Journal of Computer Applications

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Fast intra prediction mode decision algorithm in H.264/AVC

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  • Received:2007-10-25 Revised:1900-01-01 Online:2008-04-01 Published:2008-04-01
  • Contact: Liang LUO

H.264/AVC快速帧内预测模式选择算法

罗亮 刘春生 周芦明   

  1. 南京航空航天大学自动化学院 南京航空航天大学自动化学院 南京航空航天大学自动化学院
  • 通讯作者: 罗亮

Abstract: A fast mode decision algorithm was presented for H.264/AVC intra prediction based on the feature of the block and neighboring block's mode information. The number of candidate mode was reduced, for 4×4 luminance block, from 9 to 1~4. Experimental results show that, compared with the H.264 encoder JM8.6, the proposed scheme reduces coding time by 50%~60% for Iframe while keeping PSNR and bit rate almost unchanged.

Key words: H.264/AVC, intra prediction, mode decision, video compression

摘要: 基于像素块的纹理特性,相邻块预测模式的相关性提出了一种H.264/AVC快速帧内预测算法,该算法将4×4亮度块的候选模式从9种降低到1~4种。实验结果表明,与H.264编解码器JM8.6相比,I帧编码时间降低50%~60%,而PSNR和输出码率基本保持不变。

关键词: H.264/AVC, 帧内预测, 模式选择, 视频压缩