地面三维激光扫描数据多站配准方法  

Methods on multi station registration of ground 3D laser scanning data

作　　者：李晓亮[1,2] 李海鹏 张筠卓[1,2] LI Xiaoliang;LI Haipeng;ZHANG Junzhuo(Beijing Institute of Surveying and Mapping,Beijing 100038,China;Beijing Key Laboratory of Urban Spatial information Engineering,Beijing 100038,China)

机构地区：[1]北京市测绘设计研究院,北京100038 [2]城市空间信息工程北京市重点实验室,北京100038

出　　处：《北京测绘》2023年第5期676-682,共7页Beijing Surveying and Mapping

基　　金：北京市科技计划(D171100007417003)。

摘　　要：地面激光扫描设备凭借其良好的场地适应性、数据获取的稳定性优势,且随着设备的小型化、获取数据的高速化、数据配准的自动化等技术进步,越来越适应了更广阔的工程应用方向,也更频繁地应用于对精度要求比较高的大面积场景测绘工程项目和室内外一体化三维扫描项目。但在实际应用中,针对这种大面积场景测绘工程项目,通常需要布设上百甚至近千站的扫描测站,很难对这些上百甚至近千站的扫描测站数据进行准确的配准,最终获取无缝化的大范围整体点云成果。本文结合地面三维激光扫描技术的应用需求、点云数据特点和配准方法特性,分析在点云数据配准过程中与传统测绘工程原则的差异性,进而总结出一种大范围多扫描站的配准原则,并结合多个不同场景下的地面三维激光扫描应用项目对该配准原则进行了验证。Terrestrial laser scanning equipment has become more and more adaptable due to its good site adaptability and the stability advantages of data acquisition.It has a broader engineering application direction,and is more frequently used in largearea scene surveying and mapping projects of indoor and outdoor integrated three-dimensional(3D)scanning projects that require relatively high accuracy.However,in practical applications,for such large-area scene surveying and mapping projects,it is usually necessary to deploy hundreds or even nearly a thousand scanning stations,and it is difficult to accurately register the data of these hundreds or even thousands of scanning stations,and finally obtain a seamless large-scale overall point cloud result.Combining the application requirements of ground 3D laser scanning technology,the characteristics of point cloud data and the characteristics of registration methods,this paper analyzed the differences between the registration process of point cloud data and the principles of traditional surveying and mapping engineering,and then summarized a large-scale multiscanning station.The registration principle was verified by combining several ground 3D laser scanning application projects in many different scenarios.

关 键 词：地面激光扫描 点云配准 精度控制 多站配准 相对精度 

分 类 号：P258[天文地球—测绘科学与技术]