opencv中自带的sgbm算法（半全局匹配）的源代码，具有很好的立体匹配效果，是opencv中自带算法中速度和效果较好的一种。-Sgbm algorithm with OpenCV (semi global matching) of the source code, has the very good effect of stereo matching, opencv comes with the speed and the effect of a good algorithm.

在opencv坏境下，实现立体匹配后期处理，增加最后效果-it can complete the last process after the Stereo Matching，which can improve the matching result