摘要： 主要讨论了H.26L协议多参考帧运动估计的思想,提出了实现多参考帧运动估计的新算法。在传统的连续消除算法(SEA)基础上设计了“连续中心外螺旋搜索算法(SCOS)”。这个算法主要根据多参考帧特点改进了运动搜索的起始点设置方法和螺旋向外的搜索路径。通过采用这个算法,使得多参考帧运动估计不仅精度能和全局搜索(Full Search)相同,而且计算量缩短25%,时间缩短7%左右。

关键词: 多参考帧运动估计, 连续消除算法, 连续中心外螺旋搜索算法, H.26L

Abstract: The paper mainly studies the thought of multi-reference-frame motion-prediction and brings forward a new implementing algorithm.The new algorithm, inherited from the successive eliminate algorithm(SEA), is called successive center outside spire search algorithm, which improves on the search-start-dot locating and search-path. The algorithm is about 10% more quicker than full-searching, while its precision is almost the same as that of FS.

中图分类号: 

• TN919.8