Abstract:

A novel change detection method based on template, which is made by high resolution optical image, was studied systematically in the paper. Firstly, high resolution optical images are used to make binary templates, the template and the two tobedetected images are matched separately, and then the region that waits for inspection is obtained by calculating the spatial transformation of the template and the image sequence. Secondly, the segmentation sea area images are obtained through weighted fusion of template and different temporal images，and then the CFAR algorithm is used to extract the changed targets. Finally, target features are extracted to perform change analysis. The efficiency of the method is proved by experimental results of different harbor images of SAR and optical in the practical application.

Key words: template;CFAR;change detection;change analysis