利用opecv的卡曼濾波器函數實現一個對二維點的追蹤，移動中的點以滑鼠在視窗的位置來取代。-Use opecv Kalman filter function is the realization of a 2D point tracking, instead of moving the point to the location of the mouse in Windows.

颜色直方图粒子滤波器，并给出了英文参考文献； 运行方式：在前景窗口，按p键停止，在目标区域点击鼠标，让程序自动识别出目标轮廓，再次按p键，即可跟踪-The color histogram particle filter, given English references operation modes: in the foreground window, press p stop clicking the mouse in the target area, allowing the pro