文献类型：期刊文献

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] College of Information, Guangdong Ocean University, Zhanjiang 524088, China; [2] Lab. of Ocean Remote Sensing and Information Technology, Guangdong Ocean University, Zhanjiang 524088, China; [3] College of Science, Guizhou University, Guiyang 550025, China

年份：2012

卷号：321 CCIS

起止页码：186

外文期刊名：Communications in Computer and Information Science

收录：EI(收录号：20124115549380)

语种：英文

外文关键词：Multimedia systems - Pixels - Video signal processing - Computer vision - Computer graphics - Image compression

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. ? 2012 Springer-Verlag.