考虑图像边界的分块立体匹配算法

Blocking stereo matching algorithm considering image boundary

为获得图像边界区域有效视差信息,提出一种图像分块匹配的算法。首先根据像素点匹配窗口及视差搜索范围的越界情况,将图像分为中心和边界共九块,然后针对边界块,按照基准点靠近窗口中心的原则设定匹配窗口,最后分析了边界块与分界线上像素点的视差值关系。实验结果表明,该算法能获得良好的边界视差信息并节省了匹配时间。

In order to obtain the effective parallax of images boundary area in stereo matching,an algorithm of stereo matching by blocking image was presented.First,the image is divided into center area and boundary area according to cross-border situation of matching window and the range of parallax search in the pixel matching process,and in the light of nine blocks.And then,matching window of border blocks is selected,and the position of pixel pivot window center.Finally,the parallax relation between the border blocks and the pixel of dividing line is analyzed.The experimental result shows that the algorithm can obtain good boundary parallax information and to a certain extent,save operation time.