MHI（运动历史图），通过计算时间段内同一位置的像素变化，将目标运动情况以图像亮度的形式表现出来。在vs2005+OpenCV1.0环境下运行。-MHI (motion history diagram), by calculating the change in the same period of the pixel position, the movement of the target in the form of image brightness show. Running under