期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2009
卷号：XXXVIII-7/C4
页码：341-345
出版社：Copernicus Publications
摘要：Image registration is concerned with the establishment of correspondence between the images of the same scene. It is a challenge problem especially when multispectral/multisensor images are registered. In general, such images have different gray level characteristics and imaging model, and simple registration techniques based on area methods cannot be applied directly. A registration method between synthesize aperture radar (SAR) image and Optical image is presented in this paper. There are two steps to realize the registration process. Firstly, edge detector and some morphologic methods, such as dilate and thin, are used for the contour extraction in both images. Affine transform model is used to correct the global rigid deformation (rotation, translation, scale) between two images. Then, we will estimate the residual deformation between the two images with similarity measure based on possibilities. The local deformation will be reduced in this step. The proposed registration algorithm has been applied in the experimental area with airborne SAR image and Optical image. The experimental results demonstrate that the algorithm can solve some problems to some extent between the multisensor registrations and can receive high accuracy
