点云测站间标靶布设对配准精度的影响

Effects on accuracy of point cloud registration by target setting between the stations

地面三维激光扫描常涉及到测站间标靶布设及点云配准,而标靶布设对点云配准和后续数据处理有着重要影响。本文对测站间不同标靶的布设方式进行组合试验,研究标靶布设对点云配准的影响。实验表明,转换精度与点到最近公共点的距离存在一定距离关系。同时合理布设标靶,可降低标靶自身误差对转换成果的影响。

It often involves the setting of the targets and the registration between point clouds of different stations in the terrestrial laser scanner. The setting of the target has great influence on the registration and the later data processing. This paper tests different target setting between the stations to study its the effects on the accuracy of the registration. The result shows that the conversion accuracy relates to the distance from the conversion point to the nearest common point. Also the reasonable target setting can reduce the influence on the conversion accuracy caused by the target＇s own error.