[go: up one dir, main page]

WO2012023281A1 - Procédé de décodage d'image vidéo, procédé de codage d'image vidéo, appareil de décodage d'image vidéo, appareil de codage d'image vidéo - Google Patents

Procédé de décodage d'image vidéo, procédé de codage d'image vidéo, appareil de décodage d'image vidéo, appareil de codage d'image vidéo Download PDF

Info

Publication number
WO2012023281A1
WO2012023281A1 PCT/JP2011/004597 JP2011004597W WO2012023281A1 WO 2012023281 A1 WO2012023281 A1 WO 2012023281A1 JP 2011004597 W JP2011004597 W JP 2011004597W WO 2012023281 A1 WO2012023281 A1 WO 2012023281A1
Authority
WO
WIPO (PCT)
Prior art keywords
picture
reference list
video
decoding
pictures
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2011/004597
Other languages
English (en)
Japanese (ja)
Inventor
ビクター ワハダニア
チョンスン リム
孝啓 西
陽司 柴原
寿郎 笹井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Original Assignee
Panasonic Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Corp filed Critical Panasonic Corp
Publication of WO2012023281A1 publication Critical patent/WO2012023281A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/58—Motion compensation with long-term prediction, i.e. the reference frame for a current frame not being the temporally closest one
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation

