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1. CN107079161 - Method of intra picture block copy for screen content and video coding

Office
China
Application Number 112015000046863
Application Date 26.08.2015
Publication Number 107079161
Publication Date 18.08.2017
Grant Number 107079161
Grant Date 20.11.2020
Publication Kind B
IPC
H04N 19/50
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
50using predictive coding
CPC
H04N 19/52
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
50using predictive coding
503involving temporal prediction
51Motion estimation or motion compensation
513Processing of motion vectors
517by encoding
52by predictive encoding
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
H04N 19/105
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
105Selection 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
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 MEDIATEK INC
寰发股份有限公司
Inventors XU XIAOZHONG
许晓中
CHUANG TZU-DER
庄子德
LIU SHAN
刘杉
Agents 北京市万慧达律师事务所 11111
北京市万慧达律师事务所 11111
Priority Data 62/044,385 01.09.2014 US
Title
(EN) Method of intra picture block copy for screen content and video coding
(ZH) 用于屏幕内容以及视频编码的帧内图片块复制的方法
Abstract
(EN)
A method of screen content coding (SCC) and video coding using coding modes including IntraBC mode (Intra-block copy mode) is disclosed. In one embodiment, a Merge candidate list including one or more IntraBC Merge candidates and one or more Inter Merge candidates is derived. If an IntraBC Merge candidate is selected from the Merge candidate list for the current block, the current motion information of the current block is encoded or decoded by sharing candidate motion information of the selected IntraBC Merge candidate as the current motion information of the current block, and the current block is encoded or decoded using a coded block in the current picture located according to the current motion information as an IntraBC predictor. The candidate motion information or the current motion information may include one or more elements selected from a motion information group consisting of coding mode, displacement vector and reference picture information.

(ZH)
本发明揭露了一种使用包括IntraBC模式(帧内块复制模式)的编码模式的屏幕内容编码(SCC)以及视频编码的方法。在一个实施例中,导出包括一个或多个IntraBC合并候选以及一个或多个帧间合并候选的合并候选列表。如果IntraBC合并候选是从用于当前块的合并候选列表中选择,则通过将已选择的IntraBC合并候选的候选运动信息共享为当前块的当前运动信息来编码或解码当前块的当前运动信息,且当前块使用当前图片中的已编码块来编码或解码,其中,当前图片中的已编码块是根据作为IntraBC预测子的当前运动信息来定位。候选运动信息或当前运动信息可包含从包括编码模式、位移向量、以及参考图片信息的运动信息组中选择的一个或多个元素。

Also published as
CN201580046863.5