基于视频的跟踪，结合卡尔曼和camshift的目标跟踪。由鼠标选中目标区域（包含了鼠标选中程序），kalman和camshift预测质心，从而达到目标跟踪。-Based opencv, combined with the target tracking Kalman and camshift. By the mouse to select the target area, kalman and centroid camshift forecast to achieve target tracki