WO2014048378A1 - Method and device for image processing, coder and decoder - Google Patents

Abstract

A method and device for image processing, a coder and a decoder. The method comprises: determining first motion information about a target image block according to motion information about a base layer image block, wherein the base layer image block is located in a base layer image, the target image block is located in an enhancement layer image, the base layer image corresponds to the enhancement layer image, and the spatial position of the base layer image block in the base layer image corresponds to the spatial position of the target image block in the enhancement layer image; according to the motion information about an image block adjacent to the target image block in the enhancement layer image, determining second motion information about the target image block; according to the first motion information and the second motion information, generating a motion information list; according to a predetermined rule, determining the optimal motion information about the target image block from the motion information list; and according to the optimal motion information, coding the target image block. The processing efficiency can be improved.

Description

 METHOD, APPARATUS, ENCODER AND DECODER FOR IMAGE PROCESSING This application claims to be filed on September 29, 2012, the Chinese Patent Office, Application No. 201210375082.9, entitled "Methods, Apparatus, Encoders for Image Processing, and The priority of the Chinese Patent Application, the entire disclosure of which is incorporated herein by reference. Technical field

 The present invention relates to the field of video processing and, more particularly, to a method, apparatus, encoder and decoder for image processing. Background technique

 With the rapid development of the Internet and the increasing material and spiritual culture of people, the demand for video applications in the Internet, especially for high-definition video applications, is increasing, and the amount of high-definition video is very large. The problem that must be solved first in the transmission of limited bandwidth Internet is the high-definition video compression coding problem.

 Currently, fusion (MERGE) technology and advanced motion vector prediction (AMVP) technology are known. These two techniques can effectively utilize the motion information of adjacent image blocks to determine the motion information of the currently processed image block. The MERGE technique refers to a technique of directly using motion information acquired from neighboring image blocks as current motion image block motion information. The AMVP technique refers to a technique of predicting motion information of a currently processed image block using motion information acquired from neighboring image blocks. Both of these techniques acquire multiple motion information from neighboring image blocks and select one of the multiple motion information acquired. The neighboring image blocks may be temporally adjacent image blocks or spatially adjacent image blocks. The spatially adjacent image block is an image block that is within the same image as the currently processed image block; the temporal image block is an adjacent image block within the time domain reference image of the currently processed image block. These two techniques can effectively utilize the motion information of neighboring image blocks to determine the motion information of the currently processed image block.

In addition, in a network environment (such as the Internet), since the network bandwidth is limited, the requirements of the terminal device and the user are different, so the code stream compressed once for a specific application is not satisfactory and effective. For even a specific user or device, it doesn't even make sense. An effective way to solve this problem is to use scalable video coding (SVC) technology. In the SVC technology, based on spatial resolution and temporal resolution Or a quality parameter such as signal-to-noise ratio intensity, which divides an image into multiple image layers. The goal of SVC is to make the image layer with high quality make full use of the information of the image layer with low quality, and improve the efficiency of inter-layer prediction, so that the image with high quality can be more efficient.

 Therefore, it is desirable to be able to determine the motion information of the currently processed high quality image using the SVC technique, i.e., using the motion information of the low quality image, in techniques such as MERGE or AMVP. Summary of the invention

 Embodiments of the present invention provide a method, an apparatus, an encoder, and a decoder for image processing, which are capable of determining motion information of a currently processed image block while using motion information of a neighboring image block, thereby making use of a base layer image. The motion information makes it possible to determine the motion information of the currently processed image block, improving the processing efficiency.

 In a first aspect, a method for image processing is provided, the method comprising: determining first motion information of a target image block according to motion information of a base layer image block, wherein the base layer image block is located in a base layer image And the target image block is located in the enhancement layer image, the base layer image corresponding to the enhancement layer image, and the spatial position of the basic image block in the base layer image and the target image block in the enhancement layer image Corresponding to the spatial position; determining second motion information of the target image block according to motion information of the adjacent image block adjacent to the target image block in the enhancement layer image; generating according to the first motion information and the second motion information a motion information list; determining, according to a predetermined rule, optimal motion information of the target image block from the motion information list; encoding, according to the optimal motion information, the target image block to generate a target code stream, where the target code stream includes First index information indicating a location of the optimal motion information in the motion information list.

In a possible implementation, the determining, according to the motion information of the base layer image block, the first motion information of the target image block comprises: corresponding to the target image sub-block included in the target image block according to the base layer image block The motion information of the base layer image sub-block determines the motion information of the target image sub-block, wherein the target image block sub-block has a preset size; determining the first motion according to the motion information of the target image sub-block information. With reference to the first aspect and the first possible implementation manner, in a second possible implementation manner, the target image block includes at least two target image sub-blocks, and the target image included according to the base layer image block Determining motion information of the base layer image sub-block corresponding to the target image sub-block included in the block, determining motion information of the target image sub-block, comprising: when compared with the first target image sub-block in the at least two target image sub-blocks Corresponding first base When the motion information of the image sub-block of the layer is empty, according to the size of the target image block, the size of the target image sub-block, and a second index indicating the position of the first target image sub-block in the target image block. Information, determining a second target image sub-block in the at least two target image sub-blocks; determining motion information of the first target image sub-block according to motion information of the second target image sub-block; corresponding, according to the target Determining the motion information of the image sub-block, determining the first motion information, including: determining, according to the motion information of the first target image sub-block, the first motion information; or determining, according to the motion information of the second target image sub-block First motion information; or determining the first motion information according to the motion information of the first target image sub-block and the motion information of the second target image sub-block.

 With reference to the first aspect, the first possible implementation manner, and the second possible implementation manner, in a third possible implementation manner, the size of the target image block, the size of the target image sub-block, and the Determining the second index information of the position of the first target image sub-block in the target image block, determining the second target image sub-block in the at least two target image sub-blocks, comprising: determining the method according to any one of the following formulas Second target image sub-block,

Idx ₂ + idx, %N/(N/2))x2 + (l- Idx _l %N /(N / 4)%2))χ N /4 ; Idx ₂ + ((l - ldx _x %N/ (N/2))x2 + (ldx _x %N / (N / 4) %2)) xN/4;

((l - ldx_x %N/(N/2))x2 + (l- ldx_x %N / (N / 4) %2)) xN/4; 其中， 表示用于指示该第二目标图像子块在该目标图像块中的位置 的第三索引信息， / 表示该第二索引信息， N是根据该目标图像块的大小 和该目标图像子块的大小确定的。 Idx ₂

((l - ldx _x %N/(N/2))x2 + (l- ldx _x %N / (N / 4) %2)) xN/4; where, the representation is used to indicate the second target image sub The third index information of the position of the block in the target image block, / represents the second index information, and N is determined according to the size of the target image block and the size of the target image sub-block.

 With reference to the first aspect, the first possible implementation manner, the second possible implementation manner, and the third possible implementation manner, in a fourth possible implementation manner, the Determining motion information of the base layer image sub-block corresponding to the target image sub-block included in the target image block, determining motion information of the target image sub-block, further comprising: determining, if the motion information of the second target image sub-block is empty, determining The motion information of the first target image sub-block is zero motion information.

With reference to the first aspect, the first possible implementation manner, the second possible implementation manner, the third possible implementation manner, and the fourth possible implementation manner, in the fifth possible implementation manner, The motion information of the target image sub-block, determining the first motion information, includes: determining the first motion information according to the motion information of the third target image sub-block, where the third target image sub-block is in the target image block The target image sub-block located at the preset position, or the motion information of the third target image sub-block has the highest frequency of occurrence in the motion information of the target image sub-block. Combining the first aspect, the first possible implementation manner, the second possible implementation manner, the third possible implementation manner, the fourth possible implementation manner, and the fifth possible implementation manner, in the sixth possibility In the embodiment, determining the first motion information according to the motion information of the target image sub-block includes: a reference image according to motion information of the third target image sub-block, the target image, and a reference of the target image block The time domain distance relationship of the image is subjected to a scaling process on the motion information of the third target image sub-block; and the first motion information is determined according to the motion information of the third target image sub-block after the scaling process.

 Combining the first aspect, the first possible implementation manner, the second possible implementation manner, the third possible implementation manner, the fourth possible implementation manner, the fifth possible implementation manner, and the sixth possible In a seventh possible implementation manner, the target image block includes at least two target image sub-blocks, and when the optimal information is the first motion information, according to the optimal motion information, The encoding of the target image block includes: performing deblocking filtering processing on pixels located near a boundary between the target image sub-blocks.

 Combining the first aspect, the first possible implementation manner, the second possible implementation manner, the third possible implementation manner, the fourth possible implementation manner, the fifth possible implementation manner, and the sixth possible Embodiments and a seventh possible implementation manner, in the eighth possible implementation manner, the second motion information includes time motion information and spatial motion information, and the first motion information and the second motion information, Determining the motion information list, including: determining, according to the first motion information and the second motion information, the motion information list, so that the first motion information is located in a first position of the motion information list; or according to the first motion information and the second a motion information, determining a motion information list such that the first motion information is located at a last position of the motion information list; or determining a motion information list according to the first motion information and the second motion information, so that the first motion information is located The spatial motion information in the motion information list is between the time motion information.

Combining the first aspect, the first possible implementation manner, the second possible implementation manner, the third possible implementation manner, the fourth possible implementation manner, the fifth possible implementation manner, and the sixth possible Embodiments, a seventh possible implementation manner, and an eighth possible implementation manner. In the ninth possible implementation manner, the first index information includes: used to indicate whether the optimal motion information is the first motion information a first symbol and a second symbol indicating a position of the optimal motion information in the motion list, and the encoding the target image block according to the optimal motion information, comprising: according to the first context model, Performing an arithmetic coding process on the first symbol; performing an arithmetic coding process on the second symbol according to the second context model, wherein the first context model and the The second context model is different.

 In a second aspect, a method for image processing is provided, the method comprising: determining first motion information of a target image block according to motion information of a base layer image block, wherein the base layer image block is located in a base layer image And the target image block is located in the enhancement layer image, the base layer image corresponding to the enhancement layer image, and the spatial position of the basic image block in the base layer image and the target image block in the enhancement layer image Corresponding to the spatial position; determining second motion information of the target image block according to motion information of the adjacent image block adjacent to the target image block in the enhancement layer image; generating, according to the first motion information and the second motion information a motion information list; acquiring, according to the target code stream, first index information indicating a location of the optimal motion information in the motion information list; determining, according to the first index information, optimal motion information from the motion information list And decoding the target code stream according to the optimal motion information to obtain the target image block.

 In a possible implementation, the determining, according to the motion information of the base layer image block, the first motion information of the target image block comprises: corresponding to the target image sub-block included in the target image block according to the base layer image block The motion information of the base layer image sub-block determines the motion information of the target image sub-block, wherein the target image block sub-block has a preset size; determining the first motion according to the motion information of the target image sub-block information.

 With reference to the second aspect and the first possible implementation manner, in a second possible implementation manner, the target image block includes at least two target image sub-blocks, and the target image included according to the base layer image block Determining motion information of the base layer image sub-block corresponding to the target image sub-block included in the block, determining motion information of the target image sub-block, comprising: when compared with the first target image sub-block in the at least two target image sub-blocks When the motion information of the corresponding first base layer image sub-block is empty, according to the size of the target image block, the size of the target image sub-block, and the position indicating the first target image sub-block in the target image block. Determining, by the second index information, a second target image sub-block in the at least two target image sub-blocks; determining motion information of the first target image sub-block according to the motion information of the second target image sub-block; Determining the first motion information according to the motion information of the target image sub-block, including: determining, according to motion information of the first target image sub-block Determining the first motion information according to the motion information of the second target image sub-block; or determining the motion information according to the motion information of the first target image sub-block and the motion information of the second target image sub-block; First motion information.

With reference to the second aspect, the first possible implementation manner, and the second possible implementation manner, in a third possible implementation manner, according to the size of the target image block, the target image sub-block is large Determining, according to the second index information indicating the position of the first target image sub-block in the target image block, determining the second target image sub-block in the at least two target image sub-blocks, including: a formula that determines the second target image sub-block,

(N/2))x2 + (ldx_x %N / (N / 4) %2)) xN/4;Idx ₂ / 2)) χ 2 + (1 - Idx _l %N /(N/4) %2)) xN/4; Idx ₂

(N/2))x2 + (ldx _x %N / (N / 4) %2)) xN/4;

W3⁄4 = /^/NxN + ((l-/ x ₁ N/(N/2))x2 + (l-/^ N/(N/4) 2))xN/4; where The third index information of the position of the second target image sub-block in the target image block, / represents the second index information, and N is determined according to the size of the target image block and the size of the target image sub-block.

 With reference to the second aspect, the first possible implementation manner, the second possible implementation manner, and the third possible implementation manner, in a fourth possible implementation manner, the Determining motion information of the base layer image sub-block corresponding to the target image sub-block included in the target image block, determining motion information of the target image sub-block, further comprising: determining, if the motion information of the second target image sub-block is empty, determining The motion information of the first target image sub-block is zero motion information.

 With reference to the second aspect, the first possible implementation manner, the second possible implementation manner, the third possible implementation manner, and the fourth possible implementation manner, in the fifth possible implementation manner, Determining the first motion information, the motion information of the sub-block includes: determining, according to motion information of the third target image sub-block, the first motion information sub-block is located in the target image block The positional sub-block, or the motion information of the third target image sub-block, has the highest frequency of occurrence in the motion information of the sub-block.

 Combining the second aspect, the first possible implementation manner, the second possible implementation manner, the third possible implementation manner, the fourth possible implementation manner, and the fifth possible implementation manner, in the sixth possibility In the embodiment, determining the first motion information according to the motion information of the third target image sub-block includes: a reference image according to motion information of the third target image sub-block, the target image, and the target image block And scaling the motion information of the third target image sub-block according to the time domain distance relationship of the reference image; determining the first motion information according to the motion information of the third target image sub-block after the scaling processing

Combining the second aspect, the first possible implementation manner, the second possible implementation manner, the third possible implementation manner, the fourth possible implementation manner, the fifth possible implementation manner, and the sixth possible Embodiment, in a seventh possible implementation, the target image block includes at least two Target image sub-blocks, and when the optimal information is the first motion information, decoding the target code stream according to the optimal motion information, including: being located near a boundary between the target image sub-blocks The pixels are subjected to deblocking filtering processing.

 With reference to the second aspect, the first possible implementation manner, the second possible implementation manner, the third possible implementation manner, the fourth possible implementation manner, the fifth possible implementation manner, the sixth possible Embodiments and a seventh possible implementation manner, in the eighth possible implementation manner, the second motion information includes time motion information and spatial motion information, and the first motion information and the second motion information, Determining the motion information list, including: determining, according to the first motion information and the second motion information, the motion information list, so that the first motion information is located in a first position of the motion information list; or according to the first motion information and the second a motion information, determining a motion information list such that the first motion information is located at a last position of the motion information list; or determining a motion information list according to the first motion information and the second motion information, so that the first motion information is located The spatial motion information in the motion information list is between the time motion information.

 With reference to the second aspect, the first possible implementation manner, the second possible implementation manner, the third possible implementation manner, the fourth possible implementation manner, the fifth possible implementation manner, the sixth possible Embodiments, a seventh possible implementation manner, and an eighth possible implementation manner. In the ninth possible implementation manner, the first index information includes: used to indicate whether the optimal motion information is the first motion information a first symbol and a second symbol indicating a position of the optimal motion information in the motion list, and determining the optimal motion information from the motion information list according to the first index information, including: a context model, performing arithmetic decoding processing on the first symbol, and performing arithmetic decoding processing on the second symbol according to the second context model, according to the first index information after the arithmetic decoding processing, from the motion information list Determining optimal motion information, wherein the first context model is different from the second context model.

In a third aspect, an apparatus for image processing is provided, the apparatus comprising: an acquiring unit, configured to determine first motion information of a target image block according to motion information of a base layer image block, where the base layer image block Located in the base layer image, the target image block is located in the enhancement layer image, the base layer image corresponding to the enhancement layer image, and the spatial position of the basic image block in the base layer image and the target image block are in the Corresponding to a spatial position in the enhancement layer image; configured to determine second motion information of the target image block according to motion information of the adjacent image block adjacent to the target image block in the enhancement layer image, and transmit the second motion information to the generating unit a motion information and the second motion information; a generating unit, configured to acquire the first motion information and the second motion information from the acquiring unit, And generating, according to the first motion information and the second motion information, a motion information list, and transmitting the motion information list to the selecting unit; the selecting unit, configured to acquire the motion information list from the generating unit, and according to a predetermined rule Determining the optimal motion information of the target image block in the motion information list, and transmitting the optimal motion information to the coding unit; the coding unit, configured to acquire the optimal motion information from the selection unit, and according to the optimal motion information, The target image block is encoded to generate a target code stream, the target code stream including first index information indicating a location of the optimal motion information in the motion information list.

 In a possible implementation, the acquiring unit is specifically configured to determine the target image according to motion information of a base layer image sub-block corresponding to the target image sub-block included in the target image block included in the base layer image block. The motion information of the sub-block, wherein the target image block sub-block has a preset size; and is configured to determine the first motion information according to the motion information of the target image sub-block.

 With reference to the third aspect and the first possible implementation manner, in a second possible implementation manner, the target image block includes at least two target image sub-blocks, and the acquiring unit is specifically configured to be used with the at least two targets And when the motion information of the first base layer image sub-block corresponding to the first target image sub-block in the image sub-block is empty, according to the size of the target image block, the size of the target image sub-block, and the first Determining, by the second index information of the position of the target image sub-block in the target image block, a second target image sub-block of the at least two target image sub-blocks; for using motion information of the second target image sub-block, Determining the motion information of the first target image sub-block; determining the first motion information according to the motion information of the first target image sub-block; or determining, according to the motion information of the second target image sub-block, determining the The first motion information is used to determine the first motion information according to the motion information of the first target image sub-block and the motion information of the second target image sub-block.

 With reference to the third aspect, the first possible implementation, and the second possible implementation, in a third possible implementation, the acquiring unit is specifically configured to determine the second target image according to any one of the following formulas. Piece,

Idx ₂ %N / (N / 2)) χ 2 + (l - Idx, %N / (N / 4) %2)) x N / 4;

dx_x %N/(N/2))x2 + (ldx_x %N / (N / 4) %2)) xN/4;Idx ₂

Dx _x %N/(N/2))x2 + (ldx _x %N / (N / 4) %2)) xN/4;

W3⁄4 = /^/NxN + ((l-/ x ₁ N/(N/2))x2 + (l-/^ N/(N/4) 2))xN/4; where The third index information of the position of the second target image sub-block in the target image block, / represents the second index information, and N is determined according to the size of the target image block and the size of the target image sub-block.

Combining the third aspect, the first possible implementation manner, the second possible implementation manner, and the third In a fourth possible implementation, the acquiring unit is specifically configured to determine that the motion information of the sub-block is zero motion information if the motion information of the second target image sub-block is empty.

 With reference to the third aspect, the first possible implementation manner, the second possible implementation manner, the third possible implementation manner, and the fourth possible implementation manner, in the fifth possible implementation manner, the obtaining unit Specifically, the first motion information is determined according to the motion information of the third target image sub-block, where the third target image sub-block is a sub-block located at a preset position in the target image block, or the third target image. The motion information of the sub-block has the highest frequency of occurrence in the motion information of the sub-block.

 Combining the third aspect, the first possible implementation manner, the second possible implementation manner, the third possible implementation manner, the fourth possible implementation manner, and the fifth possible implementation manner, in the sixth possibility In an implementation manner, the acquiring unit is specifically configured to: according to a reference image of motion information of the third target image sub-block, a time domain distance relationship between the target image and a reference image of the target image block, to the third target image The motion information of the block is subjected to a scaling process; and is configured to determine the first motion information according to the motion information of the third target image sub-block after the scaling process.

