Automatic visual/IR image registration

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文件名称：Automatic visual/IR image registration
文件大小：3.42MB
文件格式：PDF
更新时间：2013-10-15 05:23:18
image registration;contour extraction;point feature extraction; A feature-based approach to visual/IR sensor image registra- tion is presented.This new method overcomes the difficulties caused by the discrepancy in data’s gray-scale characteristics and the problem of feature inconsistency.It employs a wavelet-based feature extractor to locate point features from contours based on local statistics of the image intensity.Matching is carried out at multiresolution levels based on point features.A consistency-checking step is involved to eliminate mis- matches.The algorithm is accurate,robust,and fast.It is capable of handling images with considerable translation,scaling,and rotation.De- tails on the registration algorithm including feature extraction,matching, consistency checking,and the image transformation model are dis- cussed.Experimental results using real visual/IR sensor data are presented.