摘要
块匹配算法是运动估计中一项重要的技术。块匹配中多数算法没有充分利用运动向量之间的时间和空间的相关性就进行快速搜索,从而影响了图像的质量和搜索的速度。为更好的解决这一问题,论文提出一种基于预测性运动向量的菱形搜索方法,有效的提高了视频压缩的性能。
Block match algorithm is an important technology of motion estimation.But most of algorithms carry through fast search without taking fuU advantage of the correlation of spatial and temporal between motion vectors,so,the quality of image and search speed is not satisfied.For resolving the problem better,this paper presents an improved diamond search algorithm based on motion vector prediction,and it can efficiently improve the performance of video compression.
出处
《计算机工程与应用》
CSCD
北大核心
2006年第18期74-75,共2页
Computer Engineering and Applications
关键词
运动估计
运动向量
菱形搜索
motion estimation,motion vector,diamond search
