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1. (WO2017034331) METHOD AND DEVICE FOR CHROMA SAMPLE INTRA PREDICTION IN VIDEO CODING SYSTEM

Pub. No.:    WO/2017/034331    International Application No.:    PCT/KR2016/009411
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Fri Aug 26 01:59:59 CEST 2016
IPC: H04N 19/11
H04N 19/186
H04N 19/44
H04N 19/159
Applicants: LG ELECTRONICS INC.
엘지전자 주식회사
Inventors: SON, Eunyong
손은용
HEO, Jin
허진
PARK, Seungwook
박승욱
JEON, Yongjoon
전용준
KOO, Moonmo
구문모
Title: METHOD AND DEVICE FOR CHROMA SAMPLE INTRA PREDICTION IN VIDEO CODING SYSTEM
Abstract:
An intra prediction method according to the present invention comprises the steps of: acquiring information on a luma prediction mode of a current block and information on a chroma prediction mode of the current block from a bit stream; deriving a luma intra prediction mode of the current block on the basis of the information on the luma prediction mode; determining a chroma intra prediction mode of the current block on the basis of information on the luma intra prediction mode and the information on the chroma prediction mode; and generating a chroma prediction sample of the current block on the basis of the chroma intra prediction mode. According to the present invention, it is possible to reflect the difference between the ratio of the width to the height of a luma component and the ratio of the width to the height of a chroma component, and thus to more accurately perform intra prediction in units of samples and improve intra prediction performance.