H.264中一种基于码率的块分割模式选择方法研究

Research on Block Partition Mode Selection Method Based on Bit-rate in H.264

H.264是一种新提出来的视频压缩标准。论文首先介绍了H.264中所采用的多宏块分割模式技术,然后对比较耗时的块分割模式模块进行分析测试,在此基础上提出了一种基于码率的块分割模式选择方法,并对该方法进行了测试,实验结果表明:在相同的PSNR下,采用新的方案后的耗时比JM8.2编码方案缩短了20%左右。

H.264 is a newly proposed video compression standard.The multi-macroblock partition mode technology adopted in H.264 are introduced first,then some analysis and tests on the block partition mode selection module which is time-consuming are carried out,and based on the analysis of test results,a new block partition mode selection method is proposed in this paper.Experimental results show that this method can save about 20% time compared with that of JM8.2 under the same PSNR.