主要完成的工作是在监控的场景中检测出运动的物体，去除干扰的背景，只留下感兴趣的目标即目标提取。目标提取,运动信息提取,PCA和诊间差分方法。-The major work done to monitor the scene in the moving objects detected, remove the background interference, leaving only the object extraction target of interest. Object extracti