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CN111543059A - 图像预测方法、装置以及编解码器 - Google Patents

图像预测方法、装置以及编解码器 Download PDF

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CN111543059A
CN111543059A CN201880084937.8A CN201880084937A CN111543059A CN 111543059 A CN111543059 A CN 111543059A CN 201880084937 A CN201880084937 A CN 201880084937A CN 111543059 A CN111543059 A CN 111543059A
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CN111543059B (zh
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马祥
杨海涛
陈焕浜
高山
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • 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
    • H04N19/56—Motion estimation with initialisation of the vector search, e.g. estimating a good candidate to initiate a search
    • 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
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
    • 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
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
    • 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
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/182—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a pixel
    • 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
    • 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
    • H04N19/513—Processing of motion vectors
    • 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
    • H04N19/513—Processing of motion vectors
    • H04N19/517—Processing of motion vectors by encoding
    • H04N19/52—Processing of motion vectors by encoding by predictive encoding
    • 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
    • H04N19/523—Motion estimation or motion compensation with sub-pixel accuracy
    • 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
    • H04N19/577—Motion compensation with bidirectional frame interpolation, i.e. using B-pictures
    • 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
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Image Processing (AREA)
  • Color Television Systems (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Image Analysis (AREA)

Abstract

本申请提供了一种图像预测方法、装置以及编解码器。该方法包括：获取当前图像块的初始运动信息；基于所述初始运动信息和当前图像块的位置确定N个前向参考块的位置和N个后向参考块的位置；基于匹配代价准则，从M对参考块的位置中确定一对参考块的位置为当前图像块的目标前向参考块的位置和目标后向参考块的位置，每对参考块的位置包括一个前向参考块的位置和一个后向参考块的位置，且针对每对参考块的位置，第一位置偏移与第二位置偏移成镜像关系；基于所述目标前向参考块的像素值和所述目标后向参考块的像素值，得到所述当前图像块的像素值的预测值。本申请在提高图像预测的准确性的同时，能降低图像预测的复杂度。

Description

PCT国内申请，说明书已公开。

Claims (48)

  1. PCT国内申请，权利要求书已公开。
CN201880084937.8A 2017-12-31 2018-12-27 图像预测方法、装置以及编解码器 Active CN111543059B (zh)

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CN201711494274.0A CN109996081B (zh) 2017-12-31 2017-12-31 图像预测方法、装置以及编解码器
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EP (2) EP4362464A3 (zh)
JP (3) JP2021508213A (zh)
KR (4) KR102627496B1 (zh)
CN (5) CN117336504A (zh)
AU (2) AU2018395081B2 (zh)
BR (1) BR112020012914A2 (zh)
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TW202318876A (zh) 2023-05-01
KR20200101986A (ko) 2020-08-28
US20250016358A1 (en) 2025-01-09
KR20230033021A (ko) 2023-03-07
EP4362464A3 (en) 2024-05-29
RU2020125254A (ru) 2022-01-31
KR102627496B1 (ko) 2024-01-18
US20200396478A1 (en) 2020-12-17
EP3734976A1 (en) 2020-11-04
JP7712977B2 (ja) 2025-07-24
RU2020125254A3 (zh) 2022-01-31
CN119520823A (zh) 2025-02-25
JP2025128147A (ja) 2025-09-02
EP3734976A4 (en) 2021-02-03
CN109996081B (zh) 2023-09-12
JP2021508213A (ja) 2021-02-25
CN117336504A (zh) 2024-01-02
CN109996081A (zh) 2019-07-09
AU2023204122A1 (en) 2023-07-13
AU2023204122B2 (en) 2025-02-20
CN119520822A (zh) 2025-02-25
AU2018395081B2 (en) 2023-03-30
AU2018395081A1 (en) 2020-08-13
SG11202006258VA (en) 2020-07-29
WO2019129130A1 (zh) 2019-07-04
TWI791723B (zh) 2023-02-11
CN111543059B (zh) 2024-10-29
JP2023103277A (ja) 2023-07-26
KR102503943B1 (ko) 2023-02-24
KR20240011263A (ko) 2024-01-25
TW201931857A (zh) 2019-08-01
US11528503B2 (en) 2022-12-13
EP4362464A2 (en) 2024-05-01
CA3087405A1 (en) 2019-07-04
BR112020012914A2 (pt) 2020-12-08
KR20250117469A (ko) 2025-08-04
US12069294B2 (en) 2024-08-20
US20230232036A1 (en) 2023-07-20
KR102838837B1 (ko) 2025-07-24
TWI828507B (zh) 2024-01-01

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