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1. WO2013000437 - INTRA-FRAME PREDICTION-BASED DECODING METHOD AND DECODING DEVICE

Publication Number WO/2013/000437
Publication Date 03.01.2013
International Application No. PCT/CN2012/078039
International Filing Date 02.07.2012
IPC
H04N 7/34 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
7Television systems
24Systems for the transmission of television signals using pulse code modulation
26using bandwidth reduction
32involving predictive coding
34using spatial prediction
CPC
H04N 19/119
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
119Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
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 19/46
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
46Embedding additional information in the video signal during the compression process
H04N 19/593
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
50using predictive coding
593involving spatial prediction techniques
Applicants
  • 华为技术有限公司 HUAWEI TECHNOLOGIES CO., LTD. [CN]/[CN] (AllExceptUS)
  • 杨海涛 YANG, Haitao [CN]/[CN] (UsOnly)
  • 赖昌材 LAI, Changcai [CN]/[CN] (UsOnly)
Inventors
  • 杨海涛 YANG, Haitao
  • 赖昌材 LAI, Changcai
Priority Data
201110182388.830.06.2011CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) INTRA-FRAME PREDICTION-BASED DECODING METHOD AND DECODING DEVICE
(FR) PROCÉDÉ DE DÉCODAGE À BASE DE PRÉDICTION INTRA-TRAMES ET DISPOSITIF DE DÉCODAGE
(ZH) 一种基于帧内预测的解码方法和解码装置
Abstract
(EN)
The embodiments of the present invention provide an intra-frame prediction-based decoding method and decoding device. The decoding method comprises: acquiring for a current prediction unit one or multiple split flags, a split shape flag, and a split direction flag from a compressed video image stream; splitting the current prediction unit ultimately into multiple square transform units or multiple rectangular transform units according to the acquired one or multiple split flags, split shape flag, and split direction flag; executing decoding process on each square transform unit of the ultimately split multiple square transform units or on each rectangular transform unit of the ultimately split multiple rectangular transform units.
(FR)
Dans des modes de réalisation, l'invention concerne un procédé de décodage à base de prédictions intra-trames et un dispositif de décodage. Le procédé de décodage consiste : à acquérir pour une unité de prédiction actuelle un ou plusieurs drapeau(x) divisé(s), un drapeau en forme de division et un drapeau de direction de division à partir d'un flux d'images vidéo compressé ; à diviser finalement l'unité de prédiction actuelle en de multiples unités de transformée quadratique ou en de multiples unités de transformée rectangulaire en fonction du ou des drapeau(x) acquis divisé(s), d'un drapeau en forme de division et d'un drapeau de direction de division ; à exécuter un processus de décodage sur chaque unité de transformée quadratique de multiples unités de transformée quadratique finalement divisées ou sur chaque unité de transformée rectangulaire de multiples unités de transformée rectangulaires finalement divisées.
(ZH)
本发明实施例提供了一种基于帧内预测的解码方法和解码装置。该解码方法包括:为当前预测单元从视频图像的压缩码流中获取一个或多个分割标记、一个分割形状标记和一个分割方向标记;根据所获取的上述一个或多个分割标记、该分割形状标记和该分割方向标记将当前预测单元最终分割为多个方形变换单元或多个矩形变换单元;对最终分割得到的多个方形变换单元中的每个方形变换单元或最终分割得到的多个矩形变换单元中的每个矩形变换单元执行解码流程。
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