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基于块匹配的运动估计搜索算法研究与实现
Study and implementation on block-matching search algorithm for motion estimation
【摘要】 为了满足运动矢量概率分布特性,提出了非对称双十字形搜索(UDCS)算法,给出了在搜索的初始阶段使用小十字搜索模型对小的运动矢量搜索并在相继的搜索过程中使用具有方向性的十字形搜索模型对大运动矢量进行搜索的步骤。介绍了该算法的实现结构,并分析了该算法搜索性能。
【Abstract】 An unsymmetrical cross-search algorithm(UDCS) was proposed based on motion vector distribution characteristics.Search steps of using small cross-search pattern to find small motion vectors in initial phase and unsymmetrical cross-search pattern to determine search large motion vectors in subsequent steps were brought forward.Finally,the architecture of the algorithm for implementation was introduced and performance was analyzed.
【关键词】 块匹配运动估计;
非对称十字形搜索;
十字中心偏置特性;
【Key words】 block-matching motion estimation; unsymmetrical cross searching; cross-center-biased property;
【Key words】 block-matching motion estimation; unsymmetrical cross searching; cross-center-biased property;
【基金】 国家自然科学基金资助项目(30370393);国家民委自然科学基金资助项目(MZZ04004)
- 【文献出处】 计算机应用 ,Journal of Computer Applications , 编辑部邮箱 ,2006年06期
- 【分类号】TP391.41
- 【被引频次】16
- 【下载频次】275