 Combining the third aspect, the first possible implementation manner, the second possible implementation manner, the third possible implementation manner, the fourth possible implementation manner, the fifth possible implementation manner, and the sixth possible Embodiments, in a seventh possible implementation manner, the target image block includes at least two target image sub-blocks, and when the optimal information is the first motion information, the coding unit is further configured to be located at the target The pixels near the boundary between the image sub-blocks perform deblocking filtering processing.

 Combining the third aspect, the first possible implementation manner, the second possible implementation manner, the third possible implementation manner, the fourth possible implementation manner, the fifth possible implementation manner, and the sixth possible Embodiments and a seventh possible implementation manner, in the eighth possible implementation manner, the second motion information includes time motion information and spatial motion information, and the generating unit is specifically configured to use the first motion information and the a second motion information, determining a motion information list such that the first motion information is located at a first position of the motion information list; or for determining a motion information list according to the first motion information and the second motion information, so that the first The motion information is located at the last position of the motion information list; or for determining the motion information list according to the first motion information and the second motion information, so that the first motion information is located in the motion information list and the motion information is Time between motion information.

With reference to the third aspect, the first possible implementation manner, the second possible implementation manner, the third possible implementation manner, the fourth possible implementation manner, the fifth possible implementation manner, the sixth a possible implementation manner, a seventh possible implementation manner, and an eighth possible implementation manner. In the ninth possible implementation manner, the first index information includes, to indicate whether the optimal motion information is the first a first symbol of motion information and a second symbol indicating a position of the optimal motion information in the motion list, and the encoding unit is specifically configured to perform arithmetic coding processing on the first symbol according to the first context model And performing arithmetic coding processing on the second symbol according to the second context model, where the first context model is different from the second context model.

 According to a fourth aspect, an apparatus for image processing is provided, the apparatus comprising: an acquiring unit, configured to determine first motion information of a target image block according to motion information of a base layer image block, where the base layer image block Located in the base layer image, the target image block is located in the enhancement layer image, the base layer image corresponding to the enhancement layer image, and the spatial position of the basic image block in the base layer image and the target image block are in the Corresponding to a spatial position in the enhancement layer image; configured to determine second motion information of the target image block according to motion information of the adjacent image block adjacent to the target image block in the enhancement layer image, and transmit the second motion information to the generating unit a motion information and the second motion information; a generating unit, configured to acquire the first motion information and the second motion information from the acquiring unit, and generate a motion information list according to the first motion information and the second motion information And transmitting the motion information list to the selection unit; determining a unit, configured to determine, according to the target code stream, a first index information indicating a position of the optimal motion information in the motion information list; a decoding unit, configured to acquire the motion information list from the generating unit, and according to the first index information determined by the determining unit, The optimal motion information is determined in the motion information list, and the target code stream is decoded according to the optimal motion information to obtain the target image block.

 In a possible implementation, the acquiring unit is specifically configured to determine the target image according to motion information of a base layer image sub-block corresponding to the target image sub-block included in the target image block included in the base layer image block. The motion information of the sub-block, wherein the target image block sub-block has a preset size; and is configured to determine the first motion information according to the motion information of the target image sub-block.

With reference to the fourth aspect and the first possible implementation manner, in a second possible implementation manner, the target image block includes at least two target image sub-blocks, and the acquiring unit is specifically configured to be used with the at least two targets And when the motion information of the first base layer image sub-block corresponding to the first target image sub-block in the image sub-block is empty, according to the size of the target image block, the size of the target image sub-block, and the first Determining, by the second index information of the position of the target image sub-block in the target image block, a second target image sub-block of the at least two target image sub-blocks; for using motion information of the second target image sub-block, Determining motion information of the first target image sub-block; for using the first The motion information of the target image sub-block determines the first motion information; or is used to determine the first motion information according to the motion information of the second target image sub-block; or for the motion according to the first target image sub-block The information and the motion information of the second target image sub-block determine the first motion information.

 With reference to the fourth aspect, the first possible implementation, and the second possible implementation, in a third possible implementation, the acquiring unit is specifically configured to determine the second target image according to any one of the following formulas Piece,

dx_x %N/(N/2))x2 + (ldx_x %N / (N / 4) %2)) xN/4; W¾ =/^/NxN + ((l-/ x₁ N/(N/2))x2 + (l-/^ N/(N/4) 2))xN/4; 其中， 表示用于指示该第二目标图像子块在该目标图像块中的位置 的第三索引信息， / 表示该第二索引信息， N是根据该目标图像块的大小 和该目标图像子块的大小确定的。 Idx ₂ %N / (N / 2)) χ 2 + (1 - Idx, %N /(N/4) <3⁄42)) xN/4; Idx ₂

Dx _x %N/(N/2))x2 + (ldx _x %N / (N / 4) %2)) xN/4; W3⁄4 =/^/NxN + ((l-/ x ₁ N/(N /2))x2 + (l-/^ N/(N/4) 2))xN/4; where represents a third index indicating the position of the second target image sub-block in the target image block Information, / represents the second index information, N is determined according to the size of the target image block and the size of the target image sub-block.

 With reference to the fourth aspect, the first possible implementation manner, the second possible implementation manner, and the third possible implementation manner, in a fourth possible implementation manner, the acquiring unit is specifically used if the second target If the motion information of the image sub-block is empty, it is determined that the motion information of the sub-block is zero motion information.

 With reference to the fourth aspect, the first possible implementation manner, the second possible implementation manner, the third possible implementation manner, and the fourth possible implementation manner, in the fifth possible implementation manner, the obtaining unit Specifically, the first motion information is determined according to the motion information of the third target image sub-block, where the third target image sub-block is a sub-block located at a preset position in the target image block, or the third target image. The motion information of the sub-block has the highest frequency of occurrence in the motion information of the sub-block.

 Combining the fourth aspect, the first possible implementation manner, the second possible implementation manner, the third possible implementation manner, the fourth possible implementation manner, and the fifth possible implementation manner, in the sixth possibility In an implementation manner, the acquiring unit is specifically configured to: according to a reference image of motion information of the third target image sub-block, a time domain distance relationship between the target image and a reference image of the target image block, to the third target image The motion information of the block is subjected to a scaling process; and is configured to determine the first motion information according to the motion information of the third target image sub-block after the scaling process.

With reference to the fourth aspect, the first possible implementation manner, the second possible implementation manner, the third possible implementation manner, the fourth possible implementation manner, the fifth possible implementation manner, and the sixth possible In a seventh possible implementation manner, the target image block includes at least two target image sub-blocks, and when the optimal information is the first motion information, the decoding code unit further A deblocking filtering process is performed on pixels located near a boundary between the target image sub-blocks. With reference to the fourth aspect, the first possible implementation manner, the second possible implementation manner, the third possible implementation manner, the fourth possible implementation manner, the fifth possible implementation manner, and the sixth possible Embodiments and a seventh possible implementation manner, in the eighth possible implementation manner, the second motion information includes time motion information and spatial motion information, and the generating unit is specifically configured to use the first motion information and the a second motion information, determining a motion information list such that the first motion information is located at a first position of the motion information list; or for determining a motion information list according to the first motion information and the second motion information, so that the first The motion information is located at the last position of the motion information list; or for determining the motion information list according to the first motion information and the second motion information, so that the first motion information is located in the motion information list and the motion information is Time between motion information.

 With reference to the fourth aspect, the first possible implementation manner, the second possible implementation manner, the third possible implementation manner, the fourth possible implementation manner, the fifth possible implementation manner, and the sixth possible Embodiments, a seventh possible implementation manner, and an eighth possible implementation manner. In the ninth possible implementation manner, the first index information includes: used to indicate whether the optimal motion information is the first motion information a first symbol and a second symbol indicating a position of the optimal motion information in the motion list, and the decoding unit is specifically configured to perform an arithmetic decoding process on the first symbol according to the first context model, and according to a second context model, performing an arithmetic decoding process on the second symbol to determine optimal motion information from the motion information list according to the first index information after the arithmetic decoding process, where the first context model and the first context model The two context models are different.

According to a fifth aspect, an encoder for image processing is provided, the encoder comprising: a bus; a processor connected to the bus; a memory connected to the bus; wherein the processor passes the bus Retrieving a program stored in the memory for determining first motion information of the target image block according to motion information of the base layer image block, wherein the base layer image block is located in the base layer image, and the target image block is located in the enhanced In the layer image, the base layer image corresponds to the enhancement layer image, and a spatial position of the basic image block in the base layer image corresponds to a spatial position of the target image block in the enhancement layer image; Determining, according to the motion information of the adjacent image block adjacent to the target image block in the enhancement layer image, second motion information of the target image block; and configured to generate a motion information list according to the first motion information and the second motion information And determining, according to a predetermined rule, optimal motion information of the target image block from the motion information list; Optimal motion information, encoding the target image block to generate a target code stream, the target code stream including First index information indicating a location of the optimal motion information in the motion information list. In a possible implementation, the processor is specifically configured to determine the target image according to motion information of a base layer image sub-block corresponding to the target image sub-block included in the target image block included in the base layer image block. The motion information of the sub-block, wherein the target image block sub-block has a preset size; and is configured to determine the first motion information according to the motion information of the target image sub-block.

 With reference to the fifth aspect and the first possible implementation manner, in a second possible implementation manner, the target image block includes at least two target image sub-blocks, and the processor is specifically configured to be used with the at least two targets And when the motion information of the first base layer image sub-block corresponding to the first target image sub-block in the image sub-block is empty, according to the size of the target image block, the size of the target image sub-block, and the first Determining, by the second index information of the position of the target image sub-block in the target image block, a second target image sub-block of the at least two target image sub-blocks; for using motion information of the second target image sub-block, Determining the motion information of the first target image sub-block; determining the first motion information according to the motion information of the first target image sub-block; or determining, according to the motion information of the second target image sub-block, determining the The first motion information is used to determine the first motion information according to the motion information of the first target image sub-block and the motion information of the second target image sub-block.

 With reference to the fifth aspect, the first possible implementation, and the second possible implementation, in a third possible implementation, the processor is specifically configured to determine the second target image according to any one of the following formulas Piece,

dx_x %N/(N/2))x2 + (ldx_x %N / (N / 4) %2)) xN/4;Idx ₂ %N / (N / 2)) χ 2 + (1 - Idx, %N /(N/4) <3⁄42)) xN/4; Idx ₂

Dx _x %N/(N/2))x2 + (ldx _x %N / (N / 4) %2)) xN/4;

W3⁄4 = /^/NxN + ((l-/ x ₁ N/(N/2))x2 + (l-/^ N/(N/4) 2))xN/4; where The third index information of the position of the second target image sub-block in the target image block, / represents the second index information, and N is determined according to the size of the target image block and the size of the target image sub-block.

 With reference to the fifth aspect, the first possible implementation manner, the second possible implementation manner, and the third possible implementation manner, in a fourth possible implementation manner, the processor is specifically used if the second target If the motion information of the image sub-block is empty, it is determined that the motion information of the sub-block is zero motion information.

With reference to the fifth aspect, the first possible implementation manner, the second possible implementation manner, the third possible implementation manner, and the fourth possible implementation manner, in a fifth possible implementation manner, the processor Specifically, the first motion signal is determined according to the motion information of the third target image sub-block. The third target image sub-block is a sub-block located at a preset position in the target image block, or the motion information of the third target image sub-block has the highest frequency of occurrence in the motion information of the sub-block.

 In combination with the fifth aspect, the first possible implementation manner, the second possible implementation manner, the third possible implementation manner, the fourth possible implementation manner, and the fifth possible implementation manner, in the sixth possibility In an embodiment, the processor is specifically configured to: according to a reference image of motion information of the third target image sub-block, a time domain distance relationship between the target image and a reference image of the target image block, to the third target image The motion information of the block is subjected to a scaling process; and is configured to determine the first motion information according to the motion information of the third target image sub-block after the scaling process.

 Combining the fifth aspect, the first possible implementation manner, the second possible implementation manner, the third possible implementation manner, the fourth possible implementation manner, the fifth possible implementation manner, and the sixth possible Embodiments, in a seventh possible implementation manner, the target image block includes at least two target image sub-blocks, and when the optimal information is the first motion information, the processor is further configured to be located at the target The pixels near the boundary between the image sub-blocks perform deblocking filtering processing.

 With reference to the fifth aspect, the first possible implementation manner, the second possible implementation manner, the third possible implementation manner, the fourth possible implementation manner, the fifth possible implementation manner, and the sixth possible Embodiments and a seventh possible implementation manner, in the eighth possible implementation manner, the second motion information includes time motion information and spatial motion information, and the processor is specifically configured to use the first motion information and the a second motion information, determining a motion information list, such that the first motion information is located at a first position of the motion information list; or for determining, according to the first motion information and the second motion information, a motion information list, so that the first The motion information is located at the last position of the motion information list; or for determining the motion information list according to the first motion information and the second motion information, so that the first motion information is located in the motion information list and the motion information is Time between motion information.

With reference to the fifth aspect, the first possible implementation manner, the second possible implementation manner, the third possible implementation manner, the fourth possible implementation manner, the fifth possible implementation manner, and the sixth possible Embodiments, a seventh possible implementation manner, and an eighth possible implementation manner. In the ninth possible implementation manner, the first index information includes: used to indicate whether the optimal motion information is the first motion information a first symbol and a second symbol indicating a position of the optimal motion information in the motion list, and the processor is specifically configured to perform an arithmetic coding process on the first symbol according to the first context model; And performing, according to the second context model, an arithmetic coding process on the second symbol, wherein the first context model is different from the second context model. According to a sixth aspect, a decoder for image processing is provided, the decoder comprising: a bus; a processor connected to the bus; a memory connected to the bus; wherein the processor passes the bus Retrieving a program stored in the memory for determining first motion information of the target image block according to motion information of the base layer image block, wherein the base layer image block is located in the base layer image, and the target image block is located in the enhanced In the layer image, the base layer image corresponds to the enhancement layer image, and a spatial position of the basic image block in the base layer image corresponds to a spatial position of the target image block in the enhancement layer image; Determining, according to the motion information of the adjacent image block adjacent to the target image block in the enhancement layer image, second motion information of the target image block; and configured to generate a motion information list according to the first motion information and the second motion information For obtaining a first line indicating the location of the optimal motion information in the motion information list according to the target code stream The information is used to determine the optimal motion information from the motion information list according to the first index information, and decode the target code stream according to the optimal motion information to obtain the target image block.

 In a possible implementation, the processor is specifically configured to determine the target image according to motion information of a base layer image sub-block corresponding to the target image sub-block included in the target image block included in the base layer image block. The motion information of the sub-block, wherein the target image block sub-block has a preset size; and is configured to determine the first motion information according to the motion information of the target image sub-block.

 With reference to the sixth aspect and the first possible implementation manner, in a second possible implementation manner, the target image block includes at least two target image sub-blocks, and the processor is specifically configured to be used with the at least two targets And when the motion information of the first base layer image sub-block corresponding to the first target image sub-block in the image sub-block is empty, according to the size of the target image block, the size of the target image sub-block, and the first Determining, by the second index information of the position of the target image sub-block in the target image block, a second target image sub-block of the at least two target image sub-blocks; for using motion information of the second target image sub-block, Determining the motion information of the first target image sub-block; determining the first motion information according to the motion information of the first target image sub-block; or determining, according to the motion information of the second target image sub-block, determining the The first motion information is used to determine the first motion information according to the motion information of the first target image sub-block and the motion information of the second target image sub-block.

 With reference to the sixth aspect, the first possible implementation, and the second possible implementation, in a third possible implementation, the processor is specifically configured to determine the second target image according to any one of the following formulas Piece,

Idx ₂ + {idx, %N / (N / 2)) x 2 + (l - Idx, %N / (N / 4) %2)) χ N / 4 ;

+ ((l - ldx_x %N / (N / 2)) x 2 + {ldx_x %N / (N / 4) %2)) x N / 4 ; W¾ =/^/NxN + ((l-/ ₁%N/(N/2))x2 + (l-/^%N/(N/4)%2))xN/4; 其中， 表示用于指示该第二目标图像子块在该目标图像块中的位置 的第三索引信息， / 表示该第二索引信息， N是根据该目标图像块的大小 和该目标图像子块的大小确定的。 Idx ₂

+ ((l - ldx _x %N / (N / 2)) x 2 + {ldx _x %N / (N / 4) %2)) x N / 4 ; W3⁄4 = /^/NxN + ((l-/ ₁ %N/(N/2))x2 + (l-/^%N/(N/4)%2))xN/4; where The third index information indicating the position of the second target image sub-block in the target image block, / indicates the second index information, and N is determined according to the size of the target image block and the size of the target image sub-block.

 With reference to the sixth aspect, the first possible implementation manner, the second possible implementation manner, and the third possible implementation manner, in a fourth possible implementation manner, the processor is specifically used if the second target If the motion information of the image sub-block is empty, it is determined that the motion information of the sub-block is zero motion information.

 With reference to the sixth aspect, the first possible implementation manner, the second possible implementation manner, the third possible implementation manner, and the fourth possible implementation manner, in a fifth possible implementation manner, the processor Specifically, the first motion information is determined according to the motion information of the third target image sub-block, where the third target image sub-block is a sub-block located at a preset position in the target image block, or the third target image. The motion information of the sub-block has the highest frequency of occurrence in the motion information of the sub-block.

 Combining the sixth aspect, the first possible implementation manner, the second possible implementation manner, the third possible implementation manner, the fourth possible implementation manner, and the fifth possible implementation manner, in the sixth possibility In an embodiment, the processor is specifically configured to: according to a reference image of motion information of the third target image sub-block, a time domain distance relationship between the target image and a reference image of the target image block, to the third target image The motion information of the block is subjected to a scaling process; and is configured to determine the first motion information according to the motion information of the third target image sub-block after the scaling process.

 Combining the sixth aspect, the first possible implementation manner, the second possible implementation manner, the third possible implementation manner, the fourth possible implementation manner, the fifth possible implementation manner, and the sixth possible Embodiments, in a seventh possible implementation manner, the target image block includes at least two target image sub-blocks, and when the optimal information is the first motion information, the processor is further configured to be located at the target The pixels near the boundary between the image sub-blocks perform deblocking filtering processing.

Combining the sixth aspect, the first possible implementation manner, the second possible implementation manner, the third possible implementation manner, the fourth possible implementation manner, the fifth possible implementation manner, and the sixth possible Embodiments and a seventh possible implementation manner, in the eighth possible implementation manner, the second motion information includes time motion information and spatial motion information, and the processor is specifically configured to use the first motion information and the a second motion information, determining a motion information list, such that the first motion information is located at a first position of the motion information list; or for determining, according to the first motion information and the second motion information, a motion information list, so that the first The motion information is located at the last position of the motion information list; Or for determining the motion information list according to the first motion information and the second motion information, so that the first motion information is located between the spatial motion information in the motion information list and the time motion information.

 Combining the sixth aspect, the first possible implementation manner, the second possible implementation manner, the third possible implementation manner, the fourth possible implementation manner, the fifth possible implementation manner, and the sixth possible Embodiments, a seventh possible implementation manner, and an eighth possible implementation manner. In the ninth possible implementation manner, the first index information includes: used to indicate whether the optimal motion information is the first motion information a first symbol and a second symbol indicating a position of the optimal motion information in the motion list, and the processor is specifically configured to perform an arithmetic decoding process on the first symbol according to the first context model, and according to a second context model, performing an arithmetic decoding process on the second symbol to determine optimal motion information from the motion information list according to the first index information after the arithmetic decoding process, where the first context model and the first context model The two context models are different.

