H.264/AVC快速帧内预测模式选择算法  

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

作　　者：罗亮[1] 刘春生[1] 周芦明[1] 

机构地区：[1]南京航空航天大学自动化学院,南京210016

出　　处：《计算机应用》2008年第4期1006-1008,共3页journal of Computer Applications

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。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 ioformation. 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.

关 键 词：H.264/AVC 帧内预测 模式选择 视频压缩 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]