A Traffic Camera Calibration Method Based on Multi-rectangle Calibrating a Camera Using Multi-rectangle Constructed by Mark Lines in Traffic Road

摘要：

　　As distance detection is frequently needed in modern traffic management, camera calibration has a significant influence on the accuracy of distance detection.The traditional calibration methods usually need a calibration target, and the exact distance of calibration points has to be measured.In this paper, according to the camera imaging model, we put forward a calibration method based on multi-rectangle, which constructs several rectangles with the mark lines of the traffic road.Without measuring the internal or external parameters of the camera or the exact distance of calibration point, we only need the side lengths of rectangles and the image coordinates of the rectangular vertexes to establish the video image distance conversion model.For improving the accuracy of conversion, we use multiple rectangles to determine the coordinates of the vanishing points and modify the coordinates of the rectangular vertexes.Experimental results show that our method is more accurate when compared with the mainstream methods.

关键词： distance detection camera calibration multi-rectangle parameter modification

作者: Liying Lu Xiaobo Lu Saiping Ji Chen Tong

作者单位: Key Laboratory of Measurement and Control of CSE Ministry of Education School of Automation, Southeast University Nanjing, 210096, China

会议类型: 国际会议

会议名称: 8th International Conference on Intelligent Information Processing(2014年IFIP智能信息处理国际会议)

会议地点: 杭州

会议语种:英文

页码: 230-238

在线出版日期: 2014-10-01（万方平台首次上网日期，不代表论文的发表时间）