关键词: 立体匹配, 邻域边界差值模板, 视差图, 绝对差值和（SAD）

Abstract: The reason of SAD that the mismatching will readily happen in non-texture regions is analyzed.A new stereo matching algorithm based on neighborhood edge difference templet is proposed.This templet is the difference between the window including a point to be matched and its accompany window with an edge point.And the edge point is the pixel with color variation dramatically.It can be determined dynamically and located in the center of the accompany window.So the additional color information of the accompany window will help to reduce the false matching in the non-texture regions.The experimental results of this algorithm are evaluated in Middlebury website.It shows that this algorithm can be used to successfully obtain dense disparity map and the false matching in non-texture regions is reduced obviously.

Key words: stereo matching, neighborhood edge difference templet, disparity map, Sum of Absolute Difference（SAD）