基于视频动态投影的实时车辆流量检测系统

系统利用视频检测线上的RGB灰度变化识别车辆，从而完成对车辆流量的检测。由于引入了动态投影技术，并由动态投影图得到特征值的波形，因此特征提取中灰度差阈值的确定变得直观而可靠。为了保证背景信号的真实性，系统采用了和背景变化相应的背景刷新技术。系统的识别正确率可达90％以上，能满足实际应用要求。

Real Time Vehicle Flow Measuring System Based on Video Dynamic Projection

In this paper, we propose a new scheme for vehicle flow measuring which recognizes the vehicle by the RGB gray scale variation on the video measuring lines. Because of the adopting of the dynamic projecting technology, we can get the feature curves from the dynamic projection picture, which make the determination of the gray scale difference threshold illustratively and reliably. For the validity of the background values, we adopt a new background refresh strategy corresponding to the background changing. The recognition rate of the system can reach over 90%. The measuring system can meet the demand of the practical application.