Feature point matching of curved surface and robust uncertainty  

作　　者：Tian Jinsi Su Jianbo 

机构地区：[1]Dept. of Automation, Shanghai Jiaotong Univ. , Shanghai 200030, P. R. China

出　　处：《Journal of Systems Engineering and Electronics》2006年第2期355-361,共7页系统工程与电子技术（英文版）

基　　金：This project was supported by the National Natural Science Foundation of China (60275042) and"Shuguang"Project ofShanghai Municipal Education Committee

摘　　要：Stereo matching is an important research area in stereovision and stereo matching of curved surface is especially crucial A novel correspondence algorithm is presented and its matching uncertainty is computed robustly for feature points of curved surface. The comers are matched by using homography constraint besides epipolar constraint to solve the occlusion problem. The uncertainty sources are analyzed. A cost function is established and acts as an optimal rule to compute the matching uncertainty. An adaptive scheme Gauss weights are put forward to make the matching results robust to noises. It makes the practical application of comer matching possible. From the experimental results of an image pair of curved surface it is shown that computing uncertainty robustly can restrain the affection caused by noises to the matching precision.Stereo matching is an important research area in stereovision and stereo matching of curved surface is especially crucial A novel correspondence algorithm is presented and its matching uncertainty is computed robustly for feature points of curved surface. The comers are matched by using homography constraint besides epipolar constraint to solve the occlusion problem. The uncertainty sources are analyzed. A cost function is established and acts as an optimal rule to compute the matching uncertainty. An adaptive scheme Gauss weights are put forward to make the matching results robust to noises. It makes the practical application of comer matching possible. From the experimental results of an image pair of curved surface it is shown that computing uncertainty robustly can restrain the affection caused by noises to the matching precision.

关 键 词：stereo matching robust uncertainty HOMOGRAPHY Gauss weights. 

分 类 号：TN91[电子电信—通信与信息系统]