点云密度对采动区路面建模精度的影响  

Influence of Point Cloud Density on Model Accuracy of Highway Scanning in Mining Area

作　　者：孟彦杰 张豪杰[1] 张正华[1] 查剑锋[1,2] 

机构地区：[1]中国矿业大学环境与测绘学院,江苏徐州221116 [2]国土环境与灾害监测国家测绘地理信息局重点实验室,江苏徐州221116

出　　处：《北京测绘》2017年第01S期148-152,共5页Beijing Surveying and Mapping

摘　　要：三维激光扫描技术作为采动区公路变形监测技术的重要发展方向,其扫描过程中点云分辨率的设置,会对实际扫描时间、数据后处理工作量与公路DEM生成的精度产生显著影响。本文使用RigelVZ-1000三维激光扫描仪分析了采动区沥青路面测量的单点高程实测精度;其次分析了预设点云分辨率与点云建模精度、点云密度与激光入射角和测量距离之间的关系,以实测实验数据为基础,得到三维激光扫描仪应用于采动区路面测量的合理点云分辨率的设置,为实际测量工作与测量方案的设计提供依据。3D laser scanning technology is an important technique employed in mining area highway deformation monitoring.The scanning process point cloud resolution have a significant impact to the actual scan time,data post-processing work and the precision of the DEM.In this paper,Rigelvz-1000 3D laser scanner is used to analyze the measurement accuracy of single point elevation of asphalt pavement in mining area.Moreover,analyzes the relationship between the preset point cloud resolution and point cloud model precision,the point cloud density and laser incident Angle or the measuring distance.On the basis of experimental data,get the proper point cloud density and measuring distance setting of using 3D laser scanner survey high grade highway,which can provide the theory basis for real work survey and the design of Measurement scheme.

关 键 词：三维激光扫描 高等级公路 精度分析 

分 类 号：P204[天文地球—测绘科学与技术] P258