中文摘要：

在地面三维激光扫描仪进行三维建模过程中,需要对不同测站的点云进行拼接。为了提高不同测站点云拼接精度,本文开展了球形标靶表面扫描点数量、标靶的分布和数量及扫描距离4个因素对三维激光扫描仪不同测站下点云拼接精度的影响研究。采用法如（FOCUS）三维激光扫描仪开展了不同扫描分辨率、不同标靶数量、不同标靶分布和不同距离下的点云拼接试验,并采用SENCE软件对点云进行了拼接精度分析。试验结果表明,选择两测站的标靶表面的扫描点数量大致相等,并将4个标靶作为连接点,且放置在不同高度不规则排列时,点云拼接的精度最优。

英文摘要：

In the process of 3D modeling of terrestrial 3D laser scanner,it is necessary to splice the point cloud of different stations.In order to improve the accuracy of point cloud registration,the influence of four factors,such as the number of scanning points on the surface,the distribution and the number of targets,and the scanning distance,on the accuracy of the point cloud registration in different stations of the 3D laser scanner is studied.FOCUS 3D laser scanner was used to simulate the different point of view,the number of targets,the distribution of different targets and different points,and then,the SENCE software is used to analyze the precision of point cloud.The experimental results show that the accuracy of the point cloud stitching is the best when the number of scanning points on the target surface of the two stations is approximately equal,and the 4 targets are used to connected and placed in the irregular arrangement of different heights.