Definitions

  • the present invention relates to a multimedia data encoding method and decoding method, and more particularly, to a moving image encoding method and decoding method using inter prediction.
  • H. 263 Non-Patent Document 1
  • MPEG-4 AVC / H. H.264 Non-Patent Document 2
  • the latest moving picture coding methods such as HEVC (High-Efficiency Video Coding) that appear in the near future are motions from previously coded pictures stored in picture memory.
  • This inter prediction process uses a single-hypothesis scheme or a multi-hypothesis scheme.
  • prediction data is obtained by performing motion compensation from one reference picture.
  • prediction data is obtained by combining data on which motion compensation has been performed from two or more reference pictures.
  • ⁇ Flexible reference picture selection> One factor that contributes to improving the coding gain is the flexible selection of reference pictures for each of the inter prediction units (eg, macroblock boundaries in H.264, etc.).
  • a reference list is created.
  • the reference list includes an ordered list of information that uniquely addresses / identifies for each of the available reference pictures. Reference pictures in the reference list are identified by a unique reference index. Therefore, flexible reference is possible by transmitting the reference index signal at the level of the inter prediction unit.
  • the reference index signal is written into the compressed video stream using variable length coding.
  • variable length coding low reference index values are represented with fewer bits than high reference index values. Therefore, the reference list should be created so that the most commonly used reference picture is placed at the top of the reference list.
  • H.264 at the start of the picture decoding process, an initial reference list is created based on the picture order of available reference pictures.
  • the picture order is a coding order (in order of time for encoding or decoding a picture) or an output order (in order of time for outputting / displaying a reconstructed picture).
  • reference list reordering commands may be signaled in the compressed video stream to further rearrange the reference list. However, such a reordering command signal consumes additional bits and reduces coding efficiency. Furthermore, reordering of the reference list increases the computational complexity in the video decoding process.
  • Hierarchical coding structure Recent video coding developments, such as the ongoing development of the HEVC video coding standard, utilize a hierarchical coding structure for design, experimentation and evaluation activities. Advantages of the hierarchical coding structure include improvement of coding efficiency, improvement of picture quality, and time expandability of moving picture frame rate.
  • pictures are arranged at a temporal level. In the time level arrangement, the highest time level means the lowest frame rate, and the lower the time level, the higher the frame rate. Examples of hierarchical coding structures are shown in FIGS.
  • the coding gain is improved by coding a picture with a high time level with a better image quality than that of a picture with a low time level (for example, by reducing the number of times of application of quantization). It is also improved by performing motion compensated inter prediction from higher temporal level reference pictures more frequently than lower temporal level reference pictures.
  • it is generally more efficient to predict the current picture 122 from the reference pictures 110, 112, 114, and 120 (located at the same or higher time level).
  • ITU-T Recommendation H. 263 video coding for low bit rate communication
  • ITU-T Recommendation H. H.264 Advanced Video Coding for Generic Audiovisual Services
  • the conventional reference list creation method has a problem that a reference list suitable for a hierarchical coding structure cannot be efficiently created.
  • a reference list reordering command needs to be included in the compressed video stream. Such commands consume additional bits in the compressed video stream and unnecessarily increase computational complexity to execute the reference list reordering command.
  • the present invention provides a moving picture decoding method and a moving picture capable of efficiently creating a reference list suitable for a hierarchical coding structure so that consumption of bits in a picture header is suppressed and calculation is not complicated.
  • An object is to provide an image encoding method.
  • a moving picture decoding method for decoding an encoded moving picture stream in which a moving picture is encoded using motion prediction, and includes: Analyzing the first parameter indicating the level from the header of the encoded picture, creating a reference list for decoding the target picture according to the hierarchical reference list creation method using the temporal level, using the reference list, A motion prediction of a block composed of a plurality of samples in the target picture is performed.
  • a video encoding method for generating an encoded video stream by encoding a video using motion prediction.
  • a method for determining a temporal level of a picture, writing a first parameter indicating the temporal level in a header of an encoded picture, and encoding a target picture according to a hierarchical reference list creation method using the temporal level A reference list is created, motion detection of a block composed of a plurality of pixels in the target picture is performed using the reference list, and motion prediction of the block is performed using the reference list.
  • the present invention can be implemented not only as such a moving image decoding method or a moving image encoding method, but also for executing each step included in such a moving image decoding method or a moving image encoding method. It can be realized as a moving picture decoding apparatus or a moving picture encoding apparatus including the processing unit.
  • the present invention can also be realized as a program that causes a computer to execute each step included in the video decoding method or the video encoding method.
  • Such a program can be distributed via a non-temporary recording medium such as a CD-ROM (Compact Disc Only Memory) or a transmission medium such as the Internet.
  • FIG. 1 is a diagram illustrating an example of a hierarchical coding structure.
  • FIG. 2 is a diagram illustrating another example of the hierarchical coding structure.
  • FIG. 3 is a flowchart showing the moving image encoding processing according to Embodiment 1 of the present invention.
  • FIG. 4 is a flowchart showing moving image decoding processing according to Embodiment 1 of the present invention.
  • FIG. 5 is a block diagram showing an example of a moving picture encoding apparatus according to Embodiment 1 of the present invention.
  • FIG. 6 is a block diagram showing an example of a moving picture decoding apparatus according to Embodiment 1 of the present invention.
  • FIG. 1 is a diagram illustrating an example of a hierarchical coding structure.
  • FIG. 2 is a diagram illustrating another example of the hierarchical coding structure.
  • FIG. 3 is a flowchart showing the moving image encoding processing according to Embodiment 1 of the present invention.
  • FIG. 4 is a
  • FIG. 7 is a flowchart showing a first example of the reference list creation process in the moving picture coding and decoding process according to Embodiment 1 of the present invention.
  • FIG. 8 is a flowchart showing a second example of the reference list creation process in the moving picture coding process according to Embodiment 1 of the present invention.
  • FIG. 9 is a flowchart showing a second example of the reference list creation process in the video decoding process according to Embodiment 1 of the present invention.
  • FIG. 10 is a flowchart showing a third example of the reference list creation process in the video encoding process according to Embodiment 1 of the present invention.
  • FIG. 11 is a flowchart showing a third example of the reference list creation process in the video decoding process according to Embodiment 1 of the present invention.
  • FIG. 12 is a flowchart showing a fourth example of the reference list creation process in the moving picture coding process according to Embodiment 1 of the present invention.
  • FIG. 13 is a flowchart showing a fourth example of the reference list creation process in the video decoding process according to Embodiment 1 of the present invention.
  • FIG. 14 is a flowchart showing a first example of a reference list creation process for a picture using single hypothesis inter prediction according to Embodiment 1 of the present invention.
  • FIG. 12 is a flowchart showing a fourth example of the reference list creation process in the moving picture coding process according to Embodiment 1 of the present invention.
  • FIG. 13 is a flowchart showing a fourth example of the reference list creation process in the video decoding process according to Embodiment 1 of the present invention.
  • FIG. 14 is a flowchar
  • FIG. 15 is a flowchart showing a first example of a reference list creation process for a picture using bi-hypothesis inter prediction according to Embodiment 1 of the present invention.
  • FIG. 16 is a flowchart showing a second example of the reference list creation process for pictures using single hypothesis inter prediction according to Embodiment 1 of the present invention.
  • FIG. 17 is a flowchart showing a second example of the reference list creation process for a picture using bi-hypothesis inter prediction according to Embodiment 1 of the present invention.
  • FIG. 18 is a diagram illustrating an example of the position of the time level information in the compressed moving image stream.
  • FIG. 19 is a diagram illustrating an example of the position of the reference list reordering parameter in the compressed video stream.
  • FIG. 20 is a diagram illustrating an example of the position of the time reference selection parameter in the compressed video stream.
  • FIG. 21 is an overall configuration diagram of a content supply system that realizes a content distribution service.
  • FIG. 22 is an overall configuration diagram of a digital broadcasting system.
  • FIG. 23 is a block diagram illustrating a configuration example of a television.
  • FIG. 24 is a block diagram illustrating a configuration example of an information reproducing / recording unit that reads and writes information from and on a recording medium that is an optical disk.
  • FIG. 25 is a diagram illustrating a structure example of a recording medium that is an optical disk.
  • FIG. 26A shows an example of a mobile phone.
  • FIG. 26B is a block diagram illustrating a configuration example of a mobile phone.
  • FIG. 26A shows an example of a mobile phone.
  • FIG. 27 is a diagram showing a structure of multiplexed data.
  • FIG. 28 is a diagram schematically showing how each stream is multiplexed in the multiplexed data.
  • FIG. 29 is a diagram showing in more detail how the video stream is stored in the PES packet sequence.
  • FIG. 30 is a diagram illustrating the structure of TS packets and source packets in multiplexed data.
  • FIG. 31 is a diagram illustrating a data structure of the PMT.
  • FIG. 32 shows the internal structure of multiplexed data information.
  • FIG. 33 shows the internal structure of stream attribute information.
  • FIG. 34 is a diagram showing steps for identifying video data.
  • FIG. 35 is a block diagram illustrating a configuration example of an integrated circuit that realizes the moving image encoding method and the moving image decoding method according to each embodiment.
  • FIG. 36 is a diagram showing a configuration for switching the driving frequency.
  • FIG. 37 is a diagram showing steps for identifying video data and switching between driving frequencies.
  • FIG. 38 is a diagram showing an example of a look-up table in which video data standards are associated with drive frequencies.
  • (A) of FIG. 39 is a figure which shows an example of the structure which shares the module of a signal processing part.
  • FIG. 39B is a diagram illustrating another example of a configuration for sharing a module of the signal processing unit.
  • FIG. 1 and 2 show examples of two types of hierarchical coding structures that are generally used to improve coding efficiency.
  • the smallest time index indicates the highest time level, and an increase in time index corresponds to a decrease in time level.
  • This correspondence is used in this specification for consistency of description. The same as this correspondence is HEVC, H. H.264 MVC extension and H.264 It is also used in the syntax element temporal_id employed in the H.264 SVC extension. It will be apparent to those skilled in the art that a correspondence relationship in which a large time level index indicates a high time level can also be used for the same purpose.
  • picture type I is a picture encoded using intra prediction
  • picture type P is a picture encoded using single-hypothesis inter-prediction
  • Picture type B is a picture encoded using dual-hypothesis inter-prediction.
  • a B picture stored in the picture memory as a reference picture for inter-frame prediction is indicated as a Bs picture.
  • An index value of an encoding order time order of pictures to be encoded and decoded
  • an index value of an output order time order in which a reconstructed picture is output / displayed
  • the large order index value indicates a time later than the small order index value.
  • FIG. 1 shows hierarchical encoding of random access type.
  • the random access type hierarchical coding a compressed moving image is correctly decoded and reconstructed from any I picture.
  • Such a random access hierarchical coding structure provides high coding efficiency compared to other coding structures.
  • FIG. 2 shows a low-delay type hierarchical coding. In the low-delay type hierarchical encoding, the reconstructed picture is output as soon as the decoding process is completed.
  • the target picture 122 (temporal index 1) has a reference picture 110, 112, 114, and 120 (temporal) rather than inter prediction from the reference pictures 130 and 132 (temporal index 2).
  • inter prediction from indexes 0 and 1) it is encoded more efficiently.
  • the target picture 222 (temporal index 1) is more predictive than the reference pictures 230, 232, and 234 (temporal index 2).
  • predicting from time indexes 0 and 1) By predicting from time indexes 0 and 1), encoding is more efficient.
  • FIG. 3 is a flowchart showing a moving image encoding process according to Embodiment 1 of the present invention.
  • the module 300 determines the time level of the picture by assigning time level information to the picture to be encoded and further obtaining the time level information of the previously stored picture stored in the picture memory.
  • An example of time level information is the time index described above.
  • the time level information corresponds to the first parameter.
  • the time level information is assigned to the target picture based on the temporal relationship between the target picture and other neighboring pictures in the same sequence.
  • the reference list used in the inter prediction process is created using the temporal level and the picture order information according to the hierarchical reference list creation method.
  • the current picture is encoded using information in the reference list.
