An Image Mosaicing Approach Based on Image Matching and Adjustment
基于匹配与平差的景象镶嵌方法

An image mosaicing new approach based on the integration of image matching and adjustment, which can effectively remove the residual geometric distortions between mosaiced images, was presented. At first, selecting one of mosaiced image as the reference, for example, the left side image, then the other image was matched with it in the overlapping area. A point feature-based matching algorithm was employed, and a quadratic polynomial fitting method was used to locate the corresponding points within one pixel. On the basis of these corresponding points, a adjustment algorithm was performed by adding a polynomial increment to every pixel position in the right side image so that geometric position distortions between the two images is minimal under Least Square principle, thus the two images could be mosaiced together seamlessly. At the same time, the usually used methods for radiometric difference reduction are presented .The proposed approach was applied to mosaic two rectified aerial photos, after image adjustment, the residual geometric distortion was greatly removed.