基于颜色和运动信息的夜间车辆检测方法.pdf

10 2 Vol. 10, No. 2 2005 2 Journal of Image and Graphics Feb. , 2005 刘 勃 周荷琴 魏铭旭 (, 230027) , , , , , , , ; ; , , RGB : TP391. 41 : A : 1006 8961( 2005) 02 0187 05 VehicleDetection atNightUsing Color andMotion Information L IU Bo, ZHOU H e qin, WEIM ing xu (D epartment of Automation, University of Science Technology of China, H ef ei 230027) Abstract In the video detection system of urban traffic flow, it is a hard work to detect veh icle at night. The traditional m ethods are based on veh icle headlights and headlight beam s using m athem atical m orphology, they are sensitive to environm ent illum ination w ith high compu ting cost. Th is paper presents a m ethod based on color and m otion inform ation. Firstly, the algorithm detects and tracks veh icle taillights using color inform ation on the mi ages, then m atches the detected vehicle taillights using motion inform ation and prioriknow ledge, finally vehicle flow is com puted. A s shown in expermi ents, the algorithm can exactly detectm oving veh icles at n ight and it is robust to rainy conditions. K eywords intelligent transportation system, vehicle detection, RGB color space, motion track ing , 1 , CCD , , [ 5, 6] , , , , , , , , , ,