  • the current picture is decoded and stored in picture memory as a reference picture for a picture to be encoded later.
  • FIG. 4 is a flowchart showing a video decoding process according to Embodiment 1 of the present invention.
  • the module 400 analyzes time level information from the header of the compressed video stream.
  • FIG. 18 shows an example of the position of the time level information in the compressed video stream.
  • a reference list used in inter prediction is created using temporal levels and picture order information.
  • the reference list created by the module 402 includes reference picture information arranged in the same manner as the reference list created by the encoding process of the module 302.
  • the module 404 uses the reference list created in the module 402 to decode the target picture from the compressed video stream.
  • FIG. 5 is a block diagram showing an example of a moving picture coding apparatus according to Embodiment 1 of the present invention.
  • the moving image encoding apparatus includes a time level determination unit 500, a subtraction unit 502, a residual encoding unit 504, an entropy encoding unit 506, a residual decoding unit 508, an adding unit 510, and a filter unit 512.
  • the time level determination unit 500 acquires time relationship information of the video sequence D500 and determines a time index D502 of the target picture.
  • the subtraction unit 502 acquires the original sample D504 of the current picture, subtracts it with the inter prediction sample D528, and outputs the residual value D506.
  • the residual encoding unit 504 acquires a residual value D506 and outputs a compressed residual coefficient D508.
  • the compression residual coefficient D508 is entropy encoded in the compressed moving image D510 by the entropy encoding unit 506.
  • the residual decoding unit 508 acquires the compressed residual coefficient D508 and outputs a decoded residual value D514.
  • the adding unit 510 obtains the residual value D514, adds it to the value of the inter prediction sample D528, and reconstructs the image sample D516.
  • the filter unit 512 reads the reconstructed image sample D516 and outputs a filtered image sample D518.
  • the filtered image sample D518 is stored in the memory unit 514.
  • the reference list creation unit 516 reads the time index D502 of the target picture and the time index D522 of the picture stored in the memory unit 514, and outputs the reference list D524.
  • the motion detection unit 518 reads the reference list D524 and the image sample D520 from the memory unit 514, and estimates the motion vector and the reference index.
  • the motion detection unit 518 outputs the motion vector, the reference index, and the image sample D526 to the motion interpolation unit 520.
  • the motion interpolation unit 520 reads a motion vector, a reference index, and an image sample D526, and outputs an inter prediction sample D528.
  • FIG. 6 is a block diagram showing an example of a video decoding apparatus according to Embodiment 1 of the present invention.
  • the moving picture decoding apparatus includes an entropy decoding unit 600, a residual decoding unit 602, an adding unit 604, a filter unit 606, a memory unit 608, a reference list creating unit 610, and a motion interpolation unit 612.
  • the entropy decoding unit 600 reads a compressed moving image stream D600 and outputs a compression residual coefficient D602.
  • the entropy decoding unit 600 further analyzes the time index D614 of the target picture from the header of the compressed video stream D600.
  • the entropy decoding unit 600 further decodes the motion vector and the reference index D616 from the compressed video stream D600.
  • the residual decoding unit 602 reads the compressed residual coefficient D602 and outputs a decoded residual value D604.
  • the adding unit 604 reads the residual value D604 and the inter prediction sample D620, and outputs a reconstructed sample D606.
  • the filter unit 606 reads the reconstructed sample D606 and outputs a filtered sample D608.
  • the reference list creation unit 610 reads the time index D614 of the target picture and the time index D612 of the picture stored in the memory unit 608, and outputs a reference list D618.
  • the motion interpolation unit 612 reads the motion vector, the reference index D616, the reference list D618, and the stored image sample D610, and then outputs an inter prediction sample D620.
  • FIG. 7 is a flowchart showing a first example of the reference list creation process in the moving picture coding and decoding process according to the first embodiment of the present invention.
  • a set of reference pictures is selected from a set of reconstructed pictures stored in a picture memory according to a selection criterion.
  • This set of reference pictures corresponds to a plurality of active reference pictures.
  • Selection criteria are, for example, H.264 described in section 8.2.5 of the MPEG-4 Part 10 specification.
  • H.264 reference picture creation processing In module 702, a reference list indicating reference pictures in a specific order is created using both temporal level information and picture order information of reference pictures. Each reference picture shown in the reference list is identified by a unique reference index.
  • FIG. 8 is a flowchart showing a second example of the reference list creation process in the moving picture coding process according to Embodiment 1 of the present invention.
  • a set of reference pictures is selected from a set of reconstructed pictures stored in picture memory according to a selection criterion.
  • the module 802 creates an initial reference list indicating the reference pictures in a specific order using both the time level information and the picture order information of the reference pictures.
  • the module 804 determines whether or not to reorder the initial reference list. It may be necessary to reorder for a number of reasons, for example to encode a scene of a video more efficiently or for specific application characteristics. .
  • module 806 rearranges the order of the reference picture identifiers in the reference list. Thereafter, the module 808 writes the reference list reordering parameter in the compressed video stream header.
  • the reference list reordering parameter includes information (for example, a flag) indicating whether or not to reorder the reference list.
  • the reference list reordering parameter further includes information indicating a method / procedure (reorder procedure) for reordering the reference list.
  • FIG. 19 shows an example of the position of the reference list reordering parameter in the compressed video stream.
  • H An example of a H.264 reference list reordering method is in section 8.2.2.3 of the MPEG-4 Part 10 specification.
  • FIG. 9 is a flowchart showing a second example of the reference list creation process in the video decoding process according to Embodiment 1 of the present invention.
  • the reference list reordering parameter is analyzed from the header of the compressed video stream.
  • the module 902 selects a reference picture set from the set of reconstructed pictures stored in the picture memory according to the same selection criteria as in the encoding process (module 800 in FIG. 8).
  • an initial reference list is created using both time level information and picture order information.
  • module 906 determines whether to reorder the reference list based on information included in the reference picture reordering parameter.
  • module 908 When reordering the reference list, module 908 reorders the reference list according to the reorder procedure indicated by the reference picture reordering parameter.
  • the reference list created in the encoding process of FIG. 8 and the reference list created in the decoding process of FIG. 9 have the same reference picture order.
  • FIG. 10 is a flowchart showing a third example of the reference list creation process in the moving picture coding process according to Embodiment 1 of the present invention.
  • Module 1000 determines whether time level selection criteria are applied. When the temporal level selection criterion is applied, the module 1002 excludes the reconstructed pictures stored in the picture memory that have a temporal index larger than the index of the target picture (ie, the temporal level is low). A reference picture set is selected from the pictures. On the other hand, if the temporal level selection criterion is not applied, the module 1004 selects a set of reference pictures from the reconstructed pictures stored in the picture memory without considering the temporal index. For example, a time level selection criterion is useful when creating a compressed video stream having time expandability.
  • a reference list indicating the selected reference pictures in a specific order is created using both temporal level information and picture order information of the reference pictures.
  • a temporal reference selection parameter is written to the header of the compressed video stream to indicate whether temporal level selection criteria are applied.
  • the time reference selection parameter corresponds to the second parameter.
  • the time reference selection parameter is, for example, a flag indicating that “0” indicates that a time level selection criterion is not applied and “1” indicates that a time level selection criterion is applied.
  • FIG. 20 shows an example of the position of the time reference selection parameter in the compressed video stream.
  • FIG. 20A shows the position of the time reference selection parameter in the sequence header of the compressed video stream.
  • FIG. 20B shows the position of the temporal reference selection parameter in the picture header of the compressed video stream.
  • FIG. 20C shows that the time reference selection parameter is obtained from a profile parameter, a level parameter, or a lookup table based on both the profile parameter and the level parameter, encoded in the sequence header of the compressed video stream. Indicates that
  • FIG. 11 is a flowchart showing a third example of the reference list creation process in the video decoding process according to the first embodiment of the present invention.
  • the time reference selection parameter is analyzed from the header of the compressed video stream.
  • the module 1102 determines whether a time level selection criterion is applied based on the time reference selection parameter.
  • the module 1104 may select a reference picture from among the reconstructed pictures stored in the picture memory except for a picture having a temporal index larger than the temporal index of the target picture. Select. If the temporal level selection criteria are not applied, the module 1106 selects a reference picture from among the reconstructed pictures stored in the picture memory without considering the temporal index.
  • the module 1108 creates a reference list using the temporal level information and the picture order information of the reference picture.
  • the reference list created in the encoding process of FIG. 10 and the reference list created in the decoding process of FIG. 11 have the same reference picture order.
  • FIG. 12 is a flowchart showing a fourth example of the reference list creation process in the video encoding process according to Embodiment 1 of the present invention.
  • Module 1200 determines whether a time level selection criterion is applied. When the temporal level selection criterion is applied, the module 1202 may select a reference picture from among the reconstructed pictures stored in the picture memory except for a picture having a temporal index larger than the temporal index of the target picture. Select a set. On the other hand, if the temporal level selection criterion is not applied, the module 1204 selects a set of reference pictures from the reconstructed pictures stored in the picture memory without considering the temporal index.
  • an initial reference list that indicates the selected reference pictures in a particular order is created using both the temporal level information and picture order information of the reference pictures.
  • the module 1208 determines whether or not to reorder the initial reference list. When reordering a reference list reference list, module 1210 rearranges the order of reference picture identifiers in the reference list.
  • the module 1212 writes the time reference selection parameter in the header of the compressed video stream, and the module 1214 writes the reference list reordering parameter in the header of the compressed video stream.
  • FIG. 13 is a flowchart showing a fourth example of the reference list creation process in the video decoding process according to Embodiment 1 of the present invention.
  • the time reference selection parameter is analyzed from the header of the compressed video stream.
  • Module 1302 analyzes reference list reordering parameters from the header of the compressed video stream.
  • Module 1304 determines whether a time level selection criterion is applied based on the time reference selection parameter. When the temporal level selection criterion is applied, the module 1306 may select a reference picture from among the reconstructed pictures stored in the picture memory except for a picture having a temporal index larger than the temporal index of the target picture. Select.
  • the module 1308 selects a reference picture from among the reconstructed pictures stored in the picture memory without considering the temporal index.
  • module 1310 creates an initial reference list using both temporal level information and picture order information of the reference picture.
  • the module 1312 determines whether to reorder the reference list based on information provided in the reference picture reordering parameters.
  • module 1314 reorders the reference list according to the reorder procedure indicated by the reference picture reordering parameter.
  • the reference list generated in the encoding process of FIG. 12 and the reference list generated in the decoding process of FIG. 13 have the same reference picture order.
  • the reference list creation steps (modules 702, 802, 904, 1006, 1108, 1206, and 1310) are arranged in a special order. Output one or two reference lists containing reference picture identifiers. In the case of a picture using single hypothesis inter prediction, one reference list is created. In the case of a picture using bi-hypothesis inter prediction, two reference lists are created. Next, the reference list generation step will be described in detail.
  • FIG. 14 is a flowchart showing a first example of a reference list creation process for a picture using single hypothesis inter prediction according to Embodiment 1 of the present invention.
  • module 1400 all reference pictures are arranged in ascending order of time index (ie, starting from the highest time level representing the lowest frame rate and continuing to the lowest time level representing the highest frame rate). ).
  • One or more pictures may be associated with a single temporal index.
  • Module 1402 further reorders each of the reference picture subsets having the same temporal index in descending order of the picture order index.
  • module 1404 creates a reference list that includes reference picture identifiers in the order ordered by the reorder step (module 1402).
  • FIG. 15 is a flowchart showing a first example of a reference list creation process for a picture using bi-hypothesis inter prediction according to Embodiment 1 of the present invention.
