meanShift算法用于视频目标跟踪时，采用目标的颜色直方图作为搜索特征，通过不断迭代meanShift向量使得算法收敛于目标的真实位置，从而达到跟踪的目的。-meanShift video object tracking algorithm is used, the use of the color histogram of the target as a search feature, so that through continuous iteration meanShift vecto