关键词: 尾随车辆, 超车检测, 时空域跟踪, 运动检测

Abstract:

As type,color,size and other uncertainties are likely to cause unstable and unreliable for following vehicle detection algorithm,this paper proposed a novel cost-effective system,based on longitudinal projection in time-space domain and relative motion analysis.The algorithm used directional filter in contrast space and then estimated vehicle edge with probabilistic Hough transform.According to time-domain projection,following vehicle tracking trajectory can be obtained.Furthermore,this paper used optical flow to track characteristic corners,in other to separate target vehicle from background.On the basis of above,the algorithm integrated detection results of the above two methods,and then an overtaking warning algorithm was proposed based on behavior detection.The test results show that the method can extract myopia campaign following vehicle quickly and accurately in the structural road,and it also has a strong immunity to environmental interference and type change. 

Key words: following vehicle, overtaking warning, airspace track, motion detection