  • the module 1500 classifies all reference pictures into a first group composed of pictures having a picture order index smaller than the picture order index of the target picture and a second group composed of all remaining pictures. .
  • Module 1502 arranges the first group of reference pictures in ascending order of temporal index.
  • the module 1504 reorders each of the reference picture subsets having the same temporal index among the first group of reference pictures in descending order of the picture order index.
  • Module 1506 arranges the second group of reference pictures in ascending order of temporal index.
  • the module 1508 reorders each of the reference picture subsets having the same temporal index among the second group of reference pictures in ascending order of the picture order index.
  • the module 1510 creates a first reference list including identifiers indicating reference pictures of the first group in the order arranged by the first group reordering step (module 1504).
  • Module 1512 then adds additional identifiers indicating the second group of reference pictures to the first reference list in the order ordered by the second group reorder step (module 1508).
  • the module 1514 creates a second reference list that includes identifiers indicating reference pictures of the second group in the order arranged by the second group reorder step (module 1508).
  • Module 1516 then adds additional identifiers indicating the first group of reference pictures to the second reference list in the order ordered by the first group reorder step (module 1504).
  • FIG. 16 is a flowchart showing a second example of a reference list creation process for a picture using single hypothesis inter prediction according to Embodiment 1 of the present invention.
  • the module 1600 classifies all reference pictures into a first group made up of pictures having a time index less than or equal to the time index of the current picture, and a second group made up of all the remaining pictures.
  • the module 1602 arranges the first group of reference pictures in descending order of the picture order index.
  • the module 1604 arranges the second group of reference pictures in descending order of the picture order index.
  • the module 1606 creates a reference list including identifiers indicating reference pictures of the first group in the order arranged in the first group alignment step (module 1602).
  • Module 1608 adds additional identifiers indicating the second group of reference pictures to the reference list in the order that they were sorted in the second group alignment step (module 1604).
  • FIG. 17 is a flowchart showing a second example of reference list creation processing for a picture using bi-hypothesis inter prediction according to Embodiment 1 of the present invention.
  • the module 1700 classifies all reference pictures into four groups.
  • the first group is made up of pictures having a picture order index smaller than the picture order index of the target picture and having a time index less than or equal to the time index of the target picture.
  • the second group is made up of pictures having a picture order index smaller than the picture order index of the target picture and having a time index larger than the time index of the target picture.
  • the third group is made up of pictures having a picture order index larger than the picture order index of the target picture and having a time index equal to or less than the target time index.
  • the fourth group is composed of all the remaining pictures.
  • the module 1702 arranges the first group of reference pictures in descending order of the picture order index.
  • the module 1704 arranges the second group of reference pictures in descending order of the picture order index.
  • Module 1706 arranges the third group of reference pictures in ascending order of picture order index.
  • the module 1708 arranges the fourth group of reference pictures in ascending order of the picture order index.
  • the module 1710 creates a first reference list that includes identifiers indicating the reference pictures of the first group in the order arranged in the first group alignment step (module 1702).
  • Module 1712 adds additional identifiers indicating the second group of reference pictures to the first reference list in the order in which they were aligned in the second group alignment step (module 1704).
  • Module 1714 adds additional identifiers indicating the third group of reference pictures to the first reference list in the order in which they were aligned in the third group alignment step (module 1706).
  • Module 1716 adds additional identifiers indicating the fourth group of reference pictures to the first reference list in the order aligned in the fourth group alignment step (module 1708).
  • module 1718 creates a second reference list that includes identifiers indicating the reference pictures of the third group in the order arranged in the third group reorder step (module 1706).
  • Module 1720 adds additional identifiers indicating the fourth group of reference pictures to the second reference list in the order aligned in the fourth group alignment step (module 1708).
  • Module 1722 adds additional identifiers indicating the first group of reference pictures to the second reference list in the order in which they were aligned in the first group alignment step (module 1702).
  • Module 1724 adds additional identifiers indicating the second group of reference pictures to the second reference list in the order in which they were aligned in the second group alignment step (module 1704).
  • coding efficiency can be improved. This is because, in the present embodiment, it is not necessary to include a reference list reordering command in the compressed video stream.
  • the calculation for reordering the reference list after the reference list is first generated is not required, thereby reducing the calculation complexity. can do.
  • the storage medium may be any medium that can record a program, such as a magnetic disk, an optical disk, a magneto-optical disk, an IC card, and a semiconductor memory.
  • FIG. 21 is a diagram showing an overall configuration of a content supply system ex100 that realizes a content distribution service.
  • a communication service providing area is divided into desired sizes, and base stations ex106, ex107, ex108, ex109, and ex110, which are fixed wireless stations, are installed in each cell.
  • This content supply system ex100 includes a computer ex111, a PDA (Personal Digital Assistant) ex112, a camera ex113, a mobile phone ex114, a game machine ex115 via the Internet ex101, the Internet service provider ex102, the telephone network ex104, and the base stations ex106 to ex110. Etc. are connected.
  • PDA Personal Digital Assistant
  • each device may be directly connected to the telephone network ex104 without going from the base station ex106, which is a fixed wireless station, to ex110.
  • the devices may be directly connected to each other via short-range wireless or the like.
  • the camera ex113 is a device that can shoot moving images such as a digital video camera
  • the camera ex116 is a device that can shoot still images and movies such as a digital camera.
  • the mobile phone ex114 is a GSM (Global System for Mobile Communications) system, a CDMA (Code Division Multiple Access) system, a W-CDMA (Wideband-Code Division Multiple Access) system, an LTE (Long Terminal Evolution) system, an HSPA ( High-speed-Packet-Access) mobile phone or PHS (Personal-Handyphone System), etc.
  • GSM Global System for Mobile Communications
  • CDMA Code Division Multiple Access
  • W-CDMA Wideband-Code Division Multiple Access
  • LTE Long Terminal Evolution
  • HSPA High-speed-Packet-Access
  • PHS Personal-Handyphone System
  • the camera ex113 and the like are connected to the streaming server ex103 through the base station ex109 and the telephone network ex104, thereby enabling live distribution and the like.
  • the content for example, music live video
  • the streaming server ex103 stream-distributes the content data transmitted to the requested client.
  • the client include a computer ex111, a PDA ex112, a camera ex113, a mobile phone ex114, a game machine ex115, and the like that can decode the encoded data.
  • Each device that has received the distributed data decodes and reproduces the received data.
  • the captured data may be encoded by the camera ex113, the streaming server ex103 that performs data transmission processing, or may be shared with each other.
  • the decryption processing of the distributed data may be performed by the client, the streaming server ex103, or may be shared with each other.
  • still images and / or moving image data captured by the camera ex116 may be transmitted to the streaming server ex103 via the computer ex111.
  • the encoding process in this case may be performed by any of the camera ex116, the computer ex111, and the streaming server ex103, or may be performed in a shared manner.
  • these encoding / decoding processes are generally performed in the computer ex111 and the LSI ex500 included in each device.
  • the LSI ex500 may be configured as a single chip or a plurality of chips.
  • moving image encoding / decoding software may be incorporated in some recording medium (CD-ROM, flexible disk, hard disk, etc.) that can be read by computer ex111 and the like, and encoding / decoding processing may be performed using the software. Good.
  • moving image data acquired by the camera may be transmitted. The moving image data at this time is data encoded by the LSI ex500 included in the mobile phone ex114.
  • the streaming server ex103 may be a plurality of servers or a plurality of computers, and may process, record, and distribute data in a distributed manner.
  • the encoded data can be received and reproduced by the client.
  • the information transmitted by the user can be received, decrypted and reproduced in real time by the client, and even a user who does not have special rights or facilities can realize personal broadcasting.
  • At least one of the video encoding device or the video decoding device of the above embodiment may be incorporated in the digital broadcasting system ex200. it can.
  • the broadcast station ex201 multiplexed data obtained by multiplexing music data and the like on video data is transmitted to a communication or satellite ex202 via radio waves.
  • This video data is data encoded by the moving image encoding method described in the above embodiment.
  • the broadcasting satellite ex202 transmits a radio wave for broadcasting, and this radio wave is received by a home antenna ex204 capable of receiving satellite broadcasting.
  • the received multiplexed data is decoded and reproduced by a device such as the television (receiver) ex300 or the set top box (STB) ex217.
  • the reader / recorder ex 218 also reads and decodes multiplexed data recorded on a recording medium ex 215 such as a DVD or BD, or encodes a video signal on the recording medium ex 215 and, in some cases, multiplexes and writes it with a music signal. It is possible to implement the video decoding device or the video encoding device described in the embodiment. In this case, the reproduced video signal is displayed on the monitor ex219, and the video signal can be reproduced in another device or system using the recording medium ex215 on which the multiplexed data is recorded.
  • a moving picture decoding apparatus may be mounted in a set-top box ex217 connected to a cable ex203 for cable television or an antenna ex204 for satellite / terrestrial broadcasting, and this may be displayed on the monitor ex219 of the television. At this time, the moving picture decoding apparatus may be incorporated in the television instead of the set top box.
  • FIG. 23 is a diagram illustrating a television (receiver) ex300 that uses the moving picture decoding method and the moving picture encoding method described in the above embodiment.
  • the television ex300 obtains or outputs multiplexed data in which audio data is multiplexed with video data via the antenna ex204 or the cable ex203 that receives the broadcast, and demodulates the received multiplexed data.
  • the modulation / demodulation unit ex302 that modulates multiplexed data to be transmitted to the outside, and the demodulated multiplexed data is separated into video data and audio data, or the video data and audio data encoded by the signal processing unit ex306 Is provided with a multiplexing / demultiplexing unit ex303.
  • the television ex300 outputs a decoded audio signal, and an audio signal processing unit ex304 including an audio signal processing unit ex304 and a video signal processing unit ex305 that decode audio data and video data, respectively, or encode information of each.
  • the television ex300 includes an interface unit ex317 including an operation input unit ex312 that receives an input of a user operation.
  • the television ex300 includes a control unit ex310 that performs overall control of each unit, and a power supply circuit unit ex311 that supplies power to each unit.
  • the interface unit ex317 includes a bridge unit ex313 connected to an external device such as a reader / recorder ex218, a recording unit ex216 such as an SD card, and an external recording unit such as a hard disk.
  • a driver ex315 for connecting to a medium, a modem ex316 for connecting to a telephone network, and the like may be included.
  • the recording medium ex216 is capable of electrically recording information by using a nonvolatile / volatile semiconductor memory element to be stored.
  • Each part of the television ex300 is connected to each other via a synchronous bus.
  • the television ex300 receives a user operation from the remote controller ex220 or the like, and demultiplexes the multiplexed data demodulated by the modulation / demodulation unit ex302 by the multiplexing / demultiplexing unit ex303 based on the control of the control unit ex310 having a CPU or the like. Furthermore, the television ex300 decodes the separated audio data by the audio signal processing unit ex304, and decodes the separated video data by the video signal processing unit ex305 using the decoding method described in the above embodiment. The decoded audio signal and video signal are output from the output unit ex309 to the outside.
  • these signals may be temporarily stored in the buffers ex318, ex319, etc. so that the audio signal and the video signal are reproduced in synchronization.
  • the television ex300 may read multiplexed data from recording media ex215 and ex216 such as a magnetic / optical disk and an SD card, not from broadcasting.
  • recording media ex215 and ex216 such as a magnetic / optical disk and an SD card, not from broadcasting.
  • the television ex300 encodes an audio signal or a video signal and transmits the signal to the outside or to a recording medium.
  • the television ex300 receives a user operation from the remote controller ex220 or the like, and encodes an audio signal with the audio signal processing unit ex304 based on the control of the control unit ex310, and the video signal with the video signal processing unit ex305 in the above embodiment.
  • Encoding is performed using the described encoding method.
  • the encoded audio signal and video signal are multiplexed by the multiplexing / demultiplexing unit ex303 and output to the outside.
  • these signals may be temporarily stored in the buffers ex320, ex321, etc. so that the audio signal and the video signal are synchronized.
