摘要
针对道路改造测量对于高程方向的高精度要求,研究通过在车载移动测量系统轨迹沿线布设标靶点,利用水准测量得到的标靶点高程对三维激光点云高程进行精度校正,将车载移动测量系统应用于高精度道路测量。实际案例表明,在布设标靶进行高程校正后,高程精度可以达到1.3 cm,完全满足道路测量的精度要求。
To meet the high requirement of elevation accuracy in road reconstruction survey,this paper studies the elevation correction of 3D laser point cloud elevation by setting up target along the track of mobile survey system,using the target point elevation obtained from leveling survey,and applying the vehicle mobile survey system to high precision road survey.The actual production case shows that after setting the target for elevation correction,the elevation accuracy can reach 1cm,which fully meets the accuracy requirements of road measurement.
作者
潘家宝
Pan Jiabao(Fuzhou Investigation and Surveying Institute,Fuzhou 350108,China)
出处
《城市勘测》
2020年第6期116-118,共3页
Urban Geotechnical Investigation & Surveying
关键词
三维激光扫描
激光点云
移动测量
高程校正
道路测量
3D laser scanning
point clouds
vehicle mobile measurement
elevation correction
road survey
