目标：手工选择视频图像上的待跟踪目标；利用块匹配的方法估计目标区域在下一帧图像中的位置；循环这个过程直到目标从图像帧中消失。

技术：avi视频流的帧读取；图像帧存储格式的了解；RGB图像的灰度化；灰度图象的平滑滤波；块运动估计算法的实现；使用MFC显示图像帧；MFC上鼠标事件的使用。

-objectives : manually select video images on the question target tracking; Use block matching methods for estimating the target region in the next frame image position; Until this process cycle from the goal frame images disappear. Technology : avi video streaming reading frame; Image frame storage formats; RGB images of gray; Gray image smoothing filter; Block motion estimation algorithm implementation; MFC showed images frame; MFC on the use of the mouse.