 A method, an apparatus encoder, and a decoder for image processing according to an embodiment of the present invention, in a technique of determining motion information of a currently processed image block using motion information of a neighboring image block, such as MERGE or AMVP, by using motion information in motion information The first motion information determined according to the base layer image motion information is added to the list, and the motion information of the currently processed image block can be determined by using the motion information of the neighboring image block, and the motion information of the base layer image is used to determine the current processing. The motion information of the image block improves the processing efficiency. DRAWINGS

 In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings to be used in the embodiments of the present invention will be briefly described below. Obviously, the drawings described below are only some embodiments of the present invention. Other drawings may also be obtained from those of ordinary skill in the art in view of the drawings.

 1 is a schematic flow chart of a method for image processing according to an embodiment of the present invention. 2 is a schematic diagram of a source location indicating a spatial motion signal, in accordance with an embodiment of the present invention. 3 is a schematic diagram of a source location indicating a time motion signal, in accordance with an embodiment of the present invention. 4 is a schematic diagram of sub-block partitioning and sub-block indexing according to an embodiment of the invention.

 Figure 5 is another schematic flow diagram of a method for image processing in accordance with an embodiment of the present invention.

Figure 6 is a schematic block diagram of an apparatus for image processing in accordance with an embodiment of the present invention. Figure Ί is a schematic block diagram of an apparatus for image processing according to another embodiment of the present invention. Figure 8 is a schematic block diagram of an encoder for image processing in accordance with an embodiment of the present invention. 9 is a schematic block diagram of a decoder for image processing in accordance with another embodiment of the present invention. detailed description

 The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without making creative labor are within the scope of the present invention.

 A method, apparatus, and system for image processing according to embodiments of the present invention can be adapted to include

A technique of determining motion information of a currently processed image block using motion information of a neighboring image block, such as MERGE or AMVP.

 Fig. 1 shows a schematic flow chart of a method 100 for image processing according to an embodiment of the present invention, which is described from the perspective of an encoding end. As shown in FIG. 1, the method 100 includes:

 S110. Determine first motion information of the target image block according to motion information of the base layer image block, where the base layer image block is located in the base layer image, where the target image block is located in the enhancement layer image, and the base layer image is The enhancement layer image corresponds to, and a spatial position of the basic image block in the base layer image corresponds to a spatial position of the target image block in the enhancement layer image;

S120. Determine, according to motion information of a neighboring image block adjacent to the target image block in the enhancement layer image, second motion information of the target image block.

 S130. Generate a motion information list according to the first motion information and the second motion information.

S140. Determine optimal motion information of the target image block from the motion information list according to a predetermined rule.

 S150. Encode the target image block according to the optimal motion information to generate a target code stream, where the target code stream includes first index information indicating a location of the optimal motion information in the motion information list.

Specifically, when the image is hierarchically encoded, for example, in spatial scalable coding, the image may be subjected to resolution processing to obtain a low-resolution image, and the original image is referred to as a high-resolution image as a contrast, respectively. The low resolution image and the high resolution image are encoded. For convenience of description, a high quality image to be encoded is referred to herein as an enhancement layer image, and a corresponding low quality image to be encoded (eg, the low resolution image) is referred to as a base layer image. In the embodiment of the present invention, the target image is an image processed by a layered coding technique, and the basic layer refers to a quality in layered coding (including frame rate, spatial resolution, temporal resolution, signal to noise ratio intensity or quality level). The lower layer, the enhancement layer refers to the layer with higher quality (including frame rate, spatial resolution, temporal resolution, signal-to-noise ratio intensity or quality level) in the layered coding. It should be noted that, in the embodiment of the present invention, in the embodiment of the present invention, for a given enhancement layer, the corresponding base layer may be any layer lower in quality than the enhancement layer, for example, if currently There are five layers, and the coding quality is sequentially improved (that is, the first layer has the lowest quality and the fifth layer has the highest quality). If the enhancement layer is the fourth layer, the base layer may be the first layer or the second layer. It is the third layer or the fourth layer. Similarly, for a given base layer, the corresponding enhancement layer can be any layer of lower quality than the base layer.

 The enhancement layer image is the image in the currently processed enhancement layer, and the base layer image is the image in the base layer at the same time as the enhancement layer image.

 In summary, in the embodiment of the present invention, the quality of the base layer image is lower than the quality of the enhancement layer image.

 The target image block is the image block being processed in the enhancement layer image.

 The base layer image block is an image block in the base layer image that has a corresponding relationship with the target image block in spatial position.

 In the embodiment of the present invention, the correspondence between the base layer image block and the target image block may be calculated according to the resolution proportional relationship between the base layer image and the enhancement layer image. For example, in a system including the X direction and the y direction, if the resolution of the enhancement layer image in the X direction and the y direction is twice that of the base layer image, respectively, the pixel coordinates of the upper left corner in the enhancement layer are (2x, 2y). And an image block of size (2m) X ( 2n ), the corresponding block in the base layer image may be an image block whose pixel coordinates are (X , y ) and whose size is mxn in the upper left corner.

 In the embodiment of the present invention, a sub-block described later refers to a sub-block of the target image block (an image block in the enhancement layer), and a corresponding sub-block described later refers to a base layer image block in the base layer of the sub-block (belonging to The corresponding block above).

In the embodiment of the present invention, the motion information may include one or more of a prediction direction, a reference image index, or a motion vector, where the prediction direction may be divided into one-way and two-way prediction, and the one-way prediction may be further divided into forward prediction. With backward prediction, forward prediction refers to the use of a forward reference picture list, ie, a reference picture in list 0 to generate a prediction signal, and backward prediction refers to using a backward reference picture list, ie, a reference picture in list 1 to generate a prediction. Signal, bidirectional prediction means using both list 0 and list 1 The reference image produces a prediction signal; for unidirectional prediction, a reference image index is required to indicate the reference image selected in list 0 or list l, and for bidirectional prediction, two reference image indices are required, respectively indicated in list 0 and list 1 The reference image selected in each; each motion vector includes a horizontal direction component X and a vertical direction component y, which can be recorded as (X, y). For unidirectional prediction, a motion vector is required to indicate the prediction signal in the selected list 0. Or the displacement in the list 1 reference image, for bidirectional prediction, two motion vectors are needed to indicate the displacement of the forward prediction signal and the backward prediction signal in the selected list O reference image and the list 1 reference image, respectively.

 In the embodiment of the present invention, the second motion information refers to motion information acquired from a neighboring image block (an image block of the enhancement layer image) of the target image block. In the embodiment of the present invention, the second motion information may include spatial motion information, which is motion information acquired from spatial neighboring blocks in the enhancement layer image, and time motion information refers to images from the enhancement layer. The motion information acquired by the temporal neighboring block in the reference image. In the embodiment of the present invention, the method for obtaining the second motion information in S120 may be enumerated by the following method, that is,

 method 1

 The encoding end and the decoding end can set a preset value (for example, 2) indicating the number of second motion information (for example, two). Fig. 2 shows the source position (acquisition position) of the spatial motion information, and Fig. 3 shows the source position (acquisition position) of the temporal motion information. As shown in FIG. 2 or FIG. 3, when determining the second motion information, first, one motion information is respectively obtained from the three types of positions A, B, and C, wherein the class A position includes two positions of AO and A1, and the class B position includes B0. , Bl, B2 three positions, C class position includes RB (bottom right) and Cer (center) two positions. Obtaining motion information from the class C position in Fig. 3 means obtaining motion information from a position corresponding to the class C position in the reference image of the target image block. Then, the repeated motion information is removed from the acquired motion information. If there are still three motion information after removing the repeated candidate motion information, the first two motion information is selected as the candidate motion information; if the number of motion information after the repeated candidate motion information is removed is less than two, the zero motion information is added, for example, In the predictive coded picture frame (P frame), the prediction direction of the zero motion information is unidirectional prediction, and the reference picture index is 0, the motion vector (0, 0). In the bidirectionally predictive coded image frame (B frame), the prediction direction of the zero motion information is bidirectional prediction, both reference image indexes are 0, and both motion vectors are (0, 0) to ensure the final candidate motion information. The number is two.

 Method 2

The encoding end and the decoding end can set a preset value (for example, 5), and the preset value indicates the second transport The amount of information (for example, five). Fig. 2 shows the source position (acquisition position) of the spatial motion information, and Fig. 3 shows the source position (acquisition position) of the time motion information. Acquiring motion information from the class C position in FIG. 3 means acquiring motion information from a position corresponding to the class C position in the reference image of the target image block. As shown in FIG. 2 or FIG. 3, among the five pieces of motion information, up to four pieces of spatial motion information and one time motion information are included. In the process of determining the MERGE candidate motion information, if the number of non-repetitive motion information acquired from all source locations is less than five, the bidirectional prediction motion information or zero motion information is constructed according to a certain method to ensure the number of candidate motion information. For five. Descriptions of the same or similar cases are omitted below.

 In the following, the first motion information of the target image block obtained by the encoding end device in S110 is mainly described.

 In S110, the encoding end device may acquire motion information included in the base layer image block of the target image block, and determine the first motion information according to the motion information included in the base layer image block.

 Optionally, in the embodiment of the present invention, determining the first motion information of the target image block according to the motion information of the base layer image block includes:

 Determining motion information of the target image sub-block according to motion information of the base layer image sub-block corresponding to the target image sub-block included in the target image block, wherein the target image block sub-block has Pre-set size;

 The first motion information is determined according to motion information of the target image sub-block.

 Specifically, in the embodiment of the present invention, the target image block may be configured by at least two sub-blocks (ie, target image sub-blocks), wherein the size of the sub-block may be determined according to a preset value, for convenience of description. In the following, the sub-block size is 4 x 4 as an example. For example, if the size of the target image block is 16 x 16, it can be determined that the target image block includes 16 sub-blocks (size 4 x 4). Therefore, in the embodiment of the present invention, a corresponding sub-block in the basic layer (belonging to the base layer image block) of each sub-block in the target image block may be determined, and motion information of the corresponding sub-block is determined.

 Optionally, determining the motion information of the target image sub-block according to the motion information of the base layer image sub-block corresponding to the target image sub-block included in the target image block that is included in the base layer image block, including:

When the motion information of the first base layer image sub-block corresponding to the first target image sub-block is non-empty, the motion information of the first base layer image sub-block is used as the motion information of the first target image sub-block . Specifically, the pixel may be determined in the base layer image according to the coordinates of a certain pixel point in the selected sub-block (the first target image sub-block) (referred to as: "(E _x , E _y )") The coordinates of the corresponding position (denoted as "() and the base layer image block containing the corresponding position coordinates is taken as the corresponding sub-block (the first base layer image sub-block). In the embodiment of the present invention, the following formula 1 can be used. And formula 2

 E xD +R

 B = Round (2)

2 ^s — where Ro O represents the operation of truncating the fractional part, and represents the offset, R _x can be calculated according to the following formula 3, and R _{y is} calculated according to the following formula 4

R _X =T ⁵ (3)

R _y = 2 ^s - ⁵ ( 4 )

Wherein, S is an accuracy control factor (for example, in the embodiment of the present invention, it can be set to 16), and D _r can be calculated according to the following formula 5, and D _{y is} calculated according to the following formula 6

 T^BaseWidth

D _v = Round (5)

 ScaledBaseWidth

T * BaseHeight

 D = Round (6)

 ScaledBaseHeight where ^ represents the width of the base layer image, BiweH gfe represents the height of the base layer image, ScaledBaseWidth represents the width of the enhancement layer image, and ScaledBaseHeight represents the height of the enhancement layer image.

Thereby, the corresponding sub-block can be determined, and in the case where the corresponding sub-block includes motion information, the prediction direction and the reference image index in the motion information can be directly used as the sub-block (first target image sub-block) Prediction direction and reference image index. The motion vector ( Μν _χ , βΜ^ of the corresponding sub-block may be scaled according to the following Equations 7 to 10, and the scaled motion vector is used as the motion vector (EMV) of the sub-block (the first target image sub-block). _x , EMV^.

EMV _x = (BMV _x x ScaledBaseWidth + R _BW ) / BaseWidth ( 7 )

EMV _y = (BMV _y x ScaledBaseHeight + R _BH ) I BaseHeight ( 8 )

R _BW = sgn(BMV _x ) * BaseWidth 12 ( 9 )

R _BH = sgn(BMV _y ) * BaseHeight 12 ( 10) Where sgn(x) is a symbolic function and the sign of x can be obtained.

 Here, it should be noted that if the resolution of the base layer image and the enhancement layer image are the same, the above-described scaling operation is not required, and the motion information of the corresponding sub-block can be directly used as the motion information of the sub-block.

 It should be understood that, in the embodiment of the present invention, the sub-block may also be indeterminate, and the motion information of the target image block is directly obtained by using the above method. That is, it can be considered that the target image block includes only one sub-block (the sub-block size is the same as the target image block). At this time, the motion information of the target image block can be acquired in the same manner as described above. And, if the target image block (or the only sub-block included in the target image block) does not have motion information, zero motion information is used as the motion information of the sub-block. In the embodiment of the present invention, zero motion information can be constructed in the following manner. For example, in a predictive coded picture frame (P frame), the prediction direction of the zero motion information is unidirectional prediction, and the reference picture index is 0, motion vector (0, 0). In the bidirectionally predictive coded picture frame (B frame), the prediction direction of the zero motion information is bidirectional prediction, both reference picture indices are 0, and both motion vectors are (0, 0).

 Optionally, in the embodiment of the present invention, the method further includes:

 Based on the encoding mode of the base layer image, it is determined whether the first base layer image sub-block corresponding to the first target image sub-block includes motion information.

 Specifically, in the embodiment of the present invention, whether the corresponding sub-block contains motion information may be determined according to an encoding mode of the base layer image (or the basic layer image block). For example, if the base layer image uses the intra prediction coding mode, it may be determined that the corresponding sub-block does not contain motion information (i.e., the motion information of the first base layer image sub-block is empty).

 Therefore, when the corresponding sub-block includes motion information, the corresponding sub-block may be determined according to the process as described above and its motion information may be acquired. When the corresponding sub-block does not include motion information, the above process may be skipped.

 In the case where the corresponding sub-block does not include motion information. The motion information of the sub-block may be determined based on motion information of neighboring blocks of the corresponding sub-block. That is, optionally, the target image block includes at least two target image sub-blocks, and

Determining motion information of the target image sub-block according to the motion information of the base layer image sub-block corresponding to the target image sub-block included in the target image block, including: at least two And when the motion information of the first base layer image sub-block corresponding to the first target image sub-block in the target image sub-block is empty, according to the size of the target image block, the size of the target image sub-block, and the indication a second position of a target image sub-block in the target image block Index information, determining a second target image sub-block in the at least two target image sub-blocks;

 Determining motion information of the first target image sub-block according to the motion information of the second target image sub-block;

 Corresponding, determining the first motion information according to the motion information of the target image sub-block, comprising: determining the first motion information according to the motion information of the first target image sub-block; or according to the second target image sub-block The motion information determines the first motion information; or determines the first motion information according to the motion information of the first target image sub-block and the motion information of the second target image sub-block.

 Specifically, without loss of generality, for example, if the size of the target image block is 16 x 16 and the size of the sub-block is 4 x 4, in the embodiment of the present invention, the index allocation method of the sub-block may be the same as the prior art. Here, the description thereof is omitted, and the division and indexing of the sub-blocks are shown in FIG.

 In the embodiment of the present invention, the processing level may be determined according to the size of the target image block and the size of the sub-block, and the processing layer is recursively layer by layer according to the processing level. For example, in the embodiment of the present invention, each processing unit (referred to as the first processing unit) in the lowest level hierarchy (referred to as the first layer) may be defined to include four sub-blocks, the previous layer of the first layer. Each processing unit (referred to as the second layer) (denoted as the second layer) includes four first processing units, and so on, in order to avoid redundancy, the recursive description is omitted. Thus, by way of example and not limitation, in the target image block shown in FIG. 4, two levels may be included. In the first layer, sub-block 0~sub-block 3 constitute the first processing unit 0, and the sub-block 4~sub The block 7 constitutes the first processing unit 1, the sub-block 8~sub-block 11 constitutes the first processing unit 2, and the sub-block 12~sub-block 15 constitutes the first processing unit 3. In the second layer, the first processing unit 0 to the first processing unit 3 constitute the second processing unit 0. It should be understood that the above-described hierarchical division method is merely illustrative, and the present invention is not limited thereto.

In the embodiment of the present invention, for each first processing unit, whether the motion information of each sub-block is empty according to the index number of the sub-block (for example, from small to large) may be determined, if the motion information of the sub-block is empty. Then, motion information of the sub-block (an example of the second target image sub-block) adjacent to the first processing unit may be determined based on the motion information. For example, if the motion information of the sub-block with index 0 (ie, sub-block 0, belonging to the first processing unit 0) is empty, motion information of other sub-blocks belonging to the same processing unit (first processing unit 0) may be acquired. And use the motion information as the motion information of the sub-block 0. The obtaining order may be, for example, first obtaining motion information of a sub-block with an index of 1 (sub-block 1, that is, an example of a second target image sub-block, adjacent to sub-block 0 in the horizontal direction), if sub-block 1 If the motion information is empty, then the index can be obtained again as 2 (subblock 2, ie, For another example of the second target image sub-block, the motion information of the sub-block adjacent to the sub-block 0 in the vertical direction, if the motion information of the sub-block 2 is empty, the index may be further obtained as 3 (sub-block 3, That is, the motion information of the sub-block of the second target image sub-block, which is adjacent to the sub-block 0 in the diagonal direction. Similarly, for each sub-block whose motion information is empty, the motion information can be filled by the above method. It should be understood that the method for filling the motion information of the sub-blocks whose motion information is empty is only an exemplary description, and the present invention is not limited thereto. For example, for the above-mentioned acquisition order, the vertical direction may also be obtained first. The motion information of the sub-block (here, the adjacent sub-block), and the motion information of the specified sub-block (here, the adjacent sub-block) in the horizontal direction is acquired, and the specified sub-block in the diagonal direction is acquired (here , for adjacent sub-blocks) motion information. That is, the order of acquisition can be arbitrarily changed.

 Therefore, after the above processing is performed on each sub-block in each first processing unit by the processing performed in the first layer, as long as the motion information of at least one of the four sub-blocks in the first processing unit is not If it is empty, it can fill (or obtain) motion information for all sub-blocks in the first processing unit that are empty.

 It should be noted that, for a sub-block that has acquired motion information from a base layer image according to the above method or a sub-block that is filled with motion information according to the above method, when motion information of the sub-block needs to be used in subsequent processing, it can be directly used. The motion information that is populated for this sub-block. That is, the motion information of the second target image sub-block may refer to the motion information of the base layer corresponding sub-block of the second target image sub-block, or may be the motion information of other enhancement layer sub-blocks filled for it. That is, determining the first motion information according to the motion information of the target image sub-block includes:

 Determining the first motion information according to the motion information of the first target image sub-block; or determining the first motion information according to the motion information of the second target image sub-block; or according to the motion of the first target image sub-block The information and the motion information of the second target image sub-block determine the first motion information.