  • a plurality of buffers ex318, ex319, ex320, and ex321 may be provided as illustrated, or one or more buffers may be shared.
  • data may be stored in the buffer as a buffer material that prevents system overflow and underflow, for example, between the modulation / demodulation unit ex302 and the multiplexing / demultiplexing unit ex303.
  • the television ex300 has a configuration for receiving AV input of a microphone and a camera, and performs encoding processing on the data acquired from them. Also good.
  • the television ex300 has been described as a configuration capable of the above-described encoding processing, multiplexing, and external output. However, these processing cannot be performed, and only the reception, decoding processing, and external output can be performed. It may be.
  • the decoding process or the encoding process may be performed by either the television ex300 or the reader / recorder ex218, or the television ex300 and the reader / Recorder ex218 may share each other.
  • FIG. 24 shows the configuration of the information reproducing / recording unit ex400 when data is read from or written to the optical disk.
  • the information reproducing / recording unit ex400 includes elements ex401, ex402, ex403, ex404, ex405, ex406, and ex407 described below.
  • the optical head ex401 irradiates a laser spot on the recording surface of the recording medium ex215 that is an optical disk to write information, and detects reflected light from the recording surface of the recording medium ex215 to read the information.
  • the modulation recording unit ex402 electrically drives a semiconductor laser built in the optical head ex401 and modulates the laser beam according to the recording data.
  • the reproduction demodulator ex403 amplifies the reproduction signal obtained by electrically detecting the reflected light from the recording surface by the photodetector built in the optical head ex401, separates and demodulates the signal component recorded on the recording medium ex215, and is necessary To play back information.
  • the buffer ex404 temporarily holds information to be recorded on the recording medium ex215 and information reproduced from the recording medium ex215.
  • the disk motor ex405 rotates the recording medium ex215.
  • the servo controller ex406 moves the optical head ex401 to a predetermined information track while controlling the rotational drive of the disk motor ex405, and performs a laser spot tracking process.
  • the system control unit ex407 controls the entire information reproduction / recording unit ex400.
  • the system control unit ex407 uses various kinds of information held in the buffer ex404, and generates and adds new information as necessary, and the modulation recording unit ex402, the reproduction demodulation unit This is realized by recording / reproducing information through the optical head ex401 while operating the ex403 and the servo control unit ex406 in a coordinated manner.
  • the system control unit ex407 is composed of, for example, a microprocessor, and executes these processes by executing a read / write program.
  • the optical head ex401 has been described as irradiating a laser spot.
  • a configuration in which higher-density recording is performed using near-field light may be used.
  • FIG. 25 shows a schematic diagram of a recording medium ex215 that is an optical disk.
  • Guide grooves grooves
  • address information indicating the absolute position on the disc is recorded in advance on the information track ex230 by changing the shape of the groove.
  • This address information includes information for specifying the position of the recording block ex231 that is a unit for recording data, and the recording block is specified by reproducing the information track ex230 and reading the address information in a recording or reproducing apparatus.
  • the recording medium ex215 includes a data recording area ex233, an inner peripheral area ex232, and an outer peripheral area ex234.
  • the area used for recording user data is the data recording area ex233, and the inner circumference area ex232 and the outer circumference area ex234 arranged on the inner or outer circumference of the data recording area ex233 are used for specific purposes other than user data recording. Used.
  • the information reproducing / recording unit ex400 reads / writes encoded audio data, video data, or multiplexed data obtained by multiplexing these data with respect to the data recording area ex233 of the recording medium ex215.
  • an optical disk such as a single-layer DVD or BD has been described as an example.
  • the present invention is not limited to these, and an optical disk having a multilayer structure and capable of recording other than the surface may be used.
  • an optical disc with a multi-dimensional recording / reproducing structure such as recording information using light of different wavelengths in the same place on the disc, or recording different layers of information from various angles. It may be.
  • the car ex210 having the antenna ex205 can receive data from the satellite ex202 and the like, and the moving image can be reproduced on a display device such as the car navigation ex211 that the car ex210 has.
  • the configuration of the car navigation ex211 may be, for example, a configuration in which a GPS receiving unit is added in the configuration illustrated in FIG. 23, and the same may be considered for the computer ex111, the mobile phone ex114, and the like.
  • FIG. 26 is a diagram showing the mobile phone ex114 using the moving picture decoding method and the moving picture encoding method described in the above embodiment.
  • the mobile phone ex114 includes an antenna ex350 for transmitting and receiving radio waves to and from the base station ex110, a camera unit ex365 capable of capturing video and still images, a video captured by the camera unit ex365, a video received by the antenna ex350, and the like Is provided with a display unit ex358 such as a liquid crystal display for displaying the decoded data.
  • the mobile phone ex114 further includes a main body unit having an operation key unit ex366, an audio output unit ex357 such as a speaker for outputting audio, an audio input unit ex356 such as a microphone for inputting audio, a captured video, It is an interface unit with a memory unit ex367 that stores encoded data or decoded data such as a still image, recorded audio, or received video, still image, and mail, or a recording medium that similarly stores data.
  • a slot portion ex364 is provided.
  • the mobile phone ex114 has a power supply circuit part ex361, an operation input control part ex362, and a video signal processing part ex355 with respect to a main control part ex360 that comprehensively controls each part of the main body including the display part ex358 and the operation key part ex366.
  • a camera interface unit ex363, an LCD (Liquid Crystal Display) control unit ex359, a modulation / demodulation unit ex352, a multiplexing / demultiplexing unit ex353, an audio signal processing unit ex354, a slot unit ex364, and a memory unit ex367 are connected to each other via a bus ex370. ing.
  • the power supply circuit unit ex361 starts up the mobile phone ex114 in an operable state by supplying power from the battery pack to each unit.
  • the cellular phone ex114 converts the audio signal collected by the audio input unit ex356 in the voice call mode into a digital audio signal by the audio signal processing unit ex354 based on the control of the main control unit ex360 having a CPU, a ROM, a RAM, and the like. Then, this is subjected to spectrum spread processing by the modulation / demodulation unit ex352, digital-analog conversion processing and frequency conversion processing are performed by the transmission / reception unit ex351, and then transmitted via the antenna ex350.
  • the mobile phone ex114 also amplifies the received data received via the antenna ex350 in the voice call mode, performs frequency conversion processing and analog-digital conversion processing, performs spectrum despreading processing by the modulation / demodulation unit ex352, and performs voice signal processing unit After being converted into an analog audio signal by ex354, this is output from the audio output unit ex357.
  • the text data of the e-mail input by operating the operation key unit ex366 of the main unit is sent to the main control unit ex360 via the operation input control unit ex362.
  • the main control unit ex360 performs spread spectrum processing on the text data in the modulation / demodulation unit ex352, performs digital analog conversion processing and frequency conversion processing in the transmission / reception unit ex351, and then transmits the text data to the base station ex110 via the antenna ex350.
  • almost the reverse process is performed on the received data and output to the display unit ex358.
  • the video signal processing unit ex355 compresses and encodes the video signal supplied from the camera unit ex365 by the moving image encoding method described in the above embodiment.
  • the encoded video data is sent to the multiplexing / demultiplexing unit ex353.
  • the audio signal processing unit ex354 encodes the audio signal picked up by the audio input unit ex356 while the camera unit ex365 images a video, a still image, etc., and sends the encoded audio data to the multiplexing / separating unit ex353. To do.
  • the multiplexing / demultiplexing unit ex353 multiplexes the encoded video data supplied from the video signal processing unit ex355 and the encoded audio data supplied from the audio signal processing unit ex354 by a predetermined method, and is obtained as a result.
  • the multiplexed data is subjected to spread spectrum processing by the modulation / demodulation unit (modulation / demodulation circuit unit) ex352, digital-analog conversion processing and frequency conversion processing by the transmission / reception unit ex351, and then transmitted via the antenna ex350.
  • the multiplexing / demultiplexing unit ex353 separates the multiplexed data into a video data bit stream and an audio data bit stream, and the video data encoded via the synchronization bus ex370 is a video signal processing unit.
  • the encoded audio data is supplied to the audio signal processing unit ex354.
  • the video signal processing unit ex355 decodes the video signal by decoding using a video decoding method corresponding to the video encoding method shown in the above embodiment, and from the display unit ex358 via the LCD control unit ex359, for example, Video and still images included in the moving image file linked to the home page are displayed.
  • the audio signal processing unit ex354 decodes the audio signal, and the audio is output from the audio output unit ex357.
  • the transmission / reception terminal having both an encoder and a decoder there are three types of terminals such as the mobile phone ex114, such as a transmission terminal having only an encoder and a receiving terminal having only a decoder, as in the television ex300.
  • the implementation form of can be considered.
  • multiplexed data in which music data is multiplexed with video data is received and transmitted.
  • character data related to video is multiplexed. It may be converted data, or may be video data itself instead of multiplexed data.
  • the moving picture encoding method or the moving picture decoding method described in the above embodiment can be used in any of the above-described devices and systems, and by doing so, the effects described in the above embodiment can be obtained. Can be obtained.
  • multiplexed data obtained by multiplexing audio data or the like with video data is configured to include identification information indicating which standard the video data conforms to.
  • identification information indicating which standard the video data conforms to.
  • FIG. 27 is a diagram showing a structure of multiplexed data.
  • multiplexed data is obtained by multiplexing one or more of a video stream, an audio stream, a presentation graphics stream (PG), and an interactive graphics stream.
  • the video stream indicates the main video and sub-video of the movie
  • the audio stream (IG) indicates the main audio portion of the movie and the sub-audio mixed with the main audio
  • the presentation graphics stream indicates the subtitles of the movie.
  • the main video indicates a normal video displayed on the screen
  • the sub-video is a video displayed on a small screen in the main video.
  • the interactive graphics stream indicates an interactive screen created by arranging GUI components on the screen.
  • the video stream is encoded by the moving image encoding method or apparatus shown in the above embodiments, or the moving image encoding method or apparatus conforming to the conventional standards such as MPEG-2, MPEG4-AVC, and VC-1. ing.
  • the audio stream is encoded by a method such as Dolby AC-3, Dolby Digital Plus, MLP, DTS, DTS-HD, or linear PCM.
  • Each stream included in the multiplexed data is identified by PID. For example, 0x1011 for video streams used for movie images, 0x1100 to 0x111F for audio streams, 0x1200 to 0x121F for presentation graphics, 0x1400 to 0x141F for interactive graphics streams, 0x1B00 to 0x1B1F are assigned to video streams used for sub-pictures, and 0x1A00 to 0x1A1F are assigned to audio streams used for sub-audio mixed with the main audio.
  • FIG. 28 is a diagram schematically showing how multiplexed data is multiplexed.
  • a video stream ex235 composed of a plurality of video frames and an audio stream ex238 composed of a plurality of audio frames are converted into PES packet sequences ex236 and ex239, respectively, and converted into TS packets ex237 and ex240.
  • the data of the presentation graphics stream ex241 and interactive graphics ex244 are converted into PES packet sequences ex242 and ex245, respectively, and further converted into TS packets ex243 and ex246.
  • the multiplexed data ex247 is configured by multiplexing these TS packets into one stream.
  • FIG. 29 shows in more detail how the video stream is stored in the PES packet sequence.
  • the first row in FIG. 29 shows a video frame sequence of the video stream.
  • the second level shows a PES packet sequence.
  • a plurality of Video Presentation Units in the video stream are divided into pictures, B pictures, and P pictures, and are stored in the payload of the PES packet.
  • Each PES packet has a PES header, and a PTS (Presentation Time-Stamp) that is a display time of a picture and a DTS (Decoding Time-Stamp) that is a decoding time of a picture are stored in the PES header.
  • PTS Presentation Time-Stamp
  • DTS Decoding Time-Stamp
  • FIG. 30 shows the format of the TS packet that is finally written in the multiplexed data.
  • the TS packet is a 188-byte fixed-length packet composed of a 4-byte TS header having information such as a PID for identifying a stream and a 184-byte TS payload for storing data.
  • the PES packet is divided and stored in the TS payload.
  • a 4-byte TP_Extra_Header is added to a TS packet, forms a 192-byte source packet, and is written in multiplexed data.
  • TP_Extra_Header information such as ATS (Arrival_Time_Stamp) is described.
  • ATS indicates the transfer start time of the TS packet to the PID filter of the decoder.
  • Source packets are arranged in the multiplexed data as shown in the lower part of FIG. 30, and a number incremented from the head of the multiplexed data is called an SPN (source packet number).
