A review on background subtraction in a fixed background video surveillance. It includes basic frame difference method , averaging and gmm based subtraction of background.

背景差和帧差法实现运动人体的跟踪，具有搞噪声和消除大部分阴影功能-Background subtraction and frame difference method to achieve the tracking of the movement of the human body to engage in noise and eliminate most of the shadow function

一种基于背景减法和帧差的运动目标检测算法-Based on background subtraction and frame difference moving target detection algorithm

运动目标检测是将位置发生改变的物体从背景中提取出来，它是运动目标跟踪、行为识别 和场景描述等技术的基础。运动目标检测的经典方法有光流法、帧间差分法和背景减除法。-Moving object detection is to change the position of the object extracted the background, it is a moving target tracking, behavior recognition And underlying techno