Based On Monocular Vision The Obstacles Ahead The Vehicles Distance Measurement

Due to the rapid development of modern society, the number of cars increaserapidly. In order to give the driver more reaction time to make the right judgment,improve the traffic problems, and reduce increasingly serious traffic accident rate. Thispaper based on monocular vision method applied to vehicle auxiliary driving systemmeasured the distance between the obstacles and the vehicle. The mainly researchcontents and results has been summarized as follows:(1)Through the MATLAB software, the camera intrinsic parameters and externalparameters can been calibrated. Then we can compute the relations of the worldcoordinate system and the image coordinate system. In this reseaches we considered thecamera’s distortion, and analyzed the error’s affects of the distortion.(2)Applicating the image processing toolbox(IPT) function segment the image’sregions of interested(ROI), process the image with morphology operation. Finally itdetected the obstacle’s edge, obtained the feature information of the obstacle’s pixelcoordinates.(3)This paper expounds the working principle of monocular visual range, andcalculates the variety of obstacle’s distance by the expriments. Through the analysis ofthe experimental data, It analyses the causes of errors between the measuring distanceand the actual distance. Then it makes the linear correction and gets the ideal effect. Theexpriments proved that the application of monucular measurement on the vehicles.Concluding above reseach content, the methods proposed in this dissertation hassome practicability. To help the motorist have a accurate cognition with the obstaclesand take corrective actions.