  • TS packets included in the multiplexed data include PAT (Program Association Table), PMT (Program Map Table), PCR (Program Clock Reference), and the like in addition to each stream such as video / audio / caption.
  • PAT indicates what the PID of the PMT used in the multiplexed data is, and the PID of the PAT itself is registered as 0.
  • the PMT has the PID of each stream such as video / audio / subtitles included in the multiplexed data and the attribute information of the stream corresponding to each PID, and has various descriptors related to the multiplexed data.
  • the descriptor includes copy control information for instructing permission / non-permission of copying of multiplexed data.
  • the PCR corresponds to the ATS in which the PCR packet is transferred to the decoder. Contains STC time information.
  • FIG. 31 is a diagram for explaining the data structure of the PMT in detail.
  • a PMT header describing the length of data included in the PMT is arranged at the head of the PMT.
  • a plurality of descriptors related to multiplexed data are arranged.
  • the copy control information and the like are described as descriptors.
  • a plurality of pieces of stream information regarding each stream included in the multiplexed data are arranged.
  • the stream information includes a stream descriptor in which a stream type, a stream PID, and stream attribute information (frame rate, aspect ratio, etc.) are described to identify a compression codec of the stream.
  • the multiplexed data is recorded together with the multiplexed data information file.
  • the multiplexed data information file is management information of multiplexed data, has one-to-one correspondence with the multiplexed data, and includes multiplexed data information, stream attribute information, and an entry map.
  • the multiplexed data information includes a system rate, a reproduction start time, and a reproduction end time as shown in FIG.
  • the system rate indicates a maximum transfer rate of multiplexed data to a PID filter of a system target decoder described later.
  • the ATS interval included in the multiplexed data is set to be equal to or less than the system rate.
  • the playback start time is the PTS of the first video frame of the multiplexed data
  • the playback end time is set by adding the playback interval for one frame to the PTS of the video frame at the end of the multiplexed data.
  • attribute information about each stream included in the multiplexed data is registered for each PID.
  • the attribute information has different information for each video stream, audio stream, presentation graphics stream, and interactive graphics stream.
  • the video stream attribute information includes the compression codec used to compress the video stream, the resolution of the individual picture data constituting the video stream, the aspect ratio, and the frame rate. It has information such as how much it is.
  • the audio stream attribute information includes the compression codec used to compress the audio stream, the number of channels included in the audio stream, the language supported, and the sampling frequency. With information. These pieces of information are used for initialization of the decoder before the player reproduces it.
  • the stream type included in the PMT is used.
  • video stream attribute information included in the multiplexed data information is used.
  • the video encoding shown in each of the above embodiments for the stream type or video stream attribute information included in the PMT.
  • FIG. 34 shows steps of the moving picture decoding method according to the present embodiment.
  • step exS100 the stream type included in the PMT or the video stream attribute information included in the multiplexed data information is acquired from the multiplexed data.
  • step exS101 it is determined whether or not the stream type or the video stream attribute information indicates multiplexed data generated by the moving picture encoding method or apparatus described in the above embodiments. To do.
  • step exS102 the above embodiments are performed. Decoding is performed by the moving picture decoding method shown in the form.
  • the conventional information Decoding is performed by a moving image decoding method compliant with the standard.
  • the moving picture encoding method or apparatus or the moving picture decoding method or apparatus described in this embodiment can be used in any of the above-described devices and systems.
  • FIG. 35 shows the configuration of an LSI ex500 that is made into one chip.
  • the LSI ex500 includes elements ex501, ex502, ex503, ex504, ex505, ex506, ex507, ex508, and ex509 described below, and each element is connected via a bus ex510.
  • the power supply circuit unit ex505 is activated to an operable state by supplying power to each unit when the power supply is on.
  • the LSI ex500 when performing the encoding process, performs the microphone ex117 and the camera ex113 by the AV I / O ex509 based on the control of the control unit ex501 including the CPU ex502, the memory controller ex503, the stream controller ex504, the drive frequency control unit ex512, and the like.
  • the AV signal is input from the above.
  • the input AV signal is temporarily stored in an external memory ex511 such as SDRAM.
  • the accumulated data is divided into a plurality of times as appropriate according to the processing amount and the processing speed and sent to the signal processing unit ex507, and the signal processing unit ex507 encodes an audio signal and / or video. Signal encoding is performed.
  • the encoding process of the video signal is the encoding process described in the above embodiments.
  • the signal processing unit ex507 further performs processing such as multiplexing the encoded audio data and the encoded video data according to circumstances, and outputs the result from the stream I / Oex 506 to the outside.
  • the output multiplexed data is transmitted to the base station ex107 or written to the recording medium ex215. It should be noted that data should be temporarily stored in the buffer ex508 so as to be synchronized when multiplexing.
  • the memory ex511 is described as an external configuration of the LSI ex500.
  • a configuration included in the LSI ex500 may be used.
  • the number of buffers ex508 is not limited to one, and a plurality of buffers may be provided.
  • the LSI ex500 may be made into one chip or a plurality of chips.
  • control unit ex501 includes the CPU ex502, the memory controller ex503, the stream controller ex504, the drive frequency control unit ex512, and the like, but the configuration of the control unit ex501 is not limited to this configuration.
  • the signal processing unit ex507 may further include a CPU.
  • the CPU ex502 may be configured to include a signal processing unit ex507 or, for example, an audio signal processing unit that is a part of the signal processing unit ex507.
  • the control unit ex501 is configured to include a signal processing unit ex507 or a CPU ex502 having a part thereof.
  • LSI LSI
  • IC system LSI
  • super LSI ultra LSI depending on the degree of integration
  • the method of circuit integration is not limited to LSI, and implementation with a dedicated circuit or a general-purpose processor is also possible.
  • An FPGA Field Programmable Gate Array
  • a reconfigurable processor that can reconfigure the connection and setting of circuit cells inside the LSI may be used.
  • FIG. 36 shows a configuration ex800 in the present embodiment.
  • the drive frequency switching unit ex803 sets the drive frequency high when the video data is generated by the moving image encoding method or apparatus described in the above embodiments.
  • the decoding processing unit ex801 that executes the moving picture decoding method described in each of the above embodiments is instructed to decode the video data.
  • the video data is video data compliant with the conventional standard, compared to the case where the video data is generated by the moving picture encoding method or apparatus shown in the above embodiments, Set the drive frequency low. Then, it instructs the decoding processing unit ex802 compliant with the conventional standard to decode the video data.
  • the drive frequency switching unit ex803 includes a CPU ex502 and a drive frequency control unit ex512 in FIG.
  • the decoding processing unit ex801 that executes the moving picture decoding method shown in each of the above embodiments and the decoding processing unit ex802 that complies with the conventional standard correspond to the signal processing unit ex507 in FIG.
  • the CPU ex502 identifies which standard the video data conforms to.
  • the drive frequency control unit ex512 sets the drive frequency.
  • the signal processing unit ex507 decodes the video data.
  • the identification of the video data for example, it is conceivable to use the identification information described in the third embodiment.
  • the identification information is not limited to that described in Embodiment 3, and any information that can identify which standard the video data conforms to may be used. For example, it is possible to identify which standard the video data conforms to based on an external signal that identifies whether the video data is used for a television or a disk. In some cases, identification may be performed based on such an external signal.
  • the selection of the driving frequency in the CPU ex502 may be performed based on, for example, a look-up table in which video data standards and driving frequencies are associated with each other as shown in FIG. The look-up table is stored in the buffer ex508 or the internal memory of the LSI, and the CPU ex502 can select the drive frequency by referring to the look-up table.
  • FIG. 37 shows steps for executing the method of the present embodiment.
  • the signal processing unit ex507 acquires identification information from the multiplexed data.
  • the CPU ex502 identifies whether the video data is generated by the encoding method or apparatus described in each of the above embodiments based on the identification information.
  • the CPU ex502 sends a signal for setting the drive frequency high to the drive frequency control unit ex512. Then, the drive frequency control unit ex512 sets a high drive frequency.
  • step exS203 the CPU ex502 drives the signal for setting the drive frequency low. This is sent to the frequency control unit ex512. Then, in the drive frequency control unit ex512, the drive frequency is set to be lower than that in the case where the video data is generated by the encoding method or apparatus described in the above embodiments.
  • the power saving effect can be further enhanced by changing the voltage applied to the LSI ex500 or the device including the LSI ex500 in conjunction with the switching of the driving frequency. For example, when the drive frequency is set low, it is conceivable that the voltage applied to the LSI ex500 or the device including the LSI ex500 is set low as compared with the case where the drive frequency is set high.
  • the setting method of the driving frequency may be set to a high driving frequency when the processing amount at the time of decoding is large, and to a low driving frequency when the processing amount at the time of decoding is small. It is not limited to the method.
  • the amount of processing for decoding video data compliant with the MPEG4-AVC standard is larger than the amount of processing for decoding video data generated by the moving picture encoding method or apparatus described in the above embodiments. It is conceivable that the setting of the driving frequency is reversed to that in the case described above.
  • the method for setting the drive frequency is not limited to the configuration in which the drive frequency is lowered.
  • the voltage applied to the LSIex500 or the apparatus including the LSIex500 is set high.
  • the driving of the CPU ex502 is stopped.
  • the CPU ex502 is temporarily stopped because there is room in processing. Is also possible. Even when the identification information indicates that the video data is generated by the moving image encoding method or apparatus described in each of the above embodiments, if there is a margin for processing, the CPU ex502 is temporarily driven. It can also be stopped. In this case, it is conceivable to set the stop time shorter than in the case where the video data conforms to the conventional standards such as MPEG-2, MPEG4-AVC, and VC-1.
  • a plurality of video data that conforms to different standards may be input to the above-described devices and systems such as a television and a mobile phone.
  • the signal processing unit ex507 of the LSI ex500 needs to support a plurality of standards in order to be able to decode even when a plurality of video data complying with different standards is input.
  • the signal processing unit ex507 corresponding to each standard is used individually, there is a problem that the circuit scale of the LSI ex500 increases and the cost increases.
  • a decoding processing unit for executing the moving picture decoding method shown in each of the above embodiments and a decoding conforming to a standard such as MPEG-2, MPEG4-AVC, or VC-1
  • the processing unit is partly shared.
  • An example of this configuration is shown as ex900 in FIG.
  • the moving picture decoding method shown in each of the above embodiments and the moving picture decoding method compliant with the MPEG4-AVC standard are processed in processes such as entropy coding, inverse quantization, deblocking filter, and motion compensation. Some contents are common.
  • the decoding processing unit ex902 corresponding to the MPEG4-AVC standard is shared, and for the other processing content unique to the present invention not corresponding to the MPEG4-AVC standard, the dedicated decoding processing unit ex901 is used.
  • Configuration is conceivable.
  • a dedicated decoding processing unit ex901 is used for inter prediction, and any of other entropy coding, deblocking filter, and inverse quantization is used.
  • the decoding processing unit for executing the moving picture decoding method described in each of the above embodiments is shared, and the processing content unique to the MPEG4-AVC standard May be configured to use a dedicated decoding processing unit.
  • ex1000 in FIG. 39 (b) shows another example in which processing is partially shared.
  • a dedicated decoding processing unit ex1001 corresponding to processing content unique to the present invention
  • a dedicated decoding processing unit ex1002 corresponding to processing content specific to other conventional standards
  • a moving picture decoding method of the present invention A common decoding processing unit ex1003 corresponding to processing contents common to other conventional video decoding methods is used.
  • the dedicated decoding processing units ex1001 and ex1002 are not necessarily specialized in the processing content specific to the present invention or other conventional standards, and may be capable of executing other general-purpose processing.
  • the configuration of the present embodiment can be implemented by LSI ex500.
  • the circuit scale of the LSI is reduced, and the cost is reduced. It is possible to reduce.
  • the image encoding method and image decoding method according to the present invention can be used in, for example, a television receiver, a digital video recorder, a car navigation system, a mobile phone, a digital camera, or a digital video camera.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

