Moving object detection by frame difference method是当前视频图像领域进行动目标捕捉的最简单有效的方法，核心思想是从视频中提取每一帧，并与下一帧做相关检测，通过相关系数提取运动的目标。-Moving target detection and frame difference method is the current video image field is moving the most simple and effective method t

通过实时更新背景来提取视频当中运动的目标-Real-time update of the background to extract the video among the target