说明：  CamShift算法，即"Continuously Apative Mean-Shift"算法，是一种运动跟踪算法。它主要通过视频图像中运动物体的颜色信息来达到跟踪的目的。我把这个算法分解成三个部分，便于理解： 1) Back Projection计算 2) Mean Shift算法 3) CamShift算法
(CamShift algorithm, that is, " Continuously Apative Mean-Shift" algorithm, is a motion tracking algorithm. It is mainly through the video images of moving objects in the color information to achieve the purpose of tracking. I put this algorithm broken down into three parts, easy to understand: 1) Back Projection calculations 2) Mean Shift Algorithm 3) CamShift algorithm)