H.264视频编码的关键技术分析及复杂度研究测试  

Key Technical Analysis and Complexity Research Testing for H. 264

作　　者：云静[1] 

机构地区：[1]内蒙古工业大学信息工程学院计算机系,内蒙古呼和浩特010051

出　　处：《计算机与现代化》2010年第6期51-54,共4页Computer and Modernization

摘　　要：H.264比原有的视频编码标准大幅度提高了编码效率和稳定性,但其运算复杂度也大大增加。为了在不影响编码效率的前提下,降低编码运算的复杂度,提高编码的实时性,有必要对H.264的复杂性做出详细研究。H.264通过对传统的帧内预测、帧间预测、变换编码和熵编码等算法的改进来提高压缩率。本文分析H.264上述关键技术,给出基于JM86的模块复杂度测试。测试结果表明H.264编码的复杂性主要体现在帧间预测模块中,要加快H.264的编码速度,就必须对这个模块进行优化。H. 264 video coding standard is more efficiency and stability than the original coding substantially,but its computational complexity is also increased significantly. Reducing the complexity of encoding operations,improving real-time encoding,but no affecting the coding efficiency,it is necessary to make a study of the complexity of H. 264. Intraprediction,inter-frame prediction,transform coding and entropy coding algorithm are improved to increase the compression ratio in H. 264. This paper analyzes the above key technology in H. 264,gives the complexity of modules in H. 264 based on JM86. Testing results show that the complexity of H. 264 encoding is mainly reflected in the inter prediction module. To speed up H. 264 encoding speed,it is necessary to optimize this module.

关 键 词：视频编码 H.264编码 编码复杂度 

分 类 号：TP317.4[自动化与计算机技术—计算机软件与理论]