视频检测系统是利用图像处理技术从运动图像序列中检测、识别、跟踪车辆的技术，获取所需交通流状态信息。常用方法是基于与背景相比较的方法。-Video detection system is the use of image processing technology, the detection of motion in image sequence recognition, vehicle tracking technology, to obtain the required traffic fl