L'invention porte sur un procédé de décodage d'image vidéo, dans lequel une liste de référence appropriée pour une structure de codage hiérarchique est créée de manière efficace, de telle sorte qu'une consommation de bits dans un en-tête d'image est empêchée, et un calcul ne deviendra pas compliqué. Le procédé de décodage d'image vidéo est un procédé de décodage d'un flux d'images vidéo codé qui est le résultat du codage d'une image vidéo à l'aide d'une prédiction de mouvement, et le procédé analyse un premier paramètre indiquant un niveau de temps à partir de l'en-tête d'une image codée, crée une liste de référence pour le décodage de l'image à décoder selon un procédé de création de liste de référence hiérarchique qui utilise le niveau de temps, et exécute une prédiction de mouvement d'un bloc composé d'une pluralité d'échantillons dans l'image à décoder, à l'aide de la liste de référence.
PCT/JP2011/004597 2010-08-17 2011-08-16 Procédé de décodage d'image vidéo, procédé de codage d'image vidéo, appareil de décodage d'image vidéo, appareil de codage d'image vidéo Ceased WO2012023281A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US37437810P 2010-08-17 2010-08-17
US61/374,378 2010-08-17

Publications (1)

Publication Number Publication Date
WO2012023281A1 true WO2012023281A1 (fr) 2012-02-23

Family

ID=45604950

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2011/004597 Ceased WO2012023281A1 (fr) 2010-08-17 2011-08-16 Procédé de décodage d'image vidéo, procédé de codage d'image vidéo, appareil de décodage d'image vidéo, appareil de codage d'image vidéo

Country Status (1)

Country Link
WO (1) WO2012023281A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015019798A1 (fr) * 2013-08-09 2015-02-12 ソニー株式会社 Appareil de transmission, procédé de transmission, appareil de réception, procédé de réception, appareil de codage et procédé de codage
JP2015046726A (ja) * 2013-08-27 2015-03-12 ソニー株式会社 送信装置、送信方法、受信装置および受信方法
JP2015097418A (ja) * 2013-08-09 2015-05-21 ソニー株式会社 送信装置、送信方法、受信装置、受信方法、符号化装置および符号化方法
CN105556966A (zh) * 2013-09-24 2016-05-04 索尼公司 编码设备、编码方法、发送设备以及接收设备
JPWO2014002898A1 (ja) * 2012-06-29 2016-05-30 ソニー株式会社 復号装置および復号方法
JPWO2015053157A1 (ja) * 2013-10-11 2017-03-09 ソニー株式会社 送信装置、送信方法および受信装置
JPWO2015064287A1 (ja) * 2013-11-01 2017-03-09 ソニー株式会社 送信装置、送信方法、受信装置および受信方法
CN109451320A (zh) * 2013-06-05 2019-03-08 太阳专利托管公司 图像编码方法、图像解码方法、图像编码装置以及图像解码装置
JP2019062566A (ja) * 2018-12-13 2019-04-18 ソニー株式会社 送信装置、送信方法、受信装置および受信方法
JP2020048224A (ja) * 2019-12-19 2020-03-26 ソニー株式会社 送信装置、送信方法、受信装置および受信方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005011285A1 (fr) * 2003-07-24 2005-02-03 Nippon Telegraph And Telephone Corporation Dispositif de codage d'image, dispositif de decodage d'image, procede de codage d'image, procede de decodage d'image, programme de codage d'image, programme de decodage d'image, support d'enregistrement contenant le programme de codage d'image et support d'enregistrement contenant le programme de decodage d'image

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005011285A1 (fr) * 2003-07-24 2005-02-03 Nippon Telegraph And Telephone Corporation Dispositif de codage d'image, dispositif de decodage d'image, procede de codage d'image, procede de decodage d'image, programme de codage d'image, programme de decodage d'image, support d'enregistrement contenant le programme de codage d'image et support d'enregistrement contenant le programme de decodage d'image

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
HEIKO SCHWARZ ET AL.: "Hierarchical B pictures", JOINT VIDEO TEAM (JVT) OF ISO/IEC MPEG & ITU-T VCEG (ISO/IEC JTC1/SC29/WG11 AND ITU-T SG16 Q.6) 16TH MEETING: POZNAN, PL, DOCUMENT: JVT-P014, ITU-T, July 2005 (2005-07-01) *
HEIKO SCHWARZ ET AL.: "Overview of the Scalable Video Coding Extension of the H.264/AVC Standard", IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, vol. 17, no. 9, September 2007 (2007-09-01), pages 1103 - 1120 *
HIDEAKI KIMATA ET AL.: "Hierarchical Reference Picture Selection Method for Temporal Scalability beyond H.264", 2004 IEEE INTERNATIONAL CONFERENCE ON MULTIMEDIA AND EXPO, 2004. ICME '04, vol. 1, 27 June 2004 (2004-06-27), pages 181 - 184 *
HIDEAKI KIMATA ET AL.: "Jikan Scalable Fugoka eno Sansho Gazo Sentaku Yosoku Fugoka no Tekiyo Hoho", PICTURE CODING SYMPOSIUM OF JAPAN (PCSJ2003) DAI 18 KAI SYMPOSIUM SHIRYO, 14 November 2003 (2003-11-14), pages 55 - 56 *
HIDEAKI KIMATA ET AL.: "Kaisoteki Sansho Gazo Sentaku Hoshiki ni yoru Jikan Scalable Eizo Fugoka", THE TRANSACTIONS OF THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS A, vol. J88-A, no. 3, March 2005 (2005-03-01), pages 397 - 410 *

