基于视频序列图像的车辆测速研究

Vehicle speed detection research based on video sequence images

基于高速公路移动测速设备的测速模式,本文提出了一种基于视频序列图像的车辆测速实现方法,通过测定固定时间间隔的两帧连续序列图像中目标车辆的相对位移实现车速的测定,运用车道划分、车辆定位判别的思想提高了测速的精度,对车道划分前后的速度测量误差进行了分析,并指出了实际测速时需要注意的几个关键点。实验结果表明,该方法能较为精确地测量出车辆的实际行驶速度,克服了传统测速方法的多种不足,在高速公路移动测速等场合具有较好的实用价值。

The paper presents a vehicle speed detection method using video sequence images based on the speed detection model of highway mobile speed detection equipment. It accomplishes the vehicle speed detection by measure the displacement of the object moved between two fixed interval sequence images, improves the speed detection precision by the idea of driveway partition and vehicle orientation distinguish. Then, we analyze the fore-and-aft measure error of driveway partition and indicate several key points which must be noticed in speed detection. Experiments result shows that the method could get a high precision in vehicle speed detection and it can overcome the disadvantages of traditional speed detection methods. The method has a better practical value in highway mobile speed detection and other occasions.