移动测量系统点云精度评定及应用分析  

Accuracy assessment and application analysis of point clouds in mobile surveying system

作　　者：徐工[1] 程效军[1] 

机构地区：[1]同济大学测绘与地理信息学院,上海200092

出　　处：《工程勘察》2013年第9期42-46,共5页Geotechnical Investigation & Surveying

基　　金：国家自然科学基金(40971241)

摘　　要：随着移动测量技术的快速发展,移动测量系统的精度受到越来越多的关注。在分析移动测量系统误差影响因素的基础上,针对主要客观因素车速和扫描距离对移动测量点云数据的影响,设计了多种实验,从点、线、面等三个方面比较和分析了实验结果的绝对误差、相对误差和点位误差,对点云数据精度进行评定,并确定了车速、扫描距离对移动点云精度的具体影响尺度。据此给出了不同比例尺地形图测量时的移动测量方案,提高了移动测量数据的利用效率,为工程实践提供了参考。With the development of mobile surveying technology,people pay more and more attention to the accuracy of Mobile Surveying System（MSS）.Based on analyzing error factors of MSS,in view of the main influences of vehicle speed and scanning distance on the accuracy of point clouds data,a variety of experiments are designed,point clouds precision assessment are made by comparing and analyzing the absolute error,relative error and position error of experiments results reflecting from point,line,area,and the specific influence scale of the vehicle speed and the scanning distance for the point clouds are determined.Accordingly,kinds of mobile surveying solutions in different topographic map scale are proposed and the efficiency of mobile surveying data is improved.

关 键 词：移动测量系统 激光点云 精度评定 应用分析 点位误差 

分 类 号：P234.4[天文地球—摄影测量与遥感]