基于MPEG4编码搜索算法的改进  

Improvement of the search algorithm based on MPEG4 coding

作　　者：朱怀礼[1] 丁国财[1] 舒英[1] 童贞理[1] 

机构地区：[1]重庆邮电学院3G研究院,重庆400065

出　　处：《无线电通信技术》2006年第4期47-49,共3页Radio Communications Technology

基　　金：国家科技型中小企业技术创新基金资助项目(01C26215110971)

摘　　要：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.

关 键 词：MPEG4编码 无线视频 运动矢量场搜索技术 改进 

分 类 号：TN911.21[电子电信—通信与信息系统]