摘要
文章在分析菱形算法的基础上,设计了一种区分出运动剧烈和缓慢的视频帧分析方法,在此基础上针对大部分的运动缓慢帧提出了一种新的搜索模板。实验结果表明,该方法同菱形搜索算法相比,可在基本不降低搜索效果的情况下极大的提高搜索效率。
In this paper, a new motion estimation based on analysis of Diamond Search is proposed, in which video frames fall into two categories: the violent-motion frames and the moderate-motion frames. On the basis of the new motion estimation method, a quick Search algorithm named Hierarchical Diamond Search Algorithm is proposed for the majority of moderate-motion frames. The results of experiments show that the proposed algorithm is much faster than Diamond Search and obtains the same image quality.
出处
《微电子学与计算机》
CSCD
北大核心
2005年第10期168-170,174,共4页
Microelectronics & Computer
基金
江苏省自然科学基金项目(BK2003029)
关键词
视频编码
运动预测
块匹配算法
菱形算法
Video coding, Motion estimation, Block matching algorithm, Diamond search