用emshift方法来进行复杂背景下运动目标的跟综-Ways to use emshift complex background moving target tracking

利用EM算法结合颜色直方图的目标跟踪，利用EM算法实时更新颜色直方图-Using EM algorithm combines the color histogram for target tracking, real-time updates using EM algorithm color histogram

ColorHist GetAffineRegion