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1. WO2020114394 - VIDEO ENCODING/DECODING METHOD, VIDEO ENCODER, AND VIDEO DECODER

Publication Number WO/2020/114394
Publication Date 11.06.2020
International Application No. PCT/CN2019/122710
International Filing Date 03.12.2019
IPC
H04N 19/176 2014.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
169characterised 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
17the unit being an image region, e.g. an object
176the region being a block, e.g. a macroblock
H04N 19/96 2014.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
90using coding techniques not provided for in groups H04N19/10-H04N19/85103
96Tree coding, e.g. quad-tree coding
CPC
H04N 19/176
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
169characterised 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
17the unit being an image region, e.g. an object
176the region being a block, e.g. a macroblock
H04N 19/85
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
85using pre-processing or post-processing specially adapted for video compression
H04N 19/96
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
90using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
96Tree coding, e.g. quad-tree coding
Applicants
  • 华为技术有限公司 HUAWEI TECHNOLOGIES CO., LTD. [CN]/[CN]
  • 清华大学 TSINGHUA UNIVERSITY [CN]/[CN]
Inventors
  • 余全合 YU, Quanhe
  • 郑建铧 ZHENG, Jianhua
  • 王力强 WANG, Liqiang
  • 何芸 HE, Yun
Agents
  • 北京龙双利达知识产权代理有限公司 LONGSUN LEAD IP LTD.
Priority Data
201811476154.204.12.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) VIDEO ENCODING/DECODING METHOD, VIDEO ENCODER, AND VIDEO DECODER
(FR) PROCÉDÉ DE CODAGE/DÉCODAGE VIDÉO, CODEUR VIDÉO ET DÉCODEUR VIDÉO
(ZH) 视频编解码方法、视频编码器和视频解码器
Abstract
(EN)
Disclosed are a video encoding/decoding method, a video decoder, and a video encoder. The video decoding method comprises: parsing a code stream to obtain encoding data of a block to be currently decoded and target division mode instruction information for dividing said block; determining, according to the target division mode instruction information, a target division mode for dividing said block, wherein the target division mode is an octree division mode or a division mode for fusing sub-image blocks divided by an octree; dividing, according to the target division mode, said block into a plurality of sub-blocks to be decoded; and decoding, according to the encoding data of said block, sub-blocks, in the plurality of sub-blocks to be decoded, that do not need to be further divided, to obtain decoded sub-image blocks. The present application can be implemented to improve an image block division effect during an encoding/decoding process, thereby improving the encoding/decoding efficiency.
(FR)
L'invention concerne un procédé de codage/décodage vidéo, un décodeur vidéo et un codeur vidéo. Le procédé de décodage vidéo consiste : à analyser un flux de code afin d'obtenir des données de codage d'un bloc à décoder actuellement et des informations d'instruction de mode de division cible servant à diviser ledit bloc ; à déterminer, selon les informations d'instruction de mode de division cible, un mode de division cible servant à diviser ledit bloc, le mode de division cible étant un mode de division octree ou un mode de division servant à fusionner des blocs de sous-image divisés par un octree ; à diviser, selon le mode de division cible, ledit bloc en une pluralité de sous-blocs à décoder ; et à décoder, selon les données de codage dudit bloc, des sous-blocs, dans la pluralité de sous-blocs à décoder, qui n'ont pas besoin d'être davantage divisés, afin d'obtenir des sous-blocs d'image décodés. La présente invention peut être mise en œuvre afin d'améliorer un effet de division de bloc d'image pendant un processus de codage/décodage, ce qui permet d'améliorer l'efficacité de codage/décodage.
(ZH)
本申请公开了视频编解码方法、视频解码器和视频编码器。该视频解码方法包括:解析码流,以获取当前待解码块的编码数据和对所述待解码块进行划分的目标划分方式指示信息;根据所述目标划分方式指示信息确定对所述当前待解码块进行划分的目标划分方式,其中,所述目标划分方式为八叉树划分方式或者对八叉树划分得到的子图像块进行融合的划分方式;根据所述目标划分方式将所述当前待解码块划分成多个待解码子块;根据所述当前待解码块的编码数据对所述多个待解码子块中不需要进一步划分的待解码子块进行解码,得到解码后的子图像块。实施本申请能够提高编解码过程中的图像块的划分效果,提高编解码编码效率。
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