一个好用的视觉目标跟踪算法： 边缘跟踪，先分割出目标物的边缘信息，根据边缘求的目标物的质心，完成视觉目标跟踪-An easy to use visual target tracking algorithm: edge of the track, the first split to the edge of the target, according to the centroid of the edge of the demand target to complete the visual