H.264帧内预测模式选择的快速算法分析

帧内预测是H.264/AVC的一个重要组成部分,它充分利用了图像的空间相关性,提高了压缩效率,对编码器的整体性能提高具有重要作用。然而其运算复杂度很高,不能满足实时视频的要求。因此,近几年很多文章提出了H.264帧内预测模式选择的快速算法,它们对H.264/AVC实现实时编码做出了很大贡献。本文就是对近年来的提出的各种帧内预测模式选择的快速算法的进行了实际验证,并且分析了每种算法的优缺点。

Intra Prediction Mode Selection Fast Algorithm's Analysis for H.264

An importance constituting part of the H.264/AVC is intra prediction,it made use of the space relativity of the intra-frame well,raised the compressing efficiency,having enhanced the whole performance of the coder.However it's operation complexity is very high,can't satisfy the request of the real-time video.Therefore,in the latest years many articles put forward to H.264 fast mode decision method of intra prediction,they make great contribution to the H.264/AVC to carry out real-time coding.This paper make an actual identification towards putting forward in recent years of the fast mode decision method of intra prediction,analyze its merit and demerit.