文献类型：会议论文

英文题名：Highly Accurate Estimation of Sub-pixel Motion Using Phase Correlation

作者：Yu, Yinghuai[1,2];Wang, Jinrong[3]

机构：[1]Guangdong Ocean Univ, Coll Informat, Zhanjiang 524088, Peoples R China;[2]Guangdong Ocean Univ, Lab Ocean Remote Sensing & Informat Technol, Zhanjiang 524088, Peoples R China;[3]Guizhou Univ, Coll Sci, Guiyang 550025, Peoples R China

会议论文集：Chinese Conference on Pattern Recognition

会议日期：SEP 24-26, 2012

会议地点：Beijing, PEOPLES R CHINA

语种：英文

外文关键词：Sub-pixel motion estimation; phase correlation; zero-padding; paraboloid fitting

外文摘要：Motion estimation is one of the basic problems in digital video processing; it is significant in the applications of video image compression, super-resolution reconstruction, mosaic, and target detection, and so on. In the base of discussing usual phase correlation algorithm, we present an improved algorithm for the problem of highly accurate sub-pixel motion estimation, which introduces zero-padding for computing the initial estimate at sub-pixel level, and also adopts the method of paraboloid fitting phase correlation for refining the initial estimate. Experimental results show that the proposed algorithm can not only achieve good robustness to the influence of noise, but can also improve the accuracy of motion estimation significantly.