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1. WO2020140215 - INTRA-FRAME CHROMATICITY PREDICTION METHOD AND DEVICE, AND COMPUTER STORAGE MEDIUM

Publication Number WO/2020/140215
Publication Date 09.07.2020
International Application No. PCT/CN2019/070148
International Filing Date 02.01.2019
IPC
H04N 19/11 2014.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
102characterised by the element, parameter or selection affected or controlled by the adaptive coding
103Selection of coding mode or of prediction mode
11among a plurality of spatial predictive coding modes
CPC
H04N 19/11
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
102characterised by the element, parameter or selection affected or controlled by the adaptive coding
103Selection of coding mode or of prediction mode
11among a plurality of spatial predictive coding modes
Applicants
  • OPPO广东移动通信有限公司 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD. [CN]/[CN]
Inventors
  • 霍俊彦 HUO, Junyan
  • 马彦卓 MA, Yanzhuo
  • 万帅 WAN, Shuai
  • 杨付正 YANG, Fuzheng
  • 李新伟 LI, Xinwei
Agents
  • 北京派特恩知识产权代理有限公司 CHINA PAT INTELLECTUAL PROPERTY OFFICE
Priority Data
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) INTRA-FRAME CHROMATICITY PREDICTION METHOD AND DEVICE, AND COMPUTER STORAGE MEDIUM
(FR) PROCÉDÉ ET DISPOSITIF DE PRÉDICTION DE CHROMATICITÉ INTRA-IMAGE, ET SUPPORT DE STOCKAGE INFORMATIQUE
(ZH) 色度帧内预测方法和装置、及计算机存储介质
Abstract
(EN)
Disclosed are an intra-frame chromaticity prediction method, a decoder, and a computer storage medium. The intra-frame chromaticity prediction method comprises: acquiring a DM corresponding to a current chromaticity block from a data stream corresponding to the current chromaticity block (101); if the DM is in a DC mode or a planar mode, acquiring a set of chromaticity prediction modes according to an optimized backup mode, wherein the set of chromaticity prediction modes is used to perform chromaticity reconstruction on the current chromaticity block (102).
(FR)
L'invention concerne un procédé de prédiction de chromaticité intra-image, un décodeur et un support de stockage informatique. Le procédé de prédiction de chromaticité intra-image comprend les étapes consistant à : acquérir un DM correspondant à un bloc de chromaticité actuel à partir d'un flux de données correspondant au bloc de chromaticité actuel (101) ; si le DM est dans un mode DC ou un mode plan, acquérir un ensemble de modes de prédiction de chromaticité selon un mode de sauvegarde optimisé, l'ensemble de modes de prédiction de chromaticité étant utilisé pour mettre en oeuvre une reconstruction de chromaticité sur le bloc de chromaticité actuel (102).
(ZH)
一种色度帧内预测方法、解码器及计算机存储介质,该色度帧内预测方法包括:从当前色度块对应的码流数据中获取当前色度块对应的DM(101);若DM为直流DC模式或者平面Planar模式,则按照优化备选模式,获取色度预测模式集合;其中,色度预测模式集合用于对当前色度块进行色度重建(102)。
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