OpenCV stereo matching BM 算法

一直找不到opencv stereo matching的根据和原理出处，下面这个文章贴了个链接，有时间看看：

Basically OpenCV

provides 2 methods to calculate a dense disparity map:

process several images per second), but if parameters not tuned then the results are poor.

Slow (takes several seconds, even minutes per image), but gets very

accurate results.

参考：

<a target="_blank" href="http://blog.martinperis.com/2011/08/opencv-stereo-matching.html">http://blog.martinperis.com/2011/08/opencv-stereo-matching.html</a>