Therefore, when it is determined that the corresponding sub-block of a certain sub-block (for example, sub-block 0) does not include motion information, the first processing unit may be in the same processing unit as the sub-block 0 from the first layer (for example, the first processing unit 0) Other sub-blocks (eg, sub-block 1 - sub-block 3) acquire motion information. When the sub-block (for example, sub-block 0) is in the same other sub-block of the first processing unit (for example, the first processing unit 0) (the specified sub-block in the first layer, for example, sub-block 1~ sub-block 3 If the motion information is empty, the predetermined sub-block in the predetermined first processing unit (for example, the first processing unit 1 to the first processing unit 3) in the second processing unit may be acquired (another example of the second target image sub-block) The motion information is used as the motion information of the sub-block (for example, sub-block 0). That is, if the corresponding sub-blocks of all the sub-blocks in one first processing unit (for example, the first processing unit 0) are all empty, other first processing units in the second processing unit may be acquired (for example, the first processing The motion information of the predetermined sub-block in the first to third processing units 3 (for convenience of explanation, the sub-block in the upper left corner of each first processing unit is described as an example), and the motion information is used as the first Motion information of each sub-block within a processing unit (first processing unit 0). The order of obtaining may be, for example, first obtaining a sub-block of the upper left corner of the first processing unit (the first processing unit 1 adjacent to the first processing unit 0 in the horizontal direction) having an index of 1 (sub-block 4, ie The motion information of the second target image sub-block is empty. If the motion information of the sub-block 4 is empty, the motion information of the other sub-blocks in the first processing unit 1 is also considered to be empty, so that the index can be re-acquired. a sub-block of the upper left corner of the first processing unit (first processing unit 2 adjacent to the first processing unit 0 in the vertical direction) of 2 (subblock 8, that is, another example of the second target image sub-block) The motion information of the sub-block 8 is considered to be empty if the motion information of the sub-block 8 is empty, so that the motion information of the other sub-blocks in the first processing unit 2 is also empty, so that the first processing unit with the index of 3 can be reacquired (first The processing unit 3, which is adjacent to the first processing unit 0 in the diagonal direction, has motion information of the sub-block in the upper left corner (sub-block 12, that is, another example of the second target image sub-block). Similarly, for the first processing unit whose motion information is empty, the motion information can be filled by the above method. It should be understood that the method for filling the motion information of the sub-blocks whose motion information is empty is only an exemplary description, and the present invention is not limited thereto. For example, for the above-mentioned acquisition order, the vertical direction may also be obtained first. Obtaining motion information of a predetermined sub-block of the first processing unit (here, adjacent to the first processing unit), and acquiring a predetermined sub-block of a predetermined first processing unit (here, an adjacent first processing unit) in the horizontal direction The motion information further acquires motion information of a prescribed sub-block of the first processing unit (here, the adjacent first processing unit) in the diagonal direction. That is, the order of acquisition can be arbitrarily changed. Further, the above-mentioned "predetermined sub-block" is not limited to the sub-block in the upper left corner of the first processing unit, and may be a sub-block at an arbitrary position in the same first processing unit.

 It should be noted that since the size of the target image block enumerated above is 16 x 16 and the size of the sub-block is 4 x 4, the target image block includes only two layers, and the above recursion process ends. However, the size of the target image block is larger, for example, 32 x 32, and the size of the sub-block is 4 x 4, then the target image block includes three layers, and the recursive operation can be continued in the same manner as described above. All sub-blocks of the image block acquire motion information.

Determining the at least two items according to the size of the target image block, the size of the target image sub-block, and second index information indicating a position of the first target image sub-block in the target image block. The second target image sub-block in the target image sub-block includes:

 Determining the second target image sub-block according to any of the following formulas,

+ ((l - ldx_x %N/(N/2))x2 + (ldx_x %N / (N / 4) %2)) xN/4; W¾ =/^/NxN + ((l-/ x₁ N/(N/2))x2 + (l-/^ N/(N/4) 2))xN/4; 其中， 表示用于指示该第二目标图像子块在该目标图像块中的位置 的第三索引信息， /^表示该第二索引信息， ％表示模运算或取余操作， N表 示该目标图像块包括的子块的数量。 Idx ₂ + idx, %N/(N/2))x2 + (l- Idx _l %N /(N / 4)%2))χ N /4 ; Idx ₂

+ ((l - ldx _x %N/(N/2))x2 + (ldx _x %N / (N / 4) %2)) xN/4; W3⁄4 =/^/NxN + ((l-/ x ₁ N/(N/2))x2 + (l-/^ N/(N/4) 2))xN/4; wherein, the representation is used to indicate that the second target image sub-block is in the target image block The third index information of the location, /^ indicates the second index information, % indicates a modulo operation or a remainder operation, and N indicates the number of sub-blocks included in the target image block.

 Specifically, according to the above formulas, the second target image sub-block within the currently processed hierarchy may be determined according to the index of the sub-block currently being processed, where Ν corresponds to the layer currently being processed, and Ν is according to the target The size of the image block and the size of the sub-block are determined (where the size of the sub-block is determined according to a preset value), for example, if the size of the target image block is 16χ 16, and the size of the sub-block is 4×4, The target image block includes two layers. When processing the first layer, Ν is the number of sub-blocks included in each processing unit (first processing unit) in the layer, here is 4. When processing the second layer, Ν is the number of sub-blocks included in each processing unit (second processing unit) in the layer, here 16.

 In the above, the formula used when the above-mentioned "prescribed sub-block" is the upper-left sub-block of the processing unit is listed. However, the present invention is not limited thereto, and the above formula may be changed in accordance with the position in the processing unit of the "predetermined sub-block".

 Optionally, the determining, according to the motion information of the base layer image sub-block corresponding to the target image sub-block included in the target image block, the motion information of the target image sub-block, further comprising:

 If the motion information of the second target image sub-block is empty, determining that the motion information of the first target image sub-block is zero motion information.

 Specifically, if the sub-block cannot be filled with motion information after the above processing, zero motion information is used as the motion information of the sub-block. In the embodiment of the present invention, zero motion information can be constructed in the following manner. For example, in predictive coded picture frames (P frames), the prediction direction of zero motion information is unidirectional prediction, and the reference picture index is 0, motion vector (0, 0). In the bidirectionally predictive coded picture frame (B frame), the prediction direction of the zero motion information is bidirectional prediction, both reference picture indices are 0, and both motion vectors are (0, 0).

It should be noted that when the target image block includes multiple processing levels, the above uses zero motion information. The method of the motion information of the sub-block may be performed after the last layer is processed, or may be performed after processing at any other level, and the present invention is not particularly limited. It should be understood that the method for obtaining the motion information of the sub-blocks listed above is only an exemplary description of the present invention, and the present invention is not limited thereto. For example, in the example of the present invention, as described above, according to the basic The coding mode of the layer image (base layer image block) determines whether the corresponding sub-block contains motion information. For example, if the base layer image uses the intra prediction coding mode, it may be determined that the corresponding sub-block does not contain motion information (ie, the motion information of the first base layer image sub-block is empty). If it is determined that only one of the sub-blocks of the target image block (specifically, its corresponding sub-block) has motion information, the motion information of the sub-block may be used as motion information of the other sub-blocks.

 Thereby, the acquisition processing of the first motion information of the target image block is completed, and thus, at S130, the first motion information and the second motion information can be added to the motion information list.

 Here, it should be noted that, in the case where the embodiment of the present invention is applied to the MERGE technique, the motion information of all the sub-blocks in the current image block is taken as a whole (that is, the motion information is unified index (the first index). The information) indication) is added to the motion information list, and some or all of the motion information in the motion information of each sub-block may also be added to the motion information list (ie, each motion information is indicated by a different index (first index information)).

 When the part of the motion information of each sub-block is added to the motion information list, the first motion information is determined according to the motion information of the sub-block, and the method includes:

 Determining the first motion information according to motion information of the third target image sub-block, where the third target image sub-block is a sub-block located at a preset position in the target image block, or

 The motion information of the third target image sub-block has the highest frequency of occurrence in the motion information of the sub-block.

 Specifically, in an embodiment of the invention, the one or more motion information may be obtained from different locations of the base layer image blocks in the base layer. The embodiment of the present invention can provide three methods for acquiring the motion information (first motion information).

 It should be understood that, in the embodiment of the present invention, in order to facilitate understanding, the foregoing sub-block is divided into a first target image sub-block, a second target image sub-block, and a third target image sub-block, but the third target image sub-block is also It may be the same sub-block as the first target image sub-block or the second target image sub-block, and the present invention is not particularly limited. Hereinafter, the description of the same or similar cases will be omitted.

Method a, selecting motion information of the sub-block in the upper left corner of the target image block (specifically, motion information of its corresponding sub-block). Method b, selecting motion information of the sub-block in the middle of the target image block (specifically, motion information of its corresponding sub-block).

 The method c selects the motion information of the highest frequency of the motion information of the sub-block of the target image block (specifically, the motion information of the corresponding sub-block).

 In the case where the embodiment of the present invention is applied to the AMVP technology, one or more motions may be selected from the motion information of each sub-block according to a preset value (for indicating the number of motion information included in the motion information list). information.

 Optionally, determining the first motion information according to the motion information of the sub-block includes: determining, according to motion information of the third target image sub-block, the third target image sub-block is a sub-block located in a preset position in the target image block, or

 The motion information of the third target image sub-block has the highest frequency of occurrence in the motion information of the sub-block.

 Specifically, in an embodiment of the invention, the one or more motion information may be obtained from different locations of the base layer image blocks in the base layer. The embodiment of the present invention can acquire the motion information (first motion information) by the above three methods (method a, method b, method c).

 Optionally, determining the first motion information according to the motion information of the third target image sub-block includes:

 And scaling the motion information of the third target image sub-block according to a reference image of the motion information of the third target image sub-block, a time domain distance relationship between the target image and the reference image of the target image block;

 The first motion information is determined based on the motion information of the third target image sub-block after the scaling process.

 Specifically, in the embodiment of the present invention, the selected motion information may be appropriately scaled according to the distance relationship between the reference image of the selected motion information, the enhancement layer image, and the reference image of the target image block in time. Processing, adding the motion information after the scaling process to the motion information list as the first motion information.

 In S130, optionally, in the embodiment of the present invention, the second motion information includes time motion information and spatial motion information, and

Determining the motion information list according to the first motion information and the second motion information, comprising: determining, according to the first motion information and the second motion information, the motion information list, so that the first motion information is located in the motion information list. First place; or Determining, according to the first motion information and the second motion information, a motion information list, so that the first motion information is located at a last position of the motion information list; or

 Based on the first motion information and the second motion information, the motion information list is determined such that the first motion information is located between the spatial motion information in the motion information list and the temporal motion information.

 Specifically, in the embodiment of the present invention, the first motion information may be located at the last position of the motion information list, or the first motion information may be located after all the spatial motion information in the motion information list, and before the time motion information. .

 In S140, the optimal motion information of the target image block may be determined from the motion information list, and the pre-predetermined rule may be, for example, calculating a rate distortion cost of each motion information in the motion information list, and selecting a rate distortion cost. The smallest motion information is used as the optimal motion information.

 Moreover, in the embodiment of the present invention, the method further includes:

 An optimal coding mode is determined to perform a motion compensation coding operation on the target image block.

 Specifically, the rate distortion cost of each mode can be calculated, and the coding mode with the lowest rate distortion selectivity can be selected as the optimal coding mode.

 If the selected optimal coding mode includes the optimal motion information, the target image block is subjected to a motion compensation coding operation using the optimal motion information.

 Optionally, when the target image block includes more than one sub-block, when the optimal information is the first motion information, the method further includes:

 Filtering is performed on pixels located near the boundary between each sub-block.

 Specifically, in the embodiment of the present invention, in the case where the above-described optimal encoding mode is the MERGE mode, it is also possible to filter pixels near the boundary between the target image block and its neighboring blocks. Further, in the case where the first motion information is selected as the optimal motion information, it is also possible to perform filtering processing on pixels in the vicinity of the boundary between the sub-blocks of the target image block.

 In S150, an index (first index information) for indicating a position of the above-described optimal motion information in the motion information list is subjected to entropy encoding processing.

 In the embodiment of the present invention, the entropy encoding process may include binarization encoding processing, context model selection processing, binary arithmetic encoding processing, and context update processing.

 In the binarization process, for example, truncated unary (TU, Truncated Unary) code binarization can be employed. In the case where the number of motion information included in the motion information list is 5 (the preset value is 5), the TU code binarization is as shown in Table 1 below.

Table 1 First index binary symbol string

 0 0

 1 10

 2 110

 3 1110

 4 1111

 Optionally, the first index information includes a first symbol for indicating whether the optimal motion information is the first motion information, and a second symbol for indicating a location of the optimal motion information in the motion list, as well as

 The encoding according to the optimal motion information includes:

 Performing an arithmetic coding process on the first symbol according to the first context model;

 And performing, according to the second context model, an arithmetic coding process on the second symbol, wherein the first context model is different from the second context model.

 Specifically, the first index information of the embodiment of the present invention may include two symbols, that is, a first symbol for indicating whether the optimal motion information is the first motion information, and for indicating the optimal motion information. The second symbol of the position in the list of sports. And, the first index information may include only one symbol bit or a plurality of symbol bits.

 For example, when the first motion information is located in the first position of the motion information list, and the selected optimal motion information is the first motion information, only one symbol bit may be included. At this time, the first symbol is the same as the second symbol, and both are located. The only sign bit.

 When the first motion information is not located in the first position of the motion information list, for example, the first symbol may be carried by one symbol bit, for example, 0 indicates that the optimal motion information is the first motion information, and 1 indicates the optimal motion information. Not for the first motion information. Also, the second symbol can be carried with other symbol bits.

 In the embodiment of the present invention, different context models (or contexts) are used for the above two symbols.

 In the context model selection process, if the first motion information is placed in the first position of the motion information list, and the first motion information is the optimal motion information, the binary symbol string obtained after binarizing the first index information may be used. The first binary symbol in the first symbol.

Moreover, in this embodiment, the context model used by the first symbol is as shown in Table 2 below, and may include three context models of 0, 1, and 2. In this embodiment, for example, according to the target image Whether the image blocks on the left and above the block use their respective first motion information to determine which context model to use, for example, if the image block on the left and the top of the target image block does not use the first motion information, then the selection index is 0. Context model, if the image block on the left and top of the target image block has a first motion information, then select the context model with index 1 and if the image block on the left and the top of the target image block uses the first motion information, then select The context of the index is 2.

 In this embodiment, the second context model may be an equal probability model. The coding method using the equal probability model coding is also a by-pass coding mode, that is, the coding mode in which the second symbol is directly written into the code stream. If you use the by-pass encoding, no context updates are required. Table 2

 It should be understood that the above enumerated methods for selecting a context model are merely exemplary, and the present invention is not limited thereto. For example, the first symbol and the second symbol may also use the same context model, or adopt a by-pass mode (ie, The binary symbol is directly written to the code stream without using the context model. The first index information is encoded.

 Thereafter, the first index information can be binary arithmetically coded according to the context model selected as described above, and the used context model is updated. In the embodiment of the present invention, the process may be the same as the prior art, and the description thereof is omitted here to avoid redundancy.

 In the embodiment of the present invention, the motion compensation process may be performed on the target image block according to the selected optimal motion information, and the information of the target image block generated by the motion compensation process and the first index after the entropy coding process may be performed. Information is added to the code stream (target stream).

Here, it should be noted that, in the target code stream, the encoded target image (including the base layer image and the enhancement layer image) may be included, and the processing may be related to the prior art. Here, in order to avoid redundancy, the description thereof is omitted.

 At the decoding end, the target image information may be acquired from the code stream, and the target image (specifically, the target image block) is determined, and the first motion information and the second motion information are acquired and generated using the same method as the encoding end. A list of sports information.

 Entropy decoding processing is performed on the acquired first index information (information after entropy encoding processing), and the processing procedure may include: context model selection processing, binary arithmetic decoding processing, binarization decoding processing, and context update processing. Or similar, the description thereof is omitted here.

 In the binary arithmetic decoding process, a binary symbol string (bin string) representing the first index information can be parsed from the code stream according to the selected context model. The binary arithmetic decoding process corresponds to the binary arithmetic coding process at the encoding end.

 In the binarization decoding process, the first index information may be determined according to the parsed binary symbol string, wherein the correspondence between the used binary symbol string and each first index information (value) is the same as the encoding end, such as Table 1 above.

 Thereafter, the optimal motion information may be selected from the motion information list as the motion information of the target image block according to the decoded first index information, to perform motion compensation processing on the target image block using the motion information.

 Here, it should be noted that in the case where the embodiment of the present invention is applied to the MERGE mode, it is necessary to perform a motion compensation operation on each sub-block of the target image block. After the prediction signal of the current block is obtained by motion compensation, the residual signal obtained by the additional decoding may also be superimposed to obtain the reconstructed signal.

 Also, in the case where the encoding mode is the MERGE mode, it is also possible to filter pixels near the boundary between the target image block and its neighboring blocks. Further, in the case where the optimal motion information is the first motion information, the pixels near the boundary between the sub-blocks of the target image block may be subjected to filtering processing.

 In the case where the embodiment of the present invention is applied to the AMVP mode, the motion information of the target image block can be derived according to the optimal motion information, combined with the prediction direction, the reference image index, and the motion vector difference obtained by the additional entropy decoding. The motion information is used to perform motion compensation on the current block. After acquiring the prediction signal of the current block by motion compensation, the residual signal obtained by the additional decoding may also be superimposed to obtain the reconstructed signal.

Method for image processing according to an embodiment of the present invention, in MERGE or AMVP In the technique of determining the motion information of the currently processed image block by using the motion information of the adjacent image block, by adding the first motion information determined according to the base layer image motion information in the motion information list, the motion information using the adjacent image block can be utilized While determining the motion information of the currently processed image block, the motion information of the currently processed image block is determined by using the motion information of the base layer image, thereby improving the processing efficiency.

 Fig. 5 shows a schematic flow chart of a method 200 for image processing according to an embodiment of the present invention, which is described from the perspective of a decoding end. As shown in FIG. 5, the method 200 includes:

 S210. Determine, according to motion information of the base layer image block, the first motion information of the target image block, where the base layer image block is located in the base layer image, where the target image block is located in the enhancement layer image, and the base layer image is The enhancement layer image corresponds to, and a spatial position of the basic image block in the base layer image corresponds to a spatial position of the target image block in the enhancement layer image;

 S220. Determine, according to motion information of a neighboring image block adjacent to the target image block in the enhancement layer image, second motion information of the target image block.

 S230, generating a motion information list according to the first motion information and the second motion information; S240, acquiring first index information for indicating a location of the optimal motion information in the motion information list according to the target code stream;

 S250. Determine, according to the first index information, optimal motion information from the motion information list, and decode the target code stream according to the optimal motion information to obtain the target image block.

 Specifically, when the image is hierarchically encoded, for example, in spatial scalable coding, the image may be subjected to resolution processing to obtain a low-resolution image, and the original image is referred to as a high-resolution image as a contrast, respectively. The low resolution image and the high resolution image are encoded. For convenience of description, a high quality image to be encoded is referred to herein as an enhancement layer image, and a corresponding low quality image to be encoded (e.g., the low resolution image) is referred to as a base layer image.

In the embodiment of the present invention, the target image is an image processed by a layered coding technique, and the basic layer refers to a quality in layered coding (including frame rate, spatial resolution, temporal resolution, signal to noise ratio intensity or quality level). The lower layer, the enhancement layer refers to the layer with higher quality (including frame rate, spatial resolution, temporal resolution, signal-to-noise ratio intensity or quality level) in the layered coding. It should be noted that, in the embodiment of the present invention, in the embodiment of the present invention, for a given enhancement layer, the corresponding base layer may be any layer lower in quality than the enhancement layer, for example, if currently There are five layers, and the coding quality is sequentially improved (that is, the first layer has the lowest quality and the fifth layer has the highest quality). If the enhancement layer is the fourth layer, the base layer may be the first layer or the second layer. It can also be the third layer or the fourth layer. Similarly, for a given base layer, the corresponding enhancement layer can be any layer of lower quality than the base layer.

 The enhancement layer image is the image in the currently processed enhancement layer, and the base layer image is the image in the base layer at the same time as the enhancement layer image.

 In summary, in the embodiment of the present invention, the quality of the base layer image is lower than the quality of the enhancement layer image.

