INTRA PREDICTION METHOD AND APPARATUS

WIPO Patent Application WO/2012/081895

A1

An intra prediction method according to the present invention comprises the following steps: performing a directional prediction using at least one of a neighboring pixel of a current block and a left upper corner pixel positioned at a left upper corner of the current block so as to obtain a first prediction value for the current block; obtaining a second prediction value for the current block using the reference sample positioned in the current block; and weighted summing the first prediction value and the second prediction value using a weighting matrix so as to obtain a final prediction value for the current block. According to the present invention, image encoding/decoding efficiency may be improved.

LEE JIN HO (KR)
KIM HUI YONG (KR)
LIM SUNG CHANG (KR)
KIM JONG HO (KR)
LEE HA HYUN (KR)
JEONG SE YOON (KR)
CHO SUK HEE (KR)
CHOI JIN SOO (KR)
KIM JIN WOONG (KR)
AHN CHIE TEUK (KR)

PCT/KR2011/009599

June 21, 2012

December 13, 2011

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KOREA ELECTRONICS TELECOMM (KR)
LEE JIN HO (KR)
KIM HUI YONG (KR)
LIM SUNG CHANG (KR)
KIM JONG HO (KR)
LEE HA HYUN (KR)
JEONG SE YOON (KR)
CHO SUK HEE (KR)
CHOI JIN SOO (KR)
KIM JIN WOONG (KR)
AHN CHIE TEUK (KR)

H04N19/593

KR20070062146A	2007-06-15
KR20090012985A	2009-02-04
KR20090123559A	2009-12-02

YANG, Moon Ock (KR)
양문옥 (KR)

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