Cited By (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2014002898A1 (ja) * 2012-06-29 2016-05-30 ソニー株式会社 復号装置および復号方法
RU2752695C2 (ru) * 2012-06-29 2021-07-30 Вилос Медиа Интернэшнл Лимитед Устройство декодирования и способ декодирования
US11399197B2 (en) 2012-06-29 2022-07-26 Velos Media, Llc Encoding device and encoding method with setting and encoding of reference information
JPWO2014002899A1 (ja) * 2012-06-29 2016-05-30 ソニー株式会社 符号化装置および符号化方法
CN109451321A (zh) * 2013-06-05 2019-03-08 太阳专利托管公司 图像编码方法、图像解码方法、图像编码装置以及图像解码装置
CN109451320A (zh) * 2013-06-05 2019-03-08 太阳专利托管公司 图像编码方法、图像解码方法、图像编码装置以及图像解码装置
CN109451321B (zh) * 2013-06-05 2023-06-02 太阳专利托管公司 图像编码方法、图像解码方法、图像编码装置以及图像解码装置
CN109451320B (zh) * 2013-06-05 2023-06-02 太阳专利托管公司 图像编码方法、图像解码方法、图像编码装置以及图像解码装置
US11368744B2 (en) 2013-08-09 2022-06-21 Sony Corporation Device and associated method for using layer description and decoding syntax in multi-layer video
JP7338745B2 (ja) 2013-08-09 2023-09-05 ソニーグループ株式会社 受信装置
JP2022126774A (ja) * 2013-08-09 2022-08-30 ソニーグループ株式会社 受信装置
JP2015057875A (ja) * 2013-08-09 2015-03-26 ソニー株式会社 送信装置、送信方法、受信装置、受信方法、符号化装置および符号化方法
EP3032834A4 (fr) * 2013-08-09 2017-05-10 Sony Corporation Appareil de transmission, procédé de transmission, appareil de réception, procédé de réception, appareil de codage et procédé de codage
JP7095775B2 (ja) 2013-08-09 2022-07-05 ソニーグループ株式会社 送信装置および送信方法
CN105340283A (zh) * 2013-08-09 2016-02-17 索尼公司 发送装置、发送方法、接收装置、接收方法、编码装置以及编码方法
JP2018142984A (ja) * 2013-08-09 2018-09-13 ソニー株式会社 送信装置および送信方法
JP2015097418A (ja) * 2013-08-09 2015-05-21 ソニー株式会社 送信装置、送信方法、受信装置、受信方法、符号化装置および符号化方法
RU2674890C2 (ru) * 2013-08-09 2018-12-13 Сони Корпорейшн Устройство передачи, способ передачи, устройство приема, способ приема, устройство кодирования и способ кодирования
EP3585060A3 (fr) * 2013-08-09 2020-01-15 Sony Corporation Apparei et méthode de recepton pour la vidéo codée par couches temporelles
WO2015019798A1 (fr) * 2013-08-09 2015-02-12 ソニー株式会社 Appareil de transmission, procédé de transmission, appareil de réception, procédé de réception, appareil de codage et procédé de codage
JP2021132396A (ja) * 2013-08-09 2021-09-09 ソニーグループ株式会社 送信装置および送信方法
EP4354889A3 (fr) * 2013-08-09 2024-04-24 Sony Group Corporation Dispositif d'émission, procédé d'émission, dispositif de réception, procédé de réception, dispositif de codage et procédé de codage
US10306296B2 (en) 2013-08-09 2019-05-28 Sony Corporation Device and method for transmission and reception for performing hierarchical encoding of image data
CN105340283B (zh) * 2013-08-09 2019-06-18 索尼公司 发送装置、发送方法、接收装置、接收方法、编码装置以及编码方法
US11128901B2 (en) 2013-08-27 2021-09-21 Sony Corporation Transmission apparatus, transmission method, reception apparatus, and reception method
JP2015046726A (ja) * 2013-08-27 2015-03-12 ソニー株式会社 送信装置、送信方法、受信装置および受信方法
CN105453574A (zh) * 2013-08-27 2016-03-30 索尼公司 发送设备、发送方法、接收设备以及接收方法
US9538211B2 (en) 2013-08-27 2017-01-03 Sony Corporation Transmission apparatus, transmission method, reception apparatus, and reception method
US11601696B2 (en) 2013-08-27 2023-03-07 Sony Group Corporation Transmission apparatus, transmission method, reception apparatus, and reception method
CN105453574B (zh) * 2013-08-27 2021-06-08 索尼公司 发送设备、发送方法、接收设备以及接收方法
US9819976B2 (en) 2013-08-27 2017-11-14 Sony Corporation Transmission apparatus, transmission method, reception apparatus, and reception method
US10250924B2 (en) 2013-08-27 2019-04-02 Sony Corporation Transmission apparatus, transmission method, reception apparatus, and reception method
US11272196B2 (en) 2013-09-24 2022-03-08 Sony Corporation Coding apparatus, coding method, transmission apparatus, and reception apparatus
US12212763B2 (en) 2013-09-24 2025-01-28 Sony Group Corporation Coding apparatus, coding method, transmission apparatus, and reception apparatus
US11758161B2 (en) 2013-09-24 2023-09-12 Sony Corporation Coding apparatus, coding method, transmission apparatus, and reception apparatus
CN105556966A (zh) * 2013-09-24 2016-05-04 索尼公司 编码设备、编码方法、发送设备以及接收设备
US10531107B2 (en) 2013-09-24 2020-01-07 Sony Corporation Coding apparatus, coding method, transmission apparatus, and reception apparatus
US11589061B2 (en) 2013-10-11 2023-02-21 Sony Group Corporation Transmission device, transmission method and reception device
US11025930B2 (en) 2013-10-11 2021-06-01 Sony Corporation Transmission device, transmission method and reception device
JP2019176528A (ja) * 2013-10-11 2019-10-10 ソニー株式会社 送信装置および送信方法
US10547857B2 (en) 2013-10-11 2020-01-28 Sony Corporation Transmission device, transmission method and reception device
JP2020115673A (ja) * 2013-10-11 2020-07-30 ソニー株式会社 送受信システムおよびその処理方法
JPWO2015053157A1 (ja) * 2013-10-11 2017-03-09 ソニー株式会社 送信装置、送信方法および受信装置
JPWO2015064287A1 (ja) * 2013-11-01 2017-03-09 ソニー株式会社 送信装置、送信方法、受信装置および受信方法
JP2019080362A (ja) * 2013-11-01 2019-05-23 ソニー株式会社 受信装置、受信方法、送信装置および送信方法
JP2021036709A (ja) * 2013-11-01 2021-03-04 ソニー株式会社 送信方法および送信装置
JP7070639B2 (ja) 2013-11-01 2022-05-18 ソニーグループ株式会社 送信方法および送信装置
JP2020014260A (ja) * 2013-11-01 2020-01-23 ソニー株式会社 送受信システムおよび送受信方法
US10225566B2 (en) 2013-11-01 2019-03-05 Sony Corporation Transmission device, transmission method, reception device, and reception method
JP2019062566A (ja) * 2018-12-13 2019-04-18 ソニー株式会社 送信装置、送信方法、受信装置および受信方法
JP2020048224A (ja) * 2019-12-19 2020-03-26 ソニー株式会社 送信装置、送信方法、受信装置および受信方法

Similar Documents

Publication Publication Date Title
JP6172485B2 (ja) 画像符号化方法及び画像符号化装置
JP6210248B2 (ja) 動画像符号化方法及び動画像符号化装置
JP6327435B2 (ja) 画像符号化方法、画像復号方法、画像符号化装置、及び、画像復号装置
JP6414712B2 (ja) 多数の参照ピクチャを用いる動画像符号化方法、動画像復号方法、動画像符号化装置、および動画像復号方法
WO2012023281A1 (fr) Procédé de décodage d'image vidéo, procédé de codage d'image vidéo, appareil de décodage d'image vidéo, appareil de codage d'image vidéo
JP5331944B2 (ja) 画像復号化方法および画像復号化装置
JP6451961B2 (ja) 復号装置
JP2013187905A (ja) 映像を符号化および復号する方法および装置
JPWO2013042359A1 (ja) 動画像符号化方法、動画像符号化装置、動画像復号化方法、および、動画像復号化装置
JP6376470B2 (ja) 画像符号化方法、画像復号方法、画像符号化装置および画像復号装置
JP6078927B2 (ja) 動画像符号化方法、動画像符号化装置、動画像復号方法、及び、動画像復号装置
KR20130140133A (ko) 영상 부호화 방법 및 영상 복호 방법
WO2013001813A1 (fr) Procédé de codage d'image, procédé de décodage d'image, dispositif de codage d'image et dispositif de décodage d'image
WO2015001762A1 (fr) Procédés de codage et de décodage d'image, dispositifs de codage et de décodage d'image, et dispositif de codage/décodage d'image
JP2018133820A (ja) 符号化方法、復号方法、符号化装置、および復号装置
JP6391018B2 (ja) 画像符号化方法、及び、画像符号化装置
WO2013073154A1 (fr) Procédé de codage et procédé de décodage
WO2012096157A1 (fr) Procédé de codage d'image, procédé de décodage d'image, dispositif de codage d'image et dispositif de décodage d'image
WO2012014458A1 (fr) Procédé de codage d'image et procédé de décodage d'image
WO2012086166A1 (fr) Procédé de codage d'image et procédé de décodage d'image
WO2013153808A1 (fr) Procédé et dispositif de décodage d'images

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11817930

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11817930

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP