关键词: 边缘提取, 图像匹配, 图像融合

Abstract: Aiming at single sensor’s limitation on spectrum and spatial resolution，this paper uses the technology of multi-sensor fusion，which furthest obtains the information description of target scene.This paper firstly adopts different edge detection to extract the same scene’s optical image and SAR image，obtaining each one’s edge feature image.By adopting the methods of moment invariants and contour-based moment to match each edge in the two edge feature images，this paper obtains the clearer and even more complete image.

Key words: edge detection, image matching, image fusion