 The target image block is the image block being processed in the enhancement layer image.

 The base layer image block is an image block in the base layer image that has a corresponding relationship with the target image block in spatial position.

 In the embodiment of the present invention, the correspondence between the base layer image block and the target image block may be calculated according to the resolution proportional relationship between the base layer image and the enhancement layer image. For example, in a system including the X direction and the y direction, if the resolution of the enhancement layer image in the X direction and the y direction is twice that of the base layer image, respectively, the pixel coordinates of the upper left corner in the enhancement layer are (2x, 2y). And an image block of size (2m) X ( 2n ), the corresponding block in the base layer image may be an image block whose pixel coordinates are (X , y ) and whose size is mxn in the upper left corner.

 In the embodiment of the present invention, a sub-block described later refers to a sub-block of the target image block (an image block in the enhancement layer), and a corresponding sub-block described later refers to a base layer image block in the base layer of the sub-block (belonging to The corresponding block above).

 In the embodiment of the present invention, the motion information may include one or more of a prediction direction, a reference image index, or a motion vector, where the prediction direction may be divided into one-way and two-way prediction, and the one-way prediction may be further divided into forward prediction. With backward prediction, forward prediction refers to the use of a forward reference picture list, ie, a reference picture in list 0 to generate a prediction signal, and backward prediction refers to using a backward reference picture list, ie, a reference picture in list 1 to generate a prediction. Signal, bidirectional prediction refers to the use of reference pictures in list 0 and list 1 to generate prediction signals; for unidirectional prediction, a reference picture index is required to indicate the reference picture selected in list 0 or list l. For bidirectional prediction, two are required. Reference image indices, respectively indicating the reference images selected in list 0 and list 1; each motion vector includes a horizontal direction component X and a vertical direction component y, which can be written as (X, y), for one-way prediction, Requires a motion vector to indicate the displacement of the predicted signal in the selected list 0 or list 1 reference image, for bidirectional prediction Two motion vectors are required to indicate the displacement of the forward prediction signal and the backward prediction signal in the selected list O reference image and the list 1 reference image, respectively.

In the embodiment of the present invention, the second motion information refers to a neighboring image block from the target image block. Motion information obtained in (image block of enhancement layer image). In the embodiment of the present invention, the second motion information may include spatial motion information, which is motion information acquired from spatial neighboring blocks in the enhancement layer image, and time motion information refers to images from the enhancement layer. The motion information acquired by the temporal neighboring block in the reference image.

 In the embodiment of the present invention, in S210, the decoding end device may acquire motion information included in the base layer image block of the target image block, and determine the first motion information according to the motion information included in the base layer image block.

 Optionally, in the embodiment of the present invention, determining the first motion information of the target image block according to the motion information of the base layer image block includes:

 Determining motion information of the target image sub-block according to motion information of the base layer image sub-block corresponding to the target image sub-block included in the target image block, wherein the target image block sub-block has Pre-set size;

 The first motion information is determined according to motion information of the target image sub-block.

 Specifically, in the embodiment of the present invention, the target image block may be regarded as being composed of one or more sub-blocks, wherein the size of the sub-block may be determined according to a preset value. For convenience of description, the following is a sub-block size. For example, 4 x 4 is explained. For example, if the size of the target image block is 16 χ 16, it can be determined that the target image block includes 16 sub-blocks (size 4 x 4). Therefore, in the embodiment of the present invention, a corresponding sub-block of each sub-block in the target image block (belonging to the base layer image block) may be determined, and motion information of the corresponding sub-block is determined.

 Optionally, determining the motion information of the sub-block according to the motion information of the corresponding sub-block corresponding to the sub-block included in the base layer image block, including:

 When the motion information of the first base layer image sub-block corresponding to the first target image sub-block is non-empty, the motion information of the first base layer image sub-block is used as the motion information of the first target image sub-block .

Specifically, the pixel may be determined in the base layer image according to the coordinates of a certain pixel point in the selected sub-block (the first target image sub-block) (referred to as: "(E _x , E _y ) " ) The coordinate of the corresponding position in the middle (referred to as: " (and the base layer image block containing the corresponding position coordinates is taken as the corresponding sub-block. In the embodiment of the present invention, it can be calculated according to the above formula 1 to formula 10 (3) _x , B _y ).

Here, it should be noted that if the resolution of the base layer image and the enhancement layer image are the same, the scaling operation described above is not required, and the motion information of the corresponding sub-block may be directly used as the motion information of the sub-block. It should be understood that, in the embodiment of the present invention, the sub-block may also be indeterminate, and the motion information of the target image block is directly obtained by using the above method. That is, it can be considered that the target image block includes only one sub-block (the sub-block size is the same as the target image block). At this time, the motion information of the target image block can be acquired in the same manner as described above. And, if the target image block (or the unique sub-block included in the target image block) does not have motion information, zero motion information is used as the motion information of the sub-block. In the embodiment of the present invention, zero motion information can be constructed in the following manner. For example, in a predictive coded picture frame (P frame), the prediction direction of the zero motion information is unidirectional prediction, and the reference picture index is 0, motion vector (0, 0). In the bidirectionally predictive coded picture frame (B frame), the prediction direction of the zero motion information is bidirectional prediction, both reference picture indexes are 0, and both motion vectors are (0, 0).

 Optionally, in the embodiment of the present invention, the method further includes:

 Based on the encoding mode of the base layer image, it is determined whether the first base layer image sub-block corresponding to the first target image sub-block includes motion information.

 Specifically, in the embodiment of the present invention, whether the corresponding sub-block contains motion information may be determined according to an encoding mode of the base layer image (base layer image block). For example, if the base layer image uses the intra prediction coding mode, it may be determined that the corresponding sub-block does not contain motion information (i.e., the motion information of the first base layer image sub-block is empty).

 Therefore, when the corresponding sub-block includes motion information, the corresponding sub-block may be determined according to the process as described above and its motion information may be acquired. When the corresponding sub-block does not include motion information, the above process may be skipped.

 In the case where the corresponding sub-block does not include motion information. The motion information of the sub-block may be determined based on motion information of neighboring blocks of the corresponding sub-block. That is, optionally, the target image block includes at least two target image sub-blocks, and

 Determining motion information of the target image sub-block according to the motion information of the base layer image sub-block corresponding to the target image sub-block included in the target image block, including: at least two And when the motion information of the first base layer image sub-block corresponding to the first target image sub-block in the target image sub-block is empty, according to the size of the target image block, the size of the target image sub-block, and the indication Determining, by the second index information of a position of the target image sub-block in the target image block, a second target image sub-block in the at least two target image sub-blocks;

 Determining motion information of the first target image sub-block according to the motion information of the second target image sub-block;

Correspondingly, determining the first motion information according to the motion information of the target image sub-block includes: Determining the first motion information according to the motion information of the first target image sub-block; or determining the first motion information according to the motion information of the second target image sub-block; or according to the motion of the first target image sub-block The information and the motion information of the second target image sub-block determine the first motion information.

 Specifically, without loss of generality, for example, if the size of the target image block is 16 x 16 and the size of the sub-block is 4 x 4, in the embodiment of the present invention, the index allocation method of the sub-block may be the same as the prior art. Here, the description thereof is omitted, and the division and indexing of the sub-blocks are shown in FIG.

 In the embodiment of the present invention, the processing level may be determined according to the size of the target image block and the size of the sub-block, and the processing layer is recursively layer by layer according to the processing level. For example, in the embodiment of the present invention, each processing unit (referred to as the first processing unit) in the lowest level hierarchy (referred to as the first layer) may be defined to include four sub-blocks, the previous layer of the first layer. Each processing unit (referred to as the second layer) (denoted as the second layer) includes four first processing units, and so on, in order to avoid redundancy, the recursive description is omitted. Thus, by way of example and not limitation, in the target image block shown in FIG. 4, two levels may be included. In the first layer, sub-block 0~sub-block 3 constitute the first processing unit 0, and the sub-block 4~sub The block 7 constitutes the first processing unit 1, the sub-block 8~sub-block 11 constitutes the first processing unit 2, and the sub-block 12~sub-block 15 constitutes the first processing unit 3. In the second layer, the first processing unit 0 to the first processing unit 3 constitute the second processing unit 0. It should be understood that the above-described hierarchical division method is merely illustrative, and the present invention is not limited thereto.

In the embodiment of the present invention, for each first processing unit, whether the motion information of each sub-block is empty according to the index number of the sub-block (for example, from small to large) may be determined, if the motion information of the sub-block is empty. Then, motion information of the sub-block (an example of the second target image sub-block) adjacent to the first processing unit may be determined based on the motion information. For example, if the motion information of the sub-block with index 0 (ie, sub-block 0, belonging to the first processing unit 0) is empty, motion information of other sub-blocks belonging to the same processing unit (first processing unit 0) may be acquired. And use the motion information as the motion information of the sub-block 0. The obtaining order may be, for example, first obtaining motion information of a sub-block with an index of 1 (sub-block 1, that is, an example of a second target image sub-block, adjacent to sub-block 0 in the horizontal direction), if sub-block 1 If the motion information is empty, the motion information of the sub-block whose index is 2 (sub-block 2, that is, another example of the second target image sub-block, adjacent to the sub-block 0 in the vertical direction) may be acquired again. If the motion information of the sub-block 2 is empty, then the sub-block with the index of 3 (sub-block 3, that is, another example of the second target image sub-block, adjacent to the sub-block 0 in the diagonal direction) may be acquired. Sports information. Similarly, for each sub-block whose motion information is empty, the motion information can be performed by the above method. Fill. It should be understood that the method for filling the motion information of the sub-blocks whose motion information is empty is only an exemplary description, and the present invention is not limited thereto. For example, for the above-mentioned acquisition order, the vertical direction may also be obtained first. The motion information of the sub-block (here, the adjacent sub-block), and the motion information of the specified sub-block (here, the adjacent sub-block) in the horizontal direction is acquired, and the specified sub-block in the diagonal direction is acquired (here , for adjacent sub-blocks) motion information. That is, the order of acquisition can be arbitrarily changed.

 Therefore, after the above processing is performed on each sub-block in each first processing unit by the processing performed in the first layer, as long as the motion information of at least one of the four sub-blocks in the first processing unit is not If it is empty, it can fill (or obtain) motion information for all sub-blocks in the first processing unit that are empty.

 It should be noted that, for a sub-block that has acquired motion information from a base layer image according to the above method or a sub-block that is filled with motion information according to the above method, when motion information of the sub-block needs to be used in subsequent processing, it can be directly used. The motion information that is populated for this sub-block. That is, the motion information of the second target image sub-block may refer to the motion information of the base layer corresponding sub-block of the second target image sub-block, or may be the motion information of other enhancement layer sub-blocks filled for it. That is, determining the first motion information according to the motion information of the target image sub-block includes:

 Determining the first motion information according to the motion information of the first target image sub-block; or determining the first motion information according to the motion information of the second target image sub-block; or according to the motion of the first target image sub-block The information and the motion information of the second target image sub-block determine the first motion information.

 Therefore, when it is determined that the corresponding sub-block of a certain sub-block (for example, sub-block 0) does not include motion information, the first processing unit may be in the same processing unit as the sub-block 0 from the first layer (for example, the first processing unit 0) Other sub-blocks (eg, sub-block 1 - sub-block 3) acquire motion information. When the sub-block (for example, sub-block 0) is in the same other sub-block of the first processing unit (for example, the first processing unit 0) (the specified sub-block in the first layer, for example, sub-block 1~ sub-block 3 If the motion information is empty, the predetermined sub-block in the predetermined first processing unit (for example, the first processing unit 1 to the first processing unit 3) in the second processing unit may be acquired (another example of the second target image sub-block) The motion information is used as the motion information of the sub-block (for example, sub-block 0).

That is, if the corresponding sub-blocks of all the sub-blocks in one first processing unit (for example, the first processing unit 0) are all empty, other first processing units in the second processing unit may be acquired (for example, the first processing Motion information of a predetermined sub-block in the unit 1 to the first processing unit 3 (for convenience of explanation, the sub-block in the upper left corner of each first processing unit is described as an example), and the motion information is The information is the motion information of each sub-block in the first processing unit (first processing unit 0). The order of obtaining may be, for example, first obtaining a sub-block of the upper left corner of the first processing unit (the first processing unit 1 adjacent to the first processing unit 0 in the horizontal direction) having an index of 1 (sub-block 4, ie The motion information of the second target image sub-block is empty. If the motion information of the sub-block 4 is empty, the motion information of the other sub-blocks in the first processing unit 1 is also considered to be empty, so that the index can be re-acquired. a sub-block of the upper left corner of the first processing unit (first processing unit 2 adjacent to the first processing unit 0 in the vertical direction) of 2 (subblock 8, that is, another example of the second target image sub-block) The motion information of the sub-block 8 is considered to be empty if the motion information of the sub-block 8 is empty, so that the motion information of the other sub-blocks in the first processing unit 2 is also empty, so that the first processing unit with the index of 3 can be reacquired (first The processing unit 3, which is adjacent to the first processing unit 0 in the diagonal direction, has motion information of the sub-block in the upper left corner (sub-block 12, that is, another example of the second target image sub-block). Similarly, for the first processing unit whose motion information is empty, the motion information can be filled by the above method. It should be understood that the method for filling the motion information of the sub-blocks whose motion information is empty is only an exemplary description, and the present invention is not limited thereto. For example, for the above-mentioned acquisition order, the vertical direction may also be obtained first. Obtaining motion information of a predetermined sub-block of the first processing unit (here, adjacent to the first processing unit), and acquiring a predetermined sub-block of a predetermined first processing unit (here, an adjacent first processing unit) in the horizontal direction The motion information further acquires motion information of a prescribed sub-block of the first processing unit (here, the adjacent first processing unit) in the diagonal direction. That is, the order of acquisition can be arbitrarily changed. Further, the above-mentioned "predetermined sub-block" is not limited to the sub-block in the upper left corner of the first processing unit, and may be a sub-block at an arbitrary position in the same first processing unit.

 It should be noted that, since the size of the target image block enumerated above is 16x 16, and the size of the sub-block is 4x 4, the target image block includes only two layers, and the above recursion process ends. However, the size of the target image block is larger, for example, 32x 32, and the size of the sub-block is 4x4, then the target image block includes three layers, and the recursive operation can be continued in the same manner as described above, as the target image block All sub-blocks get motion information.

 Determining the at least two target image sub-blocks according to a size of the target image block, a size of the target image sub-block, and second index information indicating a position of the first target image sub-block in the target image block. The second target image sub-block in the middle includes:

 Determining the second target image sub-block according to any of the following formulas,

Idx ₂ + {idx, %N/(N/2))x2 + (l- Idx, %N /(N / 4)%2))χ N /4 ;

+ ((l - ldx_x %N/(N/2))x2 + {ldx_x %N / (N / 4) %2)) xN/4; W¾ =/^/NxN + ((l-/ ₁%N/(N/2))x2 + (l-/^%N/(N/4)%2))xN/4; 其中， 表示用于指示该第二目标图像子块在该目标图像块中的位置 的第三索引信息， / 表示该第二索引信息， N是根据该目标图像块的大小 和该目标图像子块的大小确定的。 Idx ₂

+ ((l - ldx _x %N/(N/2))x2 + {ldx _x %N / (N / 4) %2)) xN/4; W3⁄4 = /^/NxN + ((l-/ ₁ %N/(N/2))x2 + (l-/^%N/(N/4)%2))xN/4; where The third index information indicating the position of the second target image sub-block in the target image block, / indicates the second index information, and N is determined according to the size of the target image block and the size of the target image sub-block.

 Specifically, according to the above formulas, the second target image sub-block within the currently processed hierarchy may be determined according to the index of the sub-block currently being processed, where Ν corresponds to the layer currently being processed, and Ν is according to the target The size of the image block and the preset value are determined, for example, if the size of the target image block is 16 x 16 and the size of the sub-block is 4x 4, the target image block includes two layers as described above, when processing the first layer , Ν is the number of sub-blocks included in each processing unit (first processing unit) in the layer, here is 4. When processing the second layer, Ν is the number of sub-blocks included in each processing unit (second processing unit) in the layer, here 16.

 In the above, the formula used when the above-mentioned "prescribed sub-block" is the upper-left sub-block of the processing unit is listed. However, the present invention is not limited thereto, and the above formula may be changed in accordance with the position in the processing unit of the "predetermined sub-block".

 Optionally, the determining, according to the motion information of the base layer image sub-block corresponding to the target image sub-block included in the target image block, the motion information of the target image sub-block, further comprising:

 If the motion information of the second target image sub-block is empty, determining that the motion information of the first target image sub-block is zero motion information.

 Specifically, if the sub-block cannot be filled with motion information after the above processing, zero motion information is used as the motion information of the sub-block. In the embodiment of the present invention, zero motion information can be constructed in the following manner. For example, in predictive coded picture frames (P frames), the prediction direction of zero motion information is unidirectional prediction, and the reference picture index is 0, motion vector (0, 0). In the bidirectionally predictive coded picture frame (B frame), the prediction direction of the zero motion information is bidirectional prediction, both reference picture indices are 0, and both motion vectors are (0, 0).

It should be noted that, when the target image block includes multiple processing levels, the foregoing method of using the zero motion information as the motion information of the sub-block may be performed after processing the last layer, or may be performed on any other layer. The treatment is carried out, and the present invention is not particularly limited. It should be understood that the method for obtaining the motion information of the sub-blocks listed above is only an exemplary description of the present invention, and the present invention is not limited thereto. For example, in the example of the present invention, as described above, according to the basic The coding mode of the layer image (base layer image block) determines whether the corresponding sub-block contains motion information. E.g, If the base layer image uses the intra prediction coding mode, it may be determined that the corresponding sub-block does not contain motion information (ie, the motion information of the first base layer image sub-block is empty). If it is determined that only one of the sub-blocks of the target image block (specifically, its corresponding sub-block) has motion information, the motion information of the sub-block may be used as motion information of the other sub-blocks.

 Thereby, the acquisition processing of the first motion information of the target image block is completed, and thus, at S120, the first motion information and the second motion information can be added to the motion information list.

 Here, it should be noted that, in the case where the embodiment of the present invention is applied to the MERGE technique, the motion information of all the sub-blocks in the current image block is taken as a whole (that is, the motion information is unified index (the first index). The information) indication) is added to the motion information list, and some or all of the motion information in the motion information of each sub-block may also be added to the motion information list (ie, each motion information is indicated by a different index (first index information)).

 When the motion information of each sub-block is added to the motion information list, the first motion information is determined according to the motion information of the sub-block, and the method includes:

 Determining the first motion information according to motion information of the third target image sub-block, where the third target image sub-block is a sub-block located at a preset position in the target image block, or

 The motion information of the third target image sub-block has the highest frequency of occurrence in the motion information of the sub-block.

 Specifically, in an embodiment of the invention, the one or more motion information may be obtained from different locations of the base layer image blocks in the base layer. The embodiment of the present invention can provide the foregoing methods a, b, and c to obtain the motion information (first motion information).

 In the case where the embodiment of the present invention is applied to the AMVP technology, one or more pieces of motion information of each sub-block may be selected according to a preset value (for indicating the number of pieces of motion information included in the motion information list). Sports information.

 Optionally, determining the first motion information according to the motion information of the sub-block includes: determining, according to motion information of the third target image sub-block, the third target image sub-block is a sub-block located in a preset position in the target image block, or

 The motion information of the third target image sub-block has the highest frequency of occurrence in the motion information of the sub-block.

Specifically, in an embodiment of the invention, the one or more motion information may be obtained from different locations of the base layer image block in the base layer. Embodiments of the present invention may provide three methods for obtaining the motion information (first motion information) in the foregoing method a, method b, and method c. Optionally, determining the first motion information according to the motion information of the third target image sub-block includes:

 And scaling the motion information of the third target image sub-block according to a reference image of the motion information of the third target image sub-block, a time domain distance relationship between the target image and the reference image of the target image block;

 The first motion information is determined based on the motion information of the third target image sub-block after the scaling process.

