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1. KR1020160148005 - 인트라 블록 카피 모드 부호화를 위한 블록 벡터 예측 방법

Office
Republic of Korea
Application Number 1020167033689
Application Date 05.05.2015
Publication Number 1020160148005
Publication Date 23.12.2016
Grant Number 1018634870000
Grant Date 31.05.2018
Publication Kind B1
IPC
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 19/11
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
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 19/44
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
44Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
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
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 19/176
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 19/593
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 에이치에프아이 이노베이션 인크.
Inventors 수 샤오종
류 샨
추앙 추-더
Agents 김태홍
김진회
Priority Data 61/989,055 06.05.2014 US
62/015,711 23.06.2014 US
Title
(KO) 인트라 블록 카피 모드 부호화를 위한 블록 벡터 예측 방법
Abstract
(KO)
본 발명에 따른 영상 부호화 시스템에서 인트라BC 모드(인트라 블록 카피 모드) 부호화 블록에 대한 블록 벡터(BV) 예측 방법이 개시된다. 복수의 BV 후보 리스트가 현재 블록의 이웃 블록으로부터 도출된다. BV 후보 리스트는 현재 블록의 BV에 대한 BV 예측자로서 선택된다. 현재 블록은 현재 블록의 BV에 따라 위치된 인트라 참조 블록에 기초하여 부호화된다. 일 실시형태에 있어서, 현재 블록의 좌측-최하부(LB) 블록은 제1 BV 후보 리스트를 도출하기 위해 사용되고, 현재 블록의 상측-우측(AR) 블록은 제2 BV 후보 리스트를 도출하기 위해 사용된다. 제1 BV 후보 리스트와 제2 BV 후보 리스트 사이에서 BV 예측자를 선택하기 위해 1-비트 인덱스 코드가 시그널링된다.