基于视觉测量障碍位置的车载摄像机标定  

On-board Camera of Calibration Based on Vision Measurement the Position of Obstacle

作　　者：胡亚利[1] 马兆敏[1,2] 胡蓉[1] 胡波[1,2] 

机构地区：[1]广西科技大学电气与信息工程学院 [2]广西汽车零部件与整车技术重点实验室(广西科技大学),柳州545006

出　　处：《科学技术与工程》2014年第31期249-251,255,共4页Science Technology and Engineering

基　　金：广西教育厅高校科研基金资助项目(LX2014199);广西重点实验室建设项目(14-045-44);广西汽车零部件与整车技术重点实验室建设项目基金(14-A-03-03)

摘　　要：障碍位置的视觉测量是车辆辅助驾驶系统研究的一个重要领域,而视觉测量的关键是对车载摄像机的标定。通过比较分析视觉测量中摄像机光轴中心线与景物面之间的几何关系,针对车载摄像机提出了以标定点在图像上均匀分布成网格状进行标定,利用网格插值建立图像坐标和实际坐标之间的映射关系,即车载摄像机的标定模型。经验证该模型简单、精度高,能够有效地测量出障碍的位置信息,适用于车载摄像机的标定。Vision measuring the position of the obstacle is an important field of vehicle auxiliary driving system, but the key of visual measurement is calibrated on-board cameras. Through the comparative analysis of the geometric relationship between camera optical axis center line and scene surface, for on-board camera that let calibration points uniformly distributed in a grid on the image calibration was proposed. To establish the mapping relation be- tween the image coordinates and the actual coordinates using grid interpolation, namely the calibration model of on- board camera. By verifying the model is simple, high accuracy, the method can effectively measure the position of obstacles, suitable for the calibration of the on-board camera.

关 键 词：视觉测量 摄像机的标定 网格插值 

分 类 号：TP391.76[自动化与计算机技术—计算机应用技术]