 Specifically, in the embodiment of the present invention, the selected motion information may be appropriately scaled according to the distance relationship between the reference image of the selected motion information, the enhancement layer image, and the reference image of the target image block in time. Processing, adding the motion information after the scaling process to the motion information list as the first motion information.

 Specifically, at S220, the target image may be acquired from the code stream, the first motion information and the second motion information of the currently processed target image block are acquired, and a motion information list is generated. The method for obtaining the second motion information may be the above method 1 and method 2.

 At S230, the list of motion information can be determined.

 Optionally, in the embodiment of the present invention, the second motion information includes time motion information and spatial motion information, and

 Determining the motion information list according to the first motion information and the second motion information, comprising: determining, according to the first motion information and the second motion information, the motion information list, so that the first motion information is located in the motion information list. First place; or

 Determining, according to the first motion information and the second motion information, a motion information list such that the first motion information is located at a last position of the motion information list; or

 Based on the first motion information and the second motion information, the motion information list is determined such that the first motion information is located between the spatial motion information in the motion information list and the temporal motion information.

 Specifically, in the embodiment of the present invention, the first motion information may be located at the last position of the motion information list, or the first motion information may be located after all the spatial motion information in the motion information list, and before the time motion information. .

 In S240, the first index information may be obtained from the code stream, and the obtained first index information (the information after the entropy coding process) is subjected to entropy decoding processing, where the processing may include: context model selection processing, binary arithmetic decoding Processing, binarization decoding processing, context update processing.

In the binarization process, for example, a truncated unary (TU, Truncated Unary) code can be used. Binarization. In the case where the number of pieces of motion information included in the motion information list is 5 (the preset value is 5), the TU code binarization is as shown in Table 1 above.

 Optionally, the first index information includes a first symbol for indicating whether the optimal motion information is the first motion information, and a second symbol for indicating a location of the optimal motion information in the motion list, as well as

 The coding unit is specifically configured to perform arithmetic coding processing on the first symbol according to the first context model;

 And performing arithmetic coding processing on the second symbol according to the second context model, wherein the first context model is different from the second context model.

 Specifically, the first index information of the embodiment of the present invention may include two symbols, that is, a first symbol for indicating whether the optimal motion information is the first motion information, and for indicating the optimal motion information. The second symbol of the position in the list of sports. And, the first index information may include only one symbol bit or a plurality of symbol bits.

 For example, when the first motion information is located in the first position of the motion information list, and the selected optimal motion information is the first motion information, only one symbol bit may be included. At this time, the first symbol is the same as the second symbol, and both are located. The only sign bit.

 When the first motion information is not located in the first position of the motion information list, for example, the first symbol may be carried by one symbol bit, for example, 0 indicates that the optimal motion information is the first motion information, and 1 indicates the optimal motion information. Not for the first motion information. Also, the second symbol can be carried with other symbol bits.

 In the embodiment of the present invention, different context models (or contexts) are used for the above two symbols.

 In the context model selection process, if the first motion information is placed in the first position of the motion information list, and the first motion information is the optimal motion information, the binary symbol string obtained after binarizing the first index information may be used. The first binary symbol in the first symbol.

Moreover, in this embodiment, the context model used by the first symbol may include three context models of 0, 1, and 2 as shown in Table 2 above. In this embodiment, for example, which context model is used may be determined according to whether the image blocks on the left and the top of the target image block use their respective first motion information, for example, if the image blocks on the left and the top of the target image block are If the first motion information is not used, then the context model with index 0 is selected. If the image block on the left and the top of the target image block has a first motion information, then the context model with index 1 is selected, if the target image The image blocks on the left and top of the block use the first motion information, then the context with index 2 is selected. In this embodiment, the second context model may be an equal probability model. The coding method using the equal probability model coding is also a by-pass coding mode, that is, the coding mode in which the second symbol is directly written into the code stream. If you use the by-pass encoding, no context update processing is required.

 It should be understood that the above enumerated methods for selecting a context model are merely exemplary, and the present invention is not limited thereto. For example, the first symbol and the second symbol may also use the same context model, or adopt a by-pass mode (ie, The binary symbol is directly written to the code stream without using the context model. The first index information is encoded.

 Thereafter, the first index information can be subjected to binary arithmetic decoding according to the context model selected as described above, and the used context model is updated. In the embodiment of the present invention, the process may be the same as the prior art, and the description thereof is omitted here to avoid redundancy.

 In S250, in the embodiment of the present invention, the motion compensation process may be performed on the target image block according to the selected optimal motion information, and the information of the target image block generated by the motion compensation process and the entropy coding process are processed. The first index information is added to the code stream.

 Here, it should be noted that in the case where the embodiment of the present invention is applied to the MERGE mode, it is necessary to perform a motion compensation operation on each sub-block of the target image block. After the prediction signal of the current block is obtained by motion compensation, the residual signal obtained by the additional decoding may also be superimposed to obtain the reconstructed signal.

 Also, in the case where the encoding mode is the MERGE mode, it is also possible to filter pixels near the boundary between the target image block and its neighboring blocks. Further, in the case where the optimal motion information is the first motion information, the pixels near the boundary between the sub-blocks of the target image block may be subjected to filtering processing.

 In the case where the embodiment of the present invention is applied to the AMVP mode, the motion information of the target image block can be derived according to the optimal motion information, combined with the prediction direction, the reference image index, and the motion vector difference obtained by the additional entropy decoding. The motion information is used to perform motion compensation on the current block. After acquiring the prediction signal of the current block by motion compensation, the residual signal obtained by the additional decoding may also be superimposed to obtain the reconstructed signal.

A method for image processing according to an embodiment of the present invention, in a technique of determining motion information of a currently processed image block using motion information of a neighboring image block, such as MERGE or AMVP, by adding a base layer image to the motion information list The first motion information determined by the motion information can determine the motion information of the currently processed image block by using motion information of the adjacent image block. At the time, the motion information of the currently processed image block is determined by using the motion information of the base layer image, thereby improving the processing efficiency.

 Hereinabove, a method for image processing according to an embodiment of the present invention is described in detail with reference to FIGS. 1 to 5. Hereinafter, a device for image processing according to an embodiment of the present invention will be described in detail with reference to FIGS. 6 to 7. .

 Figure 6 shows a schematic block diagram of an apparatus 300 for image processing in accordance with an embodiment of the present invention. As shown in Figure 6, the apparatus 300 includes:

 The acquiring unit 310 is configured to determine first motion information of the target image block according to the motion information of the base layer image block, where the base layer image block is located in the base layer image, where the target image block is located in the enhancement layer image, where a base layer image corresponding to the enhancement layer image, and a spatial position of the base image block in the base layer image corresponds to a spatial position of the target image block in the enhancement layer image;

 And determining second motion information of the target image block according to motion information of the adjacent image block adjacent to the target image block in the enhancement layer image, and transmitting the first motion information and the second motion information to the generating unit 320 ;

 a generating unit 320, configured to acquire the first motion information and the second motion information from the acquiring unit, generate a motion information list according to the first motion information and the second motion information, and transmit the motion to the selecting unit Information List;

 The selecting unit 330 is configured to acquire the motion information list from the generating unit 320, and determine optimal motion information of the target image block from the motion information list according to a predetermined rule, and transmit the optimal motion information to the encoding unit 340;

 The encoding unit 340 is configured to obtain the optimal motion information from the selecting unit 330, and encode the target image block according to the optimal motion information to generate a target code stream, where the target code stream includes The first index information of the position of the motion information in the motion information list.

 Optionally, the acquiring unit 310 is specifically configured to determine motion of the target image sub-block according to motion information of the base layer image sub-block corresponding to the target image sub-block included in the target image block included in the base layer image block. Information, wherein the target image block sub-block has a preset size; and is configured to determine the first motion information according to the motion information of the target image sub-block.

In an embodiment of the invention, the quality of the base layer image is lower than the quality of the enhancement layer image. Optionally, the acquiring unit 310 is specifically configured to: when the motion information of the first base layer image sub-block corresponding to the first target image sub-block in the at least two target image sub-blocks is empty, according to the Determining a size of the target image block, a size of the target image sub-block, and second index information indicating a position of the first target image sub-block in the target image block, determining a number of the at least two target image sub-blocks Two target image sub-blocks;

 And determining, according to the motion information of the second target image sub-block, motion information of the first target image sub-block;

 Determining, according to the motion information of the first target image sub-block, the first motion information; or determining the first motion information according to the motion information of the second target image sub-block; or for using the first The motion information of the target image sub-block and the motion information of the second target image sub-block determine the first motion information.

 Optionally, the obtaining unit 310 is specifically configured to determine the second target image sub-block according to any one of the following formulas.

Idx ₂ + {idx, %N/(N/2))x2 + (l- Idx, %N /(N / 4)%2))χ N /4 ;

+ ((l - ldx_x %N/(N/2))x2 + {ldx_x %N / (N / 4) %2)) xN/4;Idx ₂

+ ((l - ldx _x %N/(N/2))x2 + {ldx _x %N / (N / 4) %2)) xN/4;

W3⁄4 = /^/NxN + ((l-/ x ₁ N/(N/2))x2 + (l-/^ N/(N/4) 2))xN/4; where The third index information of the position of the second target image sub-block in the target image block, / represents the second index information, and N is determined according to the size of the target image block and the size of the target image sub-block.

 Optionally, the acquiring unit 310 is specifically configured to determine that the motion information of the first target image sub-block is zero motion information if the motion information of the second target image sub-block is empty.

 Optionally, the acquiring unit 310 is specifically configured to determine the first motion information according to the motion information of the third target image sub-block, where the third target image sub-block is a target located in the target location in the target image block. Image sub-block, or

 The motion information of the third target image sub-block has the highest frequency of occurrence in the motion information of the target image sub-block.

 Optionally, the acquiring unit 310 is specifically configured to: according to a reference image of the motion information of the third target image sub-block, a time domain distance relationship between the target image and a reference image of the target image block, the third target image The motion information of the block is scaled;

 And determining the first motion information according to the motion information of the third target image sub-block after the scaling process.

Optionally, the target image block includes at least two sub-blocks, and when the optimal information is the first motion information, the encoding unit 340 is further configured to enter a pixel located near a boundary between the sub-blocks. Line deblocking filtering.

 Optionally, the second motion information includes time motion information and spatial motion information, and the generating unit 320 is specifically configured to determine, according to the first motion information and the second motion information, a motion information list, so that the first motion Information is at the top of the list of sports information; or

 And determining, according to the first motion information and the second motion information, the motion information list, so that the first motion information is located at a last position of the motion information list; or

 And configured to determine, according to the first motion information and the second motion information, a motion information list, such that the first motion information is located between the spatial motion information in the motion information list and the time motion information.

 Optionally, the first index information includes a first symbol for indicating whether the optimal motion information is the first motion information, and a second symbol for indicating a location of the optimal motion information in the motion list, as well as

 The encoding unit 340 is specifically configured to perform arithmetic coding processing on the first symbol according to the first context model;

 And performing arithmetic coding processing on the second symbol according to the second context model, wherein the first context model is different from the second context model.

 The apparatus 300 for image processing according to an embodiment of the present invention may correspond to an encoding end in the method of the embodiment of the present invention, and each unit in the image processing apparatus 300, that is, a module and the above other operations and/or functions respectively In order to implement the corresponding process of the method 100 in FIG. 1, for the sake of cleaning, no further details are provided herein.

 An apparatus for image processing according to an embodiment of the present invention, in a technique of determining motion information of a currently processed image block using motion information of a neighboring image block, such as MERGE or AMVP, by adding a base layer image to the motion information list The first motion information determined by the motion information can determine the motion information of the currently processed image block by using the motion information of the base layer image while determining the motion information of the currently processed image block by using the motion information of the adjacent image block. Processing efficiency.

 FIG. 7 shows a schematic block diagram of an apparatus 400 for image processing in accordance with an embodiment of the present invention. As shown in Figure 7, the apparatus 400 includes:

The acquiring unit 410 is configured to determine first motion information of the target image block according to the motion information of the base layer image block, where the base layer image block is located in the base layer image, where the target image block is located in the enhancement layer image, where The base layer image corresponds to the enhancement layer image, and the basic image block a spatial position in the base layer image corresponding to a spatial position of the target image block in the enhancement layer image;

 And determining second motion information of the target image block according to motion information of the adjacent image block adjacent to the target image block in the enhancement layer image, and transmitting the first motion information and the second motion information to the generating unit 420 ;

 The generating unit 420 is configured to acquire the first motion information and the second motion information from the acquiring unit 410, generate a motion information list according to the first motion information and the second motion information, and transmit the motion information list to the determining unit 430. The list of sports information;

 a determining unit 430, configured to determine, according to the target code stream, first index information used to indicate a location of the optimal motion information in the motion information list;

 The decoding unit 440 is configured to obtain the motion information list from the generating unit 420, and determine optimal motion information from the motion information list according to the first index information determined by the determining unit 430, according to the optimal motion information, Decoding the target code stream to obtain the target image block to decode the target code stream to obtain the target image block.

 In an embodiment of the invention, the quality of the base layer image is lower than the quality of the enhancement layer image. Optionally, the acquiring unit 410 is specifically configured to determine motion of the target image sub-block according to motion information of the base layer image sub-block corresponding to the target image sub-block included in the target image block included in the base layer image block. Information, wherein the target image block sub-block has a preset size; and is configured to determine the first motion information according to the motion information of the target image sub-block.

 The target image block includes at least two target image sub-blocks, and

 The acquiring unit 410 is specifically configured to: when the motion information of the first base layer image sub-block corresponding to the first target image sub-block in the at least two target image sub-blocks is empty, according to the size of the target image block, Determining a size of the target image sub-block and second index information indicating a position of the first target image sub-block in the target image block, and determining a second target image sub-block in the at least two target image sub-blocks;

 And determining, according to the motion information of the second target image sub-block, motion information of the first target image sub-block;

Determining, according to the motion information of the first target image sub-block, the first motion information; or determining the first motion information according to the motion information of the second target image sub-block; or for using the first The motion information of the target image sub-block and the motion information of the second target image sub-block determine the first motion information. Optionally, the acquiring unit 410 is specifically configured to determine the second target image sub-block according to any one of the following formulas.

Idx ₂ + idx, %N/(N/2))x2 + (l- Idx _l %N /(N / 4)%2))χ N /4 ;

+ ((l - ldx_x %N/(N/2))x2 + (ldx_x %N / (N / 4) %2)) xN/4; W¾ =/^/NxN + ((l-/ x₁ N/(N/2))x2 + (l-/^ N/(N/4) 2))xN/4; 其中， 表示用于指示该第二目标图像子块在该目标图像块中的位置 的第三索引信息， / 表示该第二索引信息， N是根据该目标图像块的大小 和该预设值确定的。 Idx ₂

+ ((l - ldx _x %N/(N/2))x2 + (ldx _x %N / (N / 4) %2)) xN/4; W3⁄4 =/^/NxN + ((l-/ x ₁ N/(N/2))x2 + (l-/^ N/(N/4) 2))xN/4; wherein, the representation is used to indicate that the second target image sub-block is in the target image block The third index information of the location, / represents the second index information, and N is determined according to the size of the target image block and the preset value.

 Optionally, the acquiring unit 410 is specifically configured to determine that the motion information of the first target image sub-block is zero motion information if the motion information of the second target image sub-block is empty.

 Optionally, the acquiring unit 410 is specifically configured to determine the first motion information according to the motion information of the third target image sub-block, where the third target image sub-block is a sub-block located in the target image block. Block, or

 The motion information of the third target image sub-block has the highest frequency of occurrence in the motion information of the sub-block.

 Optionally, the acquiring unit 410 is specifically configured to: according to a reference image of the motion information of the third target image sub-block, a time domain distance relationship between the target image and a reference image of the target image block, the third target image The motion information of the block is scaled;

 And determining the first motion information according to the motion information of the third target image sub-block after the scaling process.

 Optionally, when the optimal information is the first motion information, the target image block includes at least two sub-blocks, and the decoding unit 430 is further configured to perform deblocking on pixels located near a boundary between the sub-blocks. Filter processing.

 Optionally, the second motion information includes time motion information and spatial motion information, and the generating unit 420 is specifically configured to determine, according to the first motion information and the second motion information, a motion information list, so that the first motion Information is at the top of the list of sports information; or

 And determining, according to the first motion information and the second motion information, the motion information list, so that the first motion information is located at a last position of the motion information list; or

And configured to determine, according to the first motion information and the second motion information, a motion information list, so that the first motion information is located between the spatial motion information in the motion information list and the time motion information. Optionally, the first index information includes a first symbol for indicating whether the optimal motion information is the first motion information, and a second symbol for indicating a location of the optimal motion information in the motion list, as well as

 The decoding unit 430 is specifically configured to perform arithmetic decoding processing on the first symbol according to the first context model, and perform arithmetic decoding processing on the second symbol according to the second context model, to perform the first processing according to the arithmetic decoding process. The index information determines the optimal motion information from the motion information list, wherein the first context model is different from the second context model.

 The apparatus 400 for image processing according to an embodiment of the present invention may correspond to a decoding end in the method of the embodiment of the present invention, and the units in the apparatus 400 for image processing, that is, modules and other operations and/or functions described above In order to implement the corresponding processes of the method 200 in FIG. 5, respectively, for the sake of cleaning, no further details are provided herein.

 An apparatus for image processing according to an embodiment of the present invention, in a technique of determining motion information of a currently processed image block using motion information of a neighboring image block, such as MERGE or AMVP, by adding a base layer image to the motion information list The first motion information determined by the motion information can determine the motion information of the currently processed image block by using the motion information of the base layer image while determining the motion information of the currently processed image block by using the motion information of the adjacent image block. Processing efficiency.

 Hereinabove, a method and apparatus for image processing according to an embodiment of the present invention are described in detail with reference to FIGS. 1 through 7, and a method for image processing according to an embodiment of the present invention will be described in detail below with reference to FIGS. 8 and 9. Encoder and decoder.

 Fig. 8 shows a schematic block diagram of an encoder 500 for image processing in accordance with an embodiment of the present invention. As shown in FIG. 8, the encoder 500 can include:

 Bus 510;

 a processor 520 connected to the bus;

 a memory 530 connected to the bus;

 The processor 520, through the bus 510, invokes a program stored in the memory 530, for determining first motion information of the target image block according to motion information of the base layer image block, where the base layer image block is located In the base layer image, the target image block is located in the enhancement layer image, the base layer image corresponding to the enhancement layer image, and the spatial position of the basic image block in the base layer image and the target image block are in the enhancement The spatial position in the layer image corresponds;

a motion signal for a neighboring image block adjacent to the target image block in the enhancement layer image Determining second motion information of the target image block;

 And configured to generate, according to the first motion information and the second motion information, a motion information list, configured to determine, according to a predetermined rule, optimal motion information of the target image block from the motion information list;

 And for encoding the target image block according to the optimal motion information to generate a target code stream, where the target code stream includes first index information for indicating a position of the optimal motion information in the motion information list.

 In an embodiment of the invention, the quality of the base layer image is lower than the quality of the enhancement layer image. Optionally, the processor 520 is configured to determine motion of the target image sub-block according to motion information of the base layer image sub-block corresponding to the target image sub-block included in the target image block included in the base layer image block. Information, wherein the target image block sub-block has a preset size;

 The first motion information is determined according to motion information of the target image sub-block.

