A Simple Implement of Motion Detection

Motion detection techniques are widely exploited in videos in many applications,an efficient algorithm has became the most important role in the real systems.Affter studying on the background rebuilding,this work proposes a simple,efficient algorithm of background subtraction,using the subtraction between frames and flag datas.It sorts the pixels using the subtraction results,and chose different update methods based on the sort.In the paper,a solution of that algorithm with DirectShow in C++ programming environment has been explained,and the frames of the demo show the result.It can be concluded that this implement has achieved the real-time detection in the observed area with no complex operations.