Wide-scoped Surrounding Top-view Monitor for Advanced Driver Assistance Systems
Din-Chang Tseng, Yu-Chi Lin, Tat Wa Chao · 2015
To improve the scope range of the traditional around view monitor (AVM) systems for Advanced Driver Assistance Systems (ADAS), we propose a wide-scoped surrounding top-view monitor (STM) system with the same equipment as the traditional AVM system.In the proposed system, four wide-view cameras are mounted on front, rear, and the both sides of the vehicle to capture sequential images; then each four images are composed into a single seamless surrounding top-view image of the vehicle with the view radius more than 30 meters.The proposed system consists of eight stages: camera calibration, vignetting effect elimination, distortion calibration, top-view transformation, image registration, brightness uniformity, color blending, and bowl model mapping.The system performance and image quality are evaluated in experiment.