地面三维激光扫描数据拼接方法评估  

Evaluation of data registration methods in terrestrial 3D laser scanning

作　　者：程宇航 林宇龙 白征东[1] 辛浩浩 CHENG Yuhang;LIN Yulong;BAI Zhengdong;XIN Haohao(Department of Civil Engineering, Tsinghua University, Beijing 100084, China;State Grid Jibei Electric Power Company, Beijing 100053, China)

机构地区：[1]清华大学土木工程系,北京100084 [2]国网冀北电力有限公司,北京100053

出　　处：《测绘工程》2021年第1期20-23,29,共5页Engineering of Surveying and Mapping

摘　　要：点云数据拼接方法直接关系到地面三维激光扫描仪的测量精度和效率,通过实验对5种拼接方法的精度进行评估。结果表明,50 m测量距离内,5种点云数据拼接方法的精度分别为1.33 mm、8.88 mm、2.71 mm、4.29 mm和6.07 mm,其中标靶拼接的精度最高。综合评估拼接方法的精度、效率,为实际工程提供参考方案。The point cloud data registration method directly affects the measurement accuracy and efficiency of the terrestrial 3D laser scanner.This paper systematically introduces five methods of point cloud data registration in terrestrial laser scanning,which are based on targets,feature points,point cloud view,known back sight point and resection respectively.In this paper,the accuracy of the five registration methods is evaluated in experiments.The result shows that the accuracies of the five registration methods are respectively 1.33,8.88,2.71,4.29 and 6.07 mm respectively when measurement distance is within 50m and the accuracy of registration based on targets is the highest.Meanwhile,this paper comprehensively considers the accuracy and efficiency of the registration methods,which can shed a light on the selection of suitable registration methods under different actual engineering circumstances.

关 键 词：三维激光扫描仪 点云 数据拼接 精度评估 

分 类 号：P228[天文地球—大地测量学与测量工程]