%0 Journal Article
%T An Improved Optical Flow Method for Image Registration with Large-scale Movements<br>一种应用于图像配准中大尺度位移估计的改进光流法
%A XIONG Jing-Yi
%A LUO Yu-Pin
%A TANG Guang-Rong
%A <br>熊静旖
%A 罗予频
%A 唐光荣
%J 自动化学报
%D 2008
%I 
%X In this paper,an improved optical flow method for image registration is proposed.It is novel in the way that it improves the optical flow method with an initial motion estimator:extended phase correlation technique (EPCT),using merits of the latter to compensate deficiencies of the former.In a more detailed manner,it can be said that the optical flow method can reach the sub-pixel accuracy and calculate complex distortion patterns like chirping and tilting but is weak with large-scale movements.Because EPCT covers measurements of large translations and rotations with pixel level accuracy and is efficient in the calculating load,it can be treated as a good initial motion estimator for optical flow method.Tests have proved that this improved method will significantly enhance the registration performance,especially,for images with large-scale movements and robust against random noises.
%K Image registration
%K improved optical flow method
%K motion estimator
%K extended phase correlation technique (EPCT)<br>Image
%K registration
%K improved
%K optical
%K flow
%K method
%K motion
%K estimator
%K extended
%K phase
%K correlation
%K technique
%K (EPCT)
%K 应用
%K 图像配准
%K 大尺度
%K 位移估计
%K 改进
%K 光流法
%K Image
%K Registration
%K Method
%K Optical
%K Flow
%K images
%K robust
%K random
%K noises
%K especially
%K improved
%K method
%K registration
%K performance
%K good
%K measurements
%K large
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=E76622685B64B2AA896A7F777B64EB3A&aid=07B4C7BBD57950036FA6C976D0ED29C4&yid=67289AFF6305E306&vid=339D79302DF62549&iid=DF92D298D3FF1E6E&sid=8D71AF42ACD39979&eid=231F9A307C169827&journal_id=0254-4156&journal_name=自动化学报&referenced_num=1&reference_num=9