Feature matching algorithm based on rectification of epipolar-line region
Lichun Li · Optical Technique · 2008
In the process of 3D measurement and structure reconstruction from multi-views,the direct area-correlation method based on epipolar constraint works inefficiently to match targets.To solve this problem,a feature matching algorithm based on rectification of epipolar-line region is proposed.The theory of epipolar constraint is introduced,the correlation matching method and the corresponding feature property of image pair are analyzed,the algorithm is introduced.The algorithm rectifies the regions of the corresponding epipolar-lines which include the feature points to be matched through rotating.Matching by correlating on the rectified regions works automatically and gives accurately correspondence throuth least square image matching.Experiments with real images show that the algorithm improves the robustness and the accuracy of feature matching method under epipolar constraint.