A parallel mutual information based image registration algorithm for applications in remote sensing

Authors:
Yunfei Du;Haifang Zhou;Panfeng Wang;Xuejun Yang;Hengzhu Liu
Affiliations:
School of Computer, National University of Defense Technology, Changsha, Hunan, China;School of Computer, National University of Defense Technology, Changsha, Hunan, China;School of Computer, National University of Defense Technology, Changsha, Hunan, China;School of Computer, National University of Defense Technology, Changsha, Hunan, China;School of Computer, National University of Defense Technology, Changsha, Hunan, China
Venue:
ISPA'06 Proceedings of the 4th international conference on Parallel and Distributed Processing and Applications
Year:
2006

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Abstract

Image registration is a classical problem that addresses the problem of finding a geometric transformation that best aligns two images. Since the amount of multisensor remote sensing imagery are growing tremendously, the search for matching transformation with mutual information is very time-consuming and tedious, and fast and automatic registration of images from different sensors has become critical in the remote sensing framework. So the implementation of automatic mutual information based image registration methods on high performance machines needs to be investigated. First, this paper presents a parallel implementation of a mutual information based image registration algorithm. It takes advantage of cluster machines by partitioning of data depending on the algorithm's peculiarity. Then, the evaluation of the parallel registration method has been presented in theory and in experiments and shows that the parallel algorithm has good parallel performance and scalability.