 Optionally, the target image block includes at least two target image sub-blocks, and

 The processor 520 is specifically configured to: when the motion information of the first base layer image sub-block corresponding to the first target image sub-block of the at least two target image sub-blocks is empty, according to the size of the target image block, Determining a size of the target image sub-block and second index information indicating a position of the first target image sub-block in the target image block, and determining a second target image sub-block in the at least two target image sub-blocks;

 And determining, according to the motion information of the second target image sub-block, motion information of the first target image sub-block;

 Determining, according to the motion information of the first target image sub-block, the first motion information; or determining the first motion information according to the motion information of the second target image sub-block; or for using the first The motion information of the target image sub-block and the motion information of the second target image sub-block determine the first motion information.

 Optionally, the processor 520 is specifically configured to determine the second target image sub-block according to any one of the following formulas.

+ ((l - ldx_x %N/(N/2))x2 + (ldx_x %N / (N / 4) %2)) xN/4; W¾ =/^/NxN + ((l-/ x₁ N/(N/2))x2 + (l-/^ N/(N/4) 2))xN/4; 其中， 表示用于指示该第二目标图像子块在该目标图像块中的位置 的第三索引信息， / 表示该第二索引信息， N是根据该目标图像块的大小 和该目标图像子块的大小确定的。 Idx ₂ + idx, %N/(N/2))x2 + (l- Idx _l %N /(N / 4)%2))χ N /4 ; Idx ₂

+ ((l - ldx _x %N/(N/2))x2 + (ldx _x %N / (N / 4) %2)) xN/4; W3⁄4 =/^/NxN + ((l-/ x ₁ N/(N/2))x2 + (l-/^ N/(N/4) 2))xN/4; wherein, the representation is used to indicate that the second target image sub-block is in the target image block The third index information of the location, / represents the second index information, and N is based on the size of the target image block And the size of the target image sub-block is determined.

 Optionally, the processor 520 is specifically configured to determine that the motion information of the first target image sub-block is zero motion information if the motion information of the second target image sub-block is empty.

 Optionally, the processor 520 is specifically configured to determine the first motion information according to the motion information of the third target image sub-block, where the third target image sub-block is a target located in the target location in the target image block. Image sub-block, or

 The motion information of the third target image sub-block has the highest frequency of occurrence in the motion information of the target image sub-block.

 Optionally, the processor 520 is specifically configured to: according to a reference image of the motion information of the third target image sub-block, a time domain distance relationship between the target image and a reference image of the target image block, to the third target image The motion information of the block is scaled;

 And determining the first motion information according to the motion information of the third target image sub-block after the scaling process.

 Optionally, the target image block includes at least two target image sub-blocks, and

 When the optimal information is the first motion information, the processor 520 is further configured to perform a deblocking filtering process on pixels located near a boundary between the target image sub-blocks.

 Optionally, the second motion information includes time motion information and spatial motion information, and the processor 520 is specifically configured to determine, according to the first motion information and the second motion information, a motion information list, so that the first motion Information is at the top of the list of sports information; or

 And determining, according to the first motion information and the second motion information, the motion information list, so that the first motion information is located at a last position of the motion information list; or

 And configured to determine, according to the first motion information and the second motion information, a motion information list, such that the first motion information is located between the spatial motion information in the motion information list and the time motion information.

 Optionally, the first index information includes a first symbol for indicating whether the optimal motion information is the first motion information, and a second symbol for indicating a location of the optimal motion information in the motion list, as well as

 The processor 520 is specifically configured to perform arithmetic coding processing on the first symbol according to the first context model;

And performing arithmetic coding processing on the second symbol according to the second context model, where the first context model is different from the second context model. The encoder 500 for image processing according to an embodiment of the present invention may correspond to an encoding end in the method of the embodiment of the present invention, and each unit in the encoder 500 for image processing, that is, a module and the above-described other operations and/or For the purpose of implementing the corresponding process of the method 100 in FIG. 1 , the functions are not described here.

 An encoder for image processing according to an embodiment of the present invention, in a technique of determining motion information of a currently processed image block using motion information of a neighboring image block, such as MERGE or AMVP, by adding a base layer according to the motion information list The first motion information determined by the image motion information can determine the motion information of the currently processed image block by using the motion information of the base layer image while determining the motion information of the currently processed image block by using the motion information of the adjacent image block. Improve processing efficiency.

 FIG. 9 shows a schematic block diagram of a decoder 600 for image processing in accordance with an embodiment of the present invention. As shown in FIG. 9, the decoder 600 can include:

 Bus 610;

 a processor 620 connected to the bus;

 a memory 630 connected to the bus;

 The processor 620 calls, by using the bus 610, a program stored in the memory 630, for determining first motion information of the target image block according to motion information of the base layer image block, where the base layer image block is located. In the base layer image, the target image block is located in the enhancement layer image, the base layer image corresponding to the enhancement layer image, and the spatial position of the basic image block in the base layer image and the target image block are in the enhancement The spatial position in the layer image corresponds;

 And determining second motion information of the target image block according to motion information of the adjacent image block adjacent to the target image block in the enhancement layer image;

 And configured to generate, according to the first motion information and the second motion information, a motion information list, configured to acquire, according to the target code stream, first index information used to indicate a location of the optimal motion information in the motion information list;

 And determining, according to the first index information, optimal motion information from the motion information list, and decoding the target code stream according to the optimal motion information to obtain the target image block.

In an embodiment of the invention, the quality of the base layer image is lower than the quality of the enhancement layer image. Optionally, the processor 620 is configured to determine motion of the target image sub-block according to motion information of the base layer image sub-block corresponding to the target image sub-block included in the target image block included in the base layer image block. Information, wherein the target image block sub-block has a preset size; The first motion information is determined according to motion information of the target image sub-block.

 Optionally, the target image block includes at least two target image sub-blocks, and

 The processor 620 is specifically configured to: when the motion information of the first base layer image sub-block corresponding to the first target image sub-block of the at least two target image sub-blocks is empty, according to the size of the target image block, Determining a size of the target image sub-block and second index information indicating a position of the first target image sub-block in the target image block, and determining a second target image sub-block in the at least two target image sub-blocks;

 And determining, according to the motion information of the second target image sub-block, motion information of the first target image sub-block;

 Determining, according to the motion information of the first target image sub-block, the first motion information; or determining the first motion information according to the motion information of the second target image sub-block; or for using the first The motion information of the target image sub-block and the motion information of the second target image sub-block determine the first motion information.

 Optionally, the processor 620 is specifically configured to determine the second target image sub-block according to any one of the following formulas.

Idx ₂ / 2)) χ 2 + (1 - Idx _l %N /(N/4) %2)) xN/4;

(N/2))x2 + (ldx_x %N / (N / 4) %2)) xN/4;Idx ₂

(N/2))x2 + (ldx _x %N / (N / 4) %2)) xN/4;

W3⁄4 = /^/NxN + ((l-/ x ₁ N/(N/2))x2 + (l-/^ N/(N/4) 2))xN/4; where The third index information of the position of the second target image sub-block in the target image block, / represents the second index information, and N is determined according to the size of the target image block and the size of the target image sub-block.

 Optionally, the processor 620 is specifically configured to determine that the motion information of the first target image sub-block is zero motion information if the motion information of the second target image sub-block is empty.

 Optionally, the processor 620 is specifically configured to determine the first motion information according to the motion information of the third target image sub-block, where the third target image sub-block is a target located in the target location in the target image block. Image sub-block, or

 The motion information of the third target image sub-block has the highest frequency of occurrence in the motion information of the target image sub-block.

Optionally, the processor 620 is specifically configured to: according to a reference image of the motion information of the third target image sub-block, a time domain distance relationship between the target image and a reference image of the target image block, the third target image The motion information of the block is scaled; And determining the first motion information according to the motion information of the third target image sub-block after the scaling process.

 Optionally, the target image block includes at least two target image sub-blocks, and

 When the optimal information is the first motion information, the processor 620 is further configured to perform deblocking filtering processing on pixels located near a boundary between the target image sub-blocks.

 Optionally, the second motion information includes time motion information and spatial motion information, and the processor 620 is specifically configured to determine, according to the first motion information and the second motion information, a motion information list, so that the first motion Information is at the top of the list of sports information; or

 And determining, according to the first motion information and the second motion information, the motion information list, so that the first motion information is located at a last position of the motion information list; or

 And configured to determine, according to the first motion information and the second motion information, a motion information list, such that the first motion information is located between the spatial motion information in the motion information list and the time motion information.

 Optionally, the first index information includes a first symbol for indicating whether the optimal motion information is the first motion information, and a second symbol for indicating a location of the optimal motion information in the motion list, as well as

 The processor 620 is specifically configured to perform arithmetic decoding processing on the first symbol according to the first context model, and perform arithmetic decoding processing on the second symbol according to the second context model, to perform the first processing according to the arithmetic decoding process. Index information, determining optimal motion information from the motion information list, wherein the first context model is different from the second context model.

 The decoder 600 for image processing according to an embodiment of the present invention may correspond to a decoding end in the method of the embodiment of the present invention, and each unit in the decoder 600 for image processing, that is, a module and the other operations described above and/or For the purpose of implementing the corresponding process of the method 200 in FIG. 5, the functions are not described here.

 A decoder for image processing according to an embodiment of the present invention, in a technique of determining motion information of a currently processed image block using motion information of a neighboring image block, such as MERGE or AMVP, by adding a base layer in the motion information list The first motion information determined by the image motion information can determine the motion information of the currently processed image block by using the motion information of the base layer image while determining the motion information of the currently processed image block by using the motion information of the adjacent image block. Improve processing efficiency.

It should be understood that, in the embodiment of the present invention, the first target image sub-block may be one or more The present invention is not particularly limited. Similarly, the third target image sub-block may be one or plural, and the present invention is not particularly limited.

 It should be understood that, in the embodiment of the present invention, the processing of the encoding end corresponds to the process of acquiring the first motion information and generating the motion information list in the processing of the decoding end, so as to ensure that the encoding end is consistent with the motion information list finally determined by the decoding end, thereby The motion information indicated in the motion information list determined at the encoding end and the decoding end by the first index information (determined by the encoding end and transmitted to the decoding end by the code stream) is the same. Other encoding operations and decoding operations of the encoding end and the decoding end may correspond. In other words, the decoding end processing method corresponding to the described encoding end processing method may be determined, or the encoding end processing method corresponding to the described decoding end processing method may be determined.

 It should be understood that the term "and/or" in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and / or B, which may represent: A exists separately, and A and B exist simultaneously There are three cases of B alone. In addition, the character "/" in this article generally indicates that the context object is an "or" relationship.

 It should be understood that, in various embodiments of the present invention, the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be taken to the embodiments of the present invention. The implementation process constitutes any limitation.

 Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in a combination of electronic hardware or computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

 It will be apparent to those skilled in the art that, for the convenience of the description and the cleaning process, the specific operation of the system, the device and the unit described above may be referred to the corresponding processes in the foregoing method embodiments, and details are not described herein again.

In the several embodiments provided herein, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

 In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

 The functions, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention, which is essential to the prior art or part of the technical solution, may be embodied in the form of a software product stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

 The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

Rights request  A method for image processing, the method comprising:  Determining first motion information of the target image block according to motion information of the base layer image block, where the base layer image block is located in the base layer image, the target image block is located in the enhancement layer image, and the base layer image is Corresponding to the enhancement layer image, and a spatial position of the basic image block in the base layer image corresponds to a spatial position of the target image block in the enhancement layer image;  Determining second motion information of the target image block according to motion information of adjacent image blocks adjacent to the target image block in the enhancement layer image;  Generating a motion information list according to the first motion information and the second motion information; determining optimal motion information of the target image block from the motion information list according to a predetermined rule;  And encoding, according to the optimal motion information, the target image block to generate a target code stream, where the target code stream includes a first part for indicating a position of the optimal motion information in the motion information list. Index information.  The method according to claim 1, wherein the determining, according to the motion information of the base layer image block, the first motion information of the target image block comprises:  Determining motion information of the target image sub-block according to motion information of the base layer image sub-block corresponding to the target image sub-block included in the target image block, where the target layer image The block sub-block has a preset size;  And determining the first motion information according to the motion information of the target image sub-block.  3. The method of claim 2, wherein the target image block comprises at least two target image sub-blocks, and  Determining the motion information of the target image sub-block according to the motion information of the base layer image sub-block corresponding to the target image sub-block included in the target image block, including: And when the motion information of the first base layer image sub-block corresponding to the first target image sub-block of the at least two target image sub-blocks is empty, according to the size of the target image block, the target image sub- Determining a second target image sub-block of the at least two target image sub-blocks by using a size of the block and second index information indicating a position of the first target image sub-block in the target image block; Determining motion information of the first target image sub-block according to motion information of the second target image sub-block;  Correspondingly, the determining the first motion information according to the motion information of the target image sub-block includes:  Determining the first motion information according to motion information of the first target image sub-block; or determining the first motion information according to motion information of the second target image sub-block; or according to the first target The motion information of the image sub-block and the motion information of the second target image sub-block determine the first motion information.  The method according to claim 3, wherein the size according to the target image block, the size of the target image sub-block, and the indication that the first target image sub-block is at the target Determining, by the second index information of the location in the image block, the second target image sub-block in the at least two target image sub-blocks, including:  Determining the second target image sub-block according to any of the following formulas, Idx ₂ + idx, %N/(N/2))x2 + (l- Idx _l %N /(N / 4)%2))χ N /4 ; Idx ₂

+ ((l - ldx _x %N/(N/2))x2 + (ldx _x %N / (N / 4) %2)) xN/4; W3⁄4 = /^/NxN + ((l-/ ₁ %N/(N/2))x2 + (l-/^%N/(N/4)%2))xN/4; where Idx ₂ represents Third index information indicating a position of the second target image sub-block in the target image block, / indicating the second index information, N being according to a size of the target image block and the target image The size of the sub-block is determined.  The method according to claim 3 or 4, wherein the motion of the base layer image sub-block corresponding to the target image sub-block included in the target image block according to the base layer image block is included Information, determining motion information of the target image sub-block, further comprising:  If the motion information of the second target image sub-block is empty, determining that the motion information of the first target image sub-block is zero motion information.  The method according to any one of claims 2 to 5, wherein the determining the first motion information according to the motion information of the target image sub-block comprises:  Determining, according to the motion information of the third target image sub-block, the third target image sub-block is a target image sub-block located at a preset position in the target image block, or the The motion information of the three-target image sub-block has the highest frequency of occurrence in the motion information of the target image sub-block. 7. The method according to claim 6, wherein the image according to the target The motion information of the sub-block, determining the first motion information, further includes:  And scaling, according to a time domain distance relationship of the reference image of the motion information of the third target image sub-block, the target image, and the reference image of the target image block, the motion information of the third target image sub-block ;  And determining the first motion information according to the motion information of the third target image sub-block after the scaling process.  The method according to any one of claims 2 to 7, wherein the target image block includes at least two target image sub-blocks, and  When the optimal information is the first motion information, the encoding the target image block according to the optimal motion information includes:  Deblocking filtering processing is performed on pixels located near the boundary between the target image sub-blocks.  The method according to any one of claims 1 to 8, wherein the second motion information comprises time motion information and spatial motion information, and  Determining the motion information list according to the first motion information and the second motion information, including:  Determining, according to the first motion information and the second motion information, a motion information list, so that the first motion information is located at a top of the motion information list; or  Determining, according to the first motion information and the second motion information, a motion information list, so that the first motion information is located at a last position of the motion information list; or  And determining, according to the first motion information and the second motion information, the motion information list such that the first motion information is located between the spatial motion information in the motion information list and the time motion information.  The method according to any one of claims 1 to 9, wherein the first index information includes a first symbol for indicating whether the optimal motion information is the first motion information and a second symbol for indicating a location of the optimal motion information in the motion list, and  The encoding according to the optimal motion information includes:  Performing an arithmetic coding process on the first symbol according to a first context model; Performing an arithmetic coding process on the second symbol according to a second context model, wherein the first context model is different from the second context model. A method for image processing, the method comprising: determining first motion information of a target image block according to motion information of a base layer image block, wherein the base layer image block is located at a base layer In the image, the target image block is located in an enhancement layer image, the base layer image corresponds to the enhancement layer image, and a spatial position of the basic image block in the base layer image and the target image The spatial position of the block in the enhancement layer image corresponds;  Determining second motion information of the target image block according to motion information of adjacent image blocks adjacent to the target image block in the enhancement layer image;  Generating, according to the first motion information and the second motion information, a motion information list; and acquiring, according to the target code stream, first index information for indicating a location of the optimal motion information in the motion information list;  Determining, according to the first index information, optimal motion information from the motion information list, and decoding the target code stream according to the optimal motion information to obtain the target image block.  The method according to claim 11, wherein the determining, according to the motion information of the base layer image block, the first motion information of the target image block comprises:  Determining motion information of the target image sub-block according to motion information of the base layer image sub-block corresponding to the target image sub-block included in the target image block, where the target layer image The block sub-block has a preset size;  And determining the first motion information according to the motion information of the target image sub-block.  13. The method of claim 12, the target image block comprising at least two target image sub-blocks, and  Determining the motion information of the target image sub-block according to the motion information of the base layer image sub-block corresponding to the target image sub-block included in the target image block, including:  And when the motion information of the first base layer image sub-block corresponding to the first target image sub-block of the at least two target image sub-blocks is empty, according to the size of the target image block, the target image sub- Determining a second target image sub-block of the at least two target image sub-blocks by using a size of the block and second index information indicating a position of the first target image sub-block in the target image block; Determining motion information of the first target image sub-block according to motion information of the second target image sub-block; Correspondingly, the determining the first motion information according to the motion information of the target image sub-block includes:  Determining the first motion information according to motion information of the first target image sub-block; or determining the first motion information according to motion information of the second target image sub-block; or according to the first target The motion information of the image sub-block and the motion information of the second target image sub-block determine the first motion information.  The method according to claim 13, wherein the according to the size of the target image block, the size of the target image sub-block, and the indication that the first target image sub-block is at the target Determining, by the second index information of the location in the image block, the second target image sub-block in the at least two target image sub-blocks, including:  Determining the second target image sub-block according to any of the following formulas, Idx ₂ + {idx, %N/(N/2))x2 + (l- Idx, %N /(N / 4)%2))χ N /4 ; Idx ₂

