CN109845260A - 编解码方法及装置 - Google Patents

编解码方法及装置 Download PDF

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CN109845260A
CN109845260A CN201780063959.1A CN201780063959A CN109845260A CN 109845260 A CN109845260 A CN 109845260A CN 201780063959 A CN201780063959 A CN 201780063959A CN 109845260 A CN109845260 A CN 109845260A
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CN109845260B (zh
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赵寅
杨海涛
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
    • H04N19/10—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
    • H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
    • 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
    • H04N19/184—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 bits, e.g. of the compressed video stream
    • 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
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • 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
    • 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
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/96—Tree coding, e.g. quad-tree coding

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

Abstract

本申请提供了一种编解码方法和装置，该解码方法包括：从码流中获取待解码图像中的编码树单元CTU的第一信息，所述第一信息用于指示对所述CTU进行划分后得到的CU的宽与高的比值所允许的取值范围；从所述码流中获取所述CTU的划分信息；根据所述第一信息和所述划分信息将所述CTU划分为一个或多个CU，其中，所述一个或多个CU的宽与高的比值在所述第一信息指示的所述取值范围内，所述多个CU互不重叠；对所述一个或多个CU进行解码，以得到所述一个或多个CU的重建像素。本申请能够在解码时根据该取值范围排除部分形状CU的划分，从而在码流中能够节省一些之前用于指示该部分CU划分方式的划分信息，从而节省码率。

Description

PCT国内申请，说明书已公开。

Claims (80)

  1. PCT国内申请，权利要求书已公开。
CN201780063959.1A 2017-02-06 2017-02-06 编解码方法及装置 Active CN109845260B (zh)

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PCT/CN2017/073004 WO2018141116A1 (zh) 2017-02-06 2017-02-06 编解码方法及装置

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US (1) US11095891B2 (zh)
EP (1) EP3477949B1 (zh)
JP (1) JP6745979B2 (zh)
KR (1) KR102230877B1 (zh)
CN (1) CN109845260B (zh)
ES (1) ES2963982T3 (zh)
MX (1) MX2019002383A (zh)
MY (1) MY197275A (zh)
PL (1) PL3477949T3 (zh)
WO (1) WO2018141116A1 (zh)

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CN109845260B (zh) * 2017-02-06 2021-06-22 华为技术有限公司 编解码方法及装置
CN111819857B (zh) * 2018-03-14 2024-08-23 联发科技股份有限公司 用于视频编解码的优化分割结构的方法和装置
WO2020164480A1 (en) * 2019-02-11 2020-08-20 Beijing Bytedance Network Technology Co., Ltd. Condition dependent video block partition
CN113454994B (zh) * 2019-03-21 2022-03-01 三星电子株式会社 用于对具有针对每个块形状设置的块尺寸的视频进行编码/解码的方法和装置
US11677969B2 (en) * 2019-03-22 2023-06-13 Tencent America LLC Method and apparatus for video coding
CN113711611B (zh) * 2019-04-19 2024-03-19 字节跳动有限公司 用于变换跳过模式中的系数编解码的方法、装置和介质
CN113906753B (zh) 2019-04-24 2023-12-01 字节跳动有限公司 编解码视频的量化残差差分脉冲编解码调制表示的约束
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JP6745979B2 (ja) 2020-08-26
US20190166367A1 (en) 2019-05-30
ES2963982T3 (es) 2024-04-03
US11095891B2 (en) 2021-08-17
EP3477949A4 (en) 2019-07-03
CN109845260B (zh) 2021-06-22
EP3477949A1 (en) 2019-05-01
EP3477949B1 (en) 2023-08-30
WO2018141116A1 (zh) 2018-08-09
MX2019002383A (es) 2019-07-08
JP2019530306A (ja) 2019-10-17
PL3477949T3 (pl) 2024-02-19
KR20190028525A (ko) 2019-03-18
MY197275A (en) 2023-06-08
KR102230877B1 (ko) 2021-03-22

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