基于复式伸缩窗的车辆排队与消散快速检测算法

基于视频图像处理方法,提出了一种复式伸缩窗来实时跟踪交叉口排队车辆队尾和队头的位置变化,从而准确描述交叉口车辆排队形成和消散过程。通过检测指定区域内车辆是否存在和是否运动,分别构建跟踪排队队尾和队头的队尾伸缩窗和队头伸缩窗。描述排队首尾伸缩变化的复式伸缩窗则由这两个伸缩窗相互协作所构成。根据跟踪队尾和队头的结果,车辆排队长度和停车延迟时间等重要参数就可以轻易得到。试验结果表明本文算法能实时准确地跟踪队尾和队头的位置,能适应不同天气环境和光照变化,其准确率达到92%以上,较好地满足车辆堵塞监控和交通信号灯控制的需要。

An Efficient Vehicle Queue and Dissipation Detection Algorithm Based on Duplex Flexible Window

Based on video image processing technology,an efficient vehicle queue and dissipation detection method was proposed.The method can track the position changes of vehicles queue tail and head at intersection in real time,and accurately describe the formation and dissipation of the queue.By vehicle presence detection and movement analysis on the monitored region,queue tail and head flexible windows were adopted to track the queue tail and head positions.These two cooperative flexible windows constitute a duple...