+ ((l - ldx _x %N/(N/2))x2 + {ldx _x %N / (N / 4) %2)) xN/4; W3⁄4 = /^/NxN + ((l-/ x ₁ N/(N/2))x2 + (l-/^ N/(N/4) 2))xN/4; where, the indication is used to indicate The third index information of the position of the second target image sub-block in the target image block, / represents the second index information, N is according to the size of the target image block and the size of the target image sub-block definite.  The method according to claim 13 or 14, wherein the motion of the base layer image sub-block corresponding to the target image sub-block included in the target image block according to the base layer image block is included The determining the motion information of the target image sub-block further includes: if the motion information of the second target image sub-block is empty, determining that the motion information of the first target image sub-block is zero motion information.  The method according to any one of claims 12 to 15, wherein the determining the first motion information according to the motion information of the target image sub-block comprises:  Determining, according to the motion information of the third target image sub-block, the third target image sub-block is a target image sub-block located at a preset position in the target image block, or the The motion information of the three-target image sub-block has the highest frequency of occurrence in the motion information of the target image sub-block.  The method according to claim 16, wherein the determining the first motion information according to the motion information of the target image sub-block further comprises: a reference image, the target image, and a location according to motion information of the third target image sub-block a time domain distance relationship of the reference image of the target image block, and performing scaling processing on the motion information of the third target image sub-block;  And determining the first motion information according to the motion information of the third target image sub-block after the scaling process.  The method according to any one of claims 12 to 17, wherein the target image block comprises at least two target image sub-blocks, and  Decoding the target code stream according to the optimal motion information, when the optimal information is the first motion information, including:  Deblocking filtering processing is performed on pixels located near the boundary between the target image sub-blocks.  The method according to any one of claims 11 to 18, wherein the second motion information comprises time motion information and spatial motion information, and  Determining the motion information list according to the first motion information and the second motion information, including:  Determining, according to the first motion information and the second motion information, a motion information list, so that the first motion information is located at a top of the motion information list; or  Determining, according to the first motion information and the second motion information, a motion information list, so that the first motion information is located at a last position of the motion information list; or  And determining, according to the first motion information and the second motion information, the motion information list such that the first motion information is located between the spatial motion information in the motion information list and the time motion information.  The method according to any one of claims 11 to 19, wherein the first index information includes a first symbol for indicating whether the optimal motion information is the first motion information and a second symbol for indicating a location of the optimal motion information in the motion list, and  Determining the optimal motion information from the motion information list according to the first index information, including: Performing an arithmetic decoding process on the first symbol according to the first context model, and performing an arithmetic decoding process on the second symbol according to the second context model, according to the first index information after the arithmetic decoding process The optimal motion information is determined in the motion information list, wherein the first context model is different from the second context model. An apparatus for image processing, the apparatus comprising: an acquiring unit, configured to determine first motion information of a target image block according to motion information of a base layer image block, where the basic layer An image block is located in a base layer image, the target image block is located in an enhancement layer image, the base layer image corresponds to the enhancement layer image, and a spatial position of the basic image block in the base layer image Corresponding to a spatial position of the target image block in the enhancement layer image;  And determining second motion information of the target image block according to motion information of adjacent image blocks adjacent to the target image block in the enhancement layer image, and transmitting the first motion information and the Second motion information;  a generating unit, configured to acquire the first motion information and the second motion information from the acquiring unit, and generate a motion information list according to the first motion information and the second motion information, and The unit transmits the motion information list;  a selecting unit, configured to acquire the motion information list from the generating unit, and determine optimal motion information of the target image block from the motion information list according to a predetermined rule, and transmit the optimal motion to a coding unit Information  a coding unit, configured to acquire the optimal motion information from the selection unit, and encode the target image block according to the optimal motion information to generate a target code stream, where the target code stream includes The first index information of the location of the optimal motion information in the motion information list.  The device according to claim 21, wherein the acquiring unit is configured to: according to the base layer image sub-block corresponding to the target image sub-block included in the target image block, according to the base layer image block The motion information of the block, the motion information of the target image sub-block is determined, where the target image block sub-block has a preset size;  And configured to determine the first motion information according to motion information of the target image sub-block. 23. The apparatus according to claim 22, wherein the target image block comprises at least two target image sub-blocks, and  The acquiring unit is specifically configured to: when motion information of the first base layer image sub-block corresponding to the first target image sub-block of the at least two target image sub-blocks is empty, according to the target image block Determining a size, a size of the target image sub-block, and second index information indicating a position of the first target image sub-block in the target image block, determining a number of the at least two target image sub-blocks Two target image sub-blocks; And determining, according to the motion information of the second target image sub-block, the first target image sub Motion information of the block;  And determining, according to the motion information of the first target image sub-block, the first motion information; or  And determining, according to the motion information of the second target image sub-block, the first motion information; or  And determining, according to the motion information of the first target image sub-block and the motion information of the second target image sub-block, the first motion information.  The device according to claim 23, wherein the acquiring unit is specifically configured to determine the second target image sub-block according to any one of the following formulas, Idx ₂ / 2)) χ 2 + (l - Idx _l %N / (N / 4) %2)) x N / 4; Idx ₂

(N/2))x2 + (ldx _x %N / (N / 4) %2)) xN/4; W3⁄4 =/^/NxN + ((l-/ x ₁ N/(N/2))x2 + (l-/^ N/(N/4) 2))xN/4; wherein Idx ₂ represents third index information indicating a position of the second target image sub-block in the target image block , / represents the second index information, N is determined according to the size of the target image block and the size of the target image sub-block.  The device according to claim 23 or 24, wherein the acquiring unit is specifically configured to: if the motion information of the second target image sub-block is empty, determine the first target image sub-block The motion information is zero motion information.  The device according to any one of claims 22 to 25, wherein the acquiring unit is specifically configured to determine the first motion information according to motion information of a third target image sub-block, where The third target image sub-block is a target image sub-block located at a preset position in the target image block, or  The motion information of the third target image sub-block has the highest frequency of occurrence in the motion information of the target image sub-block.  The device according to claim 26, wherein the acquiring unit is further configured to use, according to the reference image of the motion information of the third target image sub-block, the target image, and the target image block. And scaling a motion information of the third target image sub-block according to a time domain distance relationship of the reference image;  And determining the first motion information according to the motion information of the third target image sub-block after the scaling process. The apparatus according to any one of claims 22 to 27, wherein The target image block includes at least two target image sub-blocks, and  When the optimal information is the first motion information, the coding unit is further configured to perform deblocking filtering processing on pixels located near a boundary between the target image sub-blocks.  The apparatus according to any one of claims 21 to 28, wherein the second motion information includes time motion information and spatial motion information, and  The generating unit is specifically configured to determine, according to the first motion information and the second motion information, a motion information list, so that the first motion information is located at a top of the motion information list; or  And configured to determine, according to the first motion information and the second motion information, a motion information list, so that the first motion information is located at a last position of the motion information list; or  And configured to determine, according to the first motion information and the second motion information, a motion information list, such that the first motion information is located between the spatial motion information in the motion information list and the time motion information.  The apparatus according to any one of claims 21 to 29, wherein the first index information includes a first symbol for indicating whether the optimal motion information is the first motion information and a second symbol for indicating a location of the optimal motion information in the motion list, and  The coding unit is specifically configured to perform an arithmetic coding process on the first symbol according to the first context model;  And performing arithmetic coding processing on the second symbol according to the second context model, where the first context model is different from the second context model.  An apparatus for image processing, the apparatus comprising: an acquiring unit, configured to determine first motion information of a target image block according to motion information of a base layer image block, where the basic layer An image block is located in a base layer image, the target image block is located in an enhancement layer image, the base layer image corresponds to the enhancement layer image, and a spatial position of the basic image block in the base layer image Corresponding to a spatial position of the target image block in the enhancement layer image;  And determining second motion information of the target image block according to motion information of adjacent image blocks adjacent to the target image block in the enhancement layer image, and transmitting the first motion information and the Second motion information; a generating unit, configured to acquire the first motion information and the second motion information from the acquiring unit, and generate a motion information list according to the first motion information and the second motion information, And transmitting the motion information list to the determining unit;  a determining unit, configured to determine, according to the target code stream, first index information used to indicate a location of the optimal motion information in the motion information list, and transmit the first index information to the decoding unit;  a decoding unit, configured to acquire the motion information list from the generating unit, and determine optimal motion information from the motion information list according to the first index information determined by the determining unit, according to the optimal Motion information, decoding the target code stream to obtain the target image block.  The device according to claim 31, wherein the acquiring unit is configured to: according to the base layer image sub-block corresponding to the target image sub-block included in the target image block, according to the base layer image block The motion information of the block, the motion information of the target image sub-block is determined, where the target image block sub-block has a preset size;  And configured to determine the first motion information according to motion information of the target image sub-block. 33. The apparatus according to claim 32, wherein the target image block comprises at least two target image sub-blocks, and  The acquiring unit is specifically configured to: when motion information of the first base layer image sub-block corresponding to the first target image sub-block of the at least two target image sub-blocks is empty, according to the target image block Determining a size, a size of the target image sub-block, and second index information indicating a position of the first target image sub-block in the target image block, determining a number of the at least two target image sub-blocks Two target image sub-blocks;  And determining, according to the motion information of the second target image sub-block, motion information of the first target image sub-block;  And determining, according to the motion information of the first target image sub-block, the first motion information; or  And determining, according to the motion information of the second target image sub-block, the first motion information; or  And determining, according to the motion information of the first target image sub-block and the motion information of the second target image sub-block, the first motion information.  The device according to claim 33, wherein the acquiring unit is specifically configured to determine the second target image sub-block according to any one of the following formulas, Idx ₂ ^ Idx N x N + (i^Idx, %N / (N / 2)) χ 2 + (1 - Idx, %N / (N / 4) <3⁄42)) x N / 4 ; Idx ₂

+ ((l - Idx _x %N/(N/2))x2 + [ldx _x %N / (N / 4) %2)) xN/4; W3⁄4 =/^/NxN + ((l-/ x ₁ N / ( N / 2) x 2 + (l - / ^ N / (N / 4) 2)) x N / 4; wherein Idx ₂ is used to indicate that the second target image sub-block is at the target The third index information of the position in the image block, / represents the second index information, and N is determined according to the size of the target image block and the size of the target image sub-block.  The device according to claim 33 or 34, wherein the acquiring unit is specifically configured to: if the motion information of the second target image sub-block is empty, determine the first target image sub-block The motion information is zero motion information.  The device according to any one of claims 32 to 35, wherein the acquiring unit is specifically configured to determine the first motion information according to motion information of a third target image sub-block, where The third target image sub-block is a target image sub-block located at a preset position in the target image block, or  The motion information of the third target image sub-block has the highest frequency of occurrence in the motion information of the target image sub-block.  The device according to claim 36, wherein the acquiring unit is further configured to use, according to the reference image of the motion information of the third target image sub-block, the target image, and the target image block. And scaling a motion information of the third target image sub-block according to a time domain distance relationship of the reference image;  And determining the first motion information according to the motion information of the third target image sub-block after the scaling process.  The apparatus according to any one of claims 32 to 37, wherein the target image block includes at least two target image sub-blocks, and  When the optimal information is the first motion information, the decoding unit is further configured to perform deblocking filtering processing on pixels located near a boundary between the target image sub-blocks.  The apparatus according to any one of claims 31 to 38, wherein the second motion information includes time motion information and spatial motion information, and  The generating unit is specifically configured to determine, according to the first motion information and the second motion information, a motion information list, so that the first motion information is located at a top of the motion information list; or  And configured to determine, according to the first motion information and the second motion information, a motion information list, so that the first motion information is located at a last position of the motion information list; or And configured to determine a motion information list according to the first motion information and the second motion information, The first motion information is located between the spatial motion information in the motion information list and the temporal motion information.  The apparatus according to any one of claims 31 to 39, wherein the first index information includes a first symbol for indicating whether the optimal motion information is the first motion information and a second symbol for indicating a location of the optimal motion information in the motion list, and  The decoding unit is specifically configured to: perform arithmetic decoding processing on the first symbol according to the first context model, and perform arithmetic decoding processing on the second symbol according to the second context model, to perform processing according to the arithmetic decoding The first index information determines the optimal motion information from the motion information list, wherein the first context model is different from the second context model.  41. An encoder for image processing, the encoder comprising: a bus;  a processor coupled to the bus;  a memory connected to the bus;  The processor, by using the bus, invoking a program stored in the memory, for determining first motion information of a target image block according to motion information of a base layer image block, where the basic layer image block Located in the base layer image, the target image block is located in the enhancement layer image, the base layer image corresponds to the enhancement layer image, and the spatial position and location of the basic image block in the base layer image The spatial position of the target image block in the enhancement layer image corresponds;  And determining second motion information of the target image block according to motion information of adjacent image blocks adjacent to the target image block in the enhancement layer image;  And configured to generate, according to the first motion information and the second motion information, a motion information list, configured to determine, according to a predetermined rule, optimal motion information of the target image block from the motion information list;  And encoding, according to the optimal motion information, the target image block to generate a target code stream, where the target code stream includes a location for indicating the location of the optimal motion information in the motion information list. First index information. The encoder according to claim 41, wherein the processor is specifically configured to: according to the base layer image included in the base layer image block, a base layer image corresponding to a target image sub-block included in the target image block Motion information of the sub-block, determining motion information of the target image sub-block, The target image block sub-block has a preset size;  And determining the first motion information according to the motion information of the target image sub-block.  43. The encoder of claim 42, wherein the target image block comprises at least two target image sub-blocks, and  The processor is specifically configured to: when motion information of the first base layer image sub-block corresponding to the first target image sub-block of the at least two target image sub-blocks is empty, according to the target image block Determining a size, a size of the target image sub-block, and second index information indicating a position of the first target image sub-block in the target image block, determining a number of the at least two target image sub-blocks Two target image sub-blocks;  And determining, according to the motion information of the second target image sub-block, motion information of the first target image sub-block;  And determining, according to the motion information of the first target image sub-block, the first motion information; or  And determining, according to the motion information of the second target image sub-block, the first motion information; or  And determining, according to the motion information of the first target image sub-block and the motion information of the second target image sub-block, the first motion information.  The encoder according to claim 43, wherein the processor is specifically configured to determine the second target image sub-block according to any one of the following formulas, Idx ₂ + idx, %N/(N/2))x2 + (l- Idx _l %N /(N / 4)%2))χ N /4 ; Idx ₂

+ ((l - ldx _x %N/(N/2))x2 + (ldx _x %N / (N / 4) %2)) xN/4; W3⁄4 = /^/NxN + ((l-/ ₁ %N/(N/2))x2 + (l-/^%N/(N/4)%2))xN/4; where Idx ₂ represents Third index information indicating a position of the second target image sub-block in the target image block, / indicating the second index information, N being according to a size of the target image block and the target image The size of the sub-block is determined.  The encoder according to claim 43 or 44, wherein the processor is specifically configured to determine the first target image sub-block if the motion information of the second target image sub-block is empty The motion information is zero motion information. The encoder according to any one of claims 42 to 45, wherein the processor is specifically configured to determine the first motion information according to motion information of a third target image sub-block, where The third target image sub-block is a target located in a preset position in the target image block Image sub-block, or  The motion information of the third target image sub-block has the highest frequency of occurrence in the motion information of the target image sub-block.  The encoder according to claim 46, wherein the processor is further configured to use, according to the reference image of the motion information of the third target image sub-block, the target image, and the target image block. And scaling the motion information of the third target image sub-block according to a time domain distance relationship of the reference image;  And determining the first motion information according to the motion information of the third target image sub-block after the scaling process.  The encoder according to any one of claims 42 to 47, wherein the target image block includes at least two target image sub-blocks, and  And when the optimal information is the first motion information, the processor is further configured to perform deblocking filtering processing on pixels located near a boundary between the target image sub-blocks.  The encoder according to any one of claims 41 to 48, wherein the second motion information includes time motion information and spatial motion information, and  The processor is specifically configured to determine, according to the first motion information and the second motion information, a motion information list, so that the first motion information is located at a top of the motion information list; or  And configured to determine, according to the first motion information and the second motion information, a motion information list, so that the first motion information is located at a last position of the motion information list; or  And configured to determine, according to the first motion information and the second motion information, a motion information list, such that the first motion information is located between the spatial motion information in the motion information list and the time motion information.  The encoder according to any one of claims 41 to 49, wherein the first index information includes a first symbol for indicating whether the optimal motion information is the first motion information And a second symbol for indicating a position of the optimal motion information in the motion list, and  The processor is specifically configured to perform arithmetic coding processing on the first symbol according to the first context model;  And performing arithmetic coding processing on the second symbol according to the second context model, where the first context model is different from the second context model. 51. A decoder for image processing, wherein the decoder comprises: bus;  a processor coupled to the bus;  a memory connected to the bus;  The processor, by using the bus, invoking a program stored in the memory, for determining first motion information of a target image block according to motion information of a base layer image block, where the basic layer image block Located in the base layer image, the target image block is located in the enhancement layer image, the base layer image corresponds to the enhancement layer image, and the spatial position and location of the basic image block in the base layer image The spatial position of the target image block in the enhancement layer image corresponds;  And determining second motion information of the target image block according to motion information of adjacent image blocks adjacent to the target image block in the enhancement layer image;  And configured to generate, according to the first motion information and the second motion information, a motion information list, configured to acquire, according to the target code stream, a location for indicating a location of the optimal motion information in the motion information list. An index information;  And determining, according to the first index information, optimal motion information from the motion information list, and decoding the target code stream according to the optimal motion information to obtain the target image block.  The decoder according to claim 51, wherein the processor is specifically configured to: according to the base layer image included in the base layer image block, a base layer image corresponding to a target image sub-block included in the target image block The motion information of the sub-block determines motion information of the target image sub-block, where the target image block sub-block has a preset size;  And determining the first motion information according to the motion information of the target image sub-block.  53. The decoder of claim 52, wherein the target image block comprises at least two target image sub-blocks, and  The processor is specifically configured to: when motion information of the first base layer image sub-block corresponding to the first target image sub-block of the at least two target image sub-blocks is empty, according to the target image block Determining a size, a size of the target image sub-block, and second index information indicating a position of the first target image sub-block in the target image block, determining a number of the at least two target image sub-blocks Two target image sub-blocks; And determining, according to the motion information of the second target image sub-block, motion information of the first target image sub-block; And determining, according to the motion information of the first target image sub-block, the first motion information; or  And determining, according to the motion information of the second target image sub-block, the first motion information; or  And determining, according to the motion information of the first target image sub-block and the motion information of the second target image sub-block, the first motion information.  The decoder according to claim 53, wherein the processor is specifically configured to determine the second target image sub-block according to any one of the following formulas, Idx ₂ + idx, %N/(N/2))x2 + (l- Idx _l %N /(N / 4)%2))χ N /4 ; Idx ₂

+ ((l - ldx _x %N/(N/2))x2 + (ldx _x %N / (N / 4) %2)) xN/4; W3⁄4 = /^/NxN + ((l-/ x ₁ N/(N/2))x2 + (l-/^ N/(N/4) 2))xN/4; where Idx ₂ is used for a third index information indicating a position of the second target image sub-block in the target image block, / representing the second index information, N being according to a size of the target image block and the target image sub-block The size is ok.  The decoder according to claim 53 or 54, wherein the processor is specifically configured to determine the first target image sub-block if the motion information of the second target image sub-block is empty The motion information is zero motion information.  The decoder according to any one of claims 52 to 55, wherein the processor is specifically configured to determine the first motion information according to motion information of a third target image sub-block, where The third target image sub-block is a target image sub-block located at a preset position in the target image block, or  The motion information of the third target image sub-block has the highest frequency of occurrence in the motion information of the target image sub-block.  The decoder according to claim 56, wherein the processor is further configured to use, according to the reference image of the motion information of the third target image sub-block, the target image, and the target image block. And scaling the motion information of the third target image sub-block according to a time domain distance relationship of the reference image;  And determining the first motion information according to the motion information of the third target image sub-block after the scaling process. The decoder according to any one of claims 52 to 57, wherein the target image block includes at least two target image sub-blocks, and When the optimal information is the first motion information, the processor is further configured to perform deblocking filtering processing on pixels located near a boundary between the target image sub-blocks.  The decoder according to any one of claims 51 to 58, wherein the second motion information includes time motion information and spatial motion information, and  The processor is specifically configured to determine, according to the first motion information and the second motion information, a motion information list, so that the first motion information is located at a top of the motion information list; or  And configured to determine, according to the first motion information and the second motion information, a motion information list, so that the first motion information is located at a last position of the motion information list; or  And configured to determine, according to the first motion information and the second motion information, a motion information list, such that the first motion information is located between the spatial motion information in the motion information list and the time motion information.  The decoder according to any one of claims 51 to 59, wherein the first index information includes a first symbol for indicating whether the optimal motion information is the first motion information And a second symbol for indicating a position of the optimal motion information in the motion list, and  The processor is specifically configured to perform an arithmetic decoding process on the first symbol according to a first context model, and perform an arithmetic decoding process on the second symbol according to the second context model, to perform processing according to the arithmetic decoding. The first index information determines the optimal motion information from the motion information list, wherein the first context model is different from the second context model.