Efficient Coding Technique for 4X4 Intra Prediction Modes using the Statistical Distribution of Intra Modes of Adjacent Intra Blocks

주변 인트라 블록 예측 모드의 통계적 분포를 이용한 효율적인 인트라 4X4 예측 모드 부호화 방법

  • 김재민 (충북대학교 전자정보대학 정보통신공학과) ;
  • 강현수 (충북대학교 전자정보대학 정보통신공학과)
  • Published : 2009.04.28


In this paper, we propose a novel method which efficiently codes $4{\times}4$ intra prediction modes in H.264/ AVC video encoding. There are nine optional prediction modes for each $4{\times}4$luma block and 4 modes for each $16{\times}16$luma block. To code each $4{\times}4$ intra prediction mode, lots of bits are required. To efficiently compress the intra mode bits in H.264/AVC, the most probable mode(MPM) is estimated by using the intra modes of the adjacent blocks, since intra modes for neighboring $4{\times}4$luma blocks are correlated. In this paper, a novel method for estimating the MPM is proposed by using the statistical distribution of intra modes of adjacent intra blocks. Experimental results show that the proposed method can achieve a coding gain of about 0.1dB.


H.264/AVC;Intra Coding;Intra Prediction;MPM


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