ObjectExtract

代码说明：

  做是人行为检测的，第一步是从视频中跟踪人，然后去除背景。此程序是基于均值的背景减除（目标跟踪）。(To do is act of detection, the first step is to track people from the video, and then remove the background. This procedure is based on the average of the background subtraction (target tracking).)