关键词: 视频监控, 运动检测, 帧间差分, 背景差分, 肤色模型

Abstract: It is very necessary to apply motion detection to video surveillance in order to enhance the performance of system，and human motion detection is the foundation of advanced operations.An enhanced algorithm in which background image estimation based self-adaptation is combined with current consecutive frames subtraction，which can detect motive region rapidly and exactly.Afterward，it can realize human motion detection quickly and reliably by face detection which is based on the consecution of time domain in video images and skin information of face.According to real-time quality，presented the veracity and reliability of video surveillance is presented in this paper.The result of experiment demonstrates that the algorithm is robust in complex situation and adapts to video surveillance.

Key words: video surveillance, motion detection, two consecutive frames subtraction, background subtraction, skin model