节点文献
基于块合分的运动估计及其准则
Motion Estimation Based on Block Splitting and Merging and Its Criteria
【摘要】 基于块分裂合并的运动估计法先用小尺寸的块进行运动估计,通过分析各块的匹配误差图来表征块的分裂与合并,将运动相关性好的块合并成一个块,得到新的运动矢量.同时还设计了使估计量尽可能接近真实运动的块合并判决准则.实验表明,该方法能得到更接近物体真实运动且一致性好的运动矢量.
【Abstract】 A new motion estimation method based on block splitting and merging is presented, in which small size blocks are used for an FBMA motion estimation, and their error maps are then obtained. Neighbor blocks with good coherence and correlations are merged together according to their error maps to get better motion vectors. Criteria for block merging and splitting are also studied in order to get a motion vector that is most consistent with true motion of the object. Experiments show that the results are satisfactory.
【关键词】 运动估计;
块匹配法;
运动矢量一致性;
块的分裂与合并;
【Key words】 motion estimation; block matching algorithm; motion vector coherence; block splitting and merging;
【Key words】 motion estimation; block matching algorithm; motion vector coherence; block splitting and merging;
【基金】 国家自然科学基金
- 【文献出处】 上海交通大学学报 ,JOURNAL OF SHANGHAI JIAOTONG UNIVERSITY , 编辑部邮箱 ,1998年04期
- 【分类号】TN941.1
- 【被引频次】4
- 【下载频次】48