H.264视频编码的关键技术分析及复杂度研究测试

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。

Key Technical Analysis and Complexity Research Testing for H.264

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 ab...