车载移动测量系统点云精度评定方法  

Point clouds accuracy assessment method of mobile mapping system for land vehicle

作　　者：徐寿志 方爱平[1,2,3] 杨凡 李莹[1,2,3] XU Shonzhi;FANG Aiping;YANG Fan;LI Ying(National Metrology Station of Surveying,Mapping and Geoinformation,Beijing100039,China;National Calibration Centerfor Electro-optical Distance Meter,Beijing100039,China;National Calibration Center for Surveying Instruments,Beijing 100039,China)

机构地区：[1]国家测绘地理信息计量站,北京100039 [2]国家光电测距仪检测中心,北京100039 [3]中测国检(北京)测绘仪器检测中心,北京100039

出　　处：《测绘科学》2019年第6期187-192,共6页Science of Surveying and Mapping

基　　金：中国测绘科学研究院基本科研业务费项目(7771708)

摘　　要：为了对车载移动测量系统点云精度进行客观准确的评价,该文提出了利用室外三维检测场,借助自制的反射纸、球形靶标和特征地物,获取特征点的高精度三维坐标和特征线的长度值,通过与系统解算出来的结果进行比对,评价了系统的绝对精度、相对精度和重复性精度。试验结果表明,该文提出的方法可以对厘米级车载移动测量系统进行点云精度评定,方法切实可行,为相关检测标准的制定提供技术支持。In order to objectively and accurately evaluate the point cloud accuracy of mobile mapping system for land vehicle(VMMS),three methods were proposed in this paper,with the self-made reflective paper,spherical target and features in the three-dimensional testing field,to obtain the high precision three dimensional coordinates of the feature points and the feature lines length by using traditional method.Then the absolute accuracy,relative accuracy,and repeatability of the system were evaluated by comparing the results calculated with the system.The results showed that our methods could evaluate the accuracy of the centimeter-class VMMS.The methods are feasible,and provide technical support for implementing relevant detection standards.It has certain practical significance and reference value.

关 键 词：移动测量 精度评定 绝对精度 相对精度 重复性精度 

分 类 号：P237[天文地球—摄影测量与遥感] P246[天文地球—测绘科学与技术]