说明：  几个关于静止背景下的运动人体目标的检测和跟踪（其中有背景差法和粒子滤波结合的方法）方便广大毕业生论文写作藏考
(Some background on the movement of static human target detection and tracking (including the background difference method and the combination of particle filter methods) to facilitate the vast numbers of graduates in possession of thesis writing test)