基于MPEG4编码搜索算法的改进

Improvement of the search algorithm based on MPEG4 coding

对最影响其编码性能的运动搜索算法,分析了一些传统搜索算法的特点,并针对其不足,提出了一种自适应预测运动矢量场搜索技术-APMVFAST技术。通过仿真结果表明,APMVFAST技术提高了搜索速度,改进了MPEG4的编码性能,对于推进MPEG4编码在媒体终端的应用具有较好的参考价值。

At present,the video based on MPEG4 coding are used more and more widely in various mobile terminal. This paper analyses the characteristics of the traditional search algorithm that affects mostly the video coding performance, and brings forward a new search algorithm-APMVFASTtechnique, which can improves the video performance. According to the result of the simulation, the APMVFAST technique can improve the search speed and the MPEG4 coding perform.ance, which can bring some advantages for MPEG4 coding in the media terminal application.