LiDAR点云数据坐标转换关键技术研究  

Research on Key Technologies of LiDAR Point Cloud Data Coordinate Transformation

作　　者：颜加斌 张宇琳 王友昆 董国桥 YAN Jiabin;ZHANG Yulin;WANG Youkun;DONG Guoqiao(Yunnan University of Business Management,Kunming 650304,China;Kunming Surveying and Mapping Institute,Kunming 650051,China)

机构地区：[1]云南经济管理学院,云南昆明650304 [2]昆明市测绘研究院,云南昆明650051

出　　处：《城市勘测》2024年第3期101-105,共5页Urban Geotechnical Investigation & Surveying

基　　金：云南省教育厅科学研究基金项目(2022J1290)。

摘　　要：LiDAR技术近年来日趋成熟,在各行业得到了广泛应用。LAS文件格式标准,为LiDAR点云数据交换提供了便利。为实现点云数据的坐标转换,本文基于LASlib库和坐标转换模型,实现了LAS文件的坐标转换,并利用工程项目验证了其正确性。同时,针对不同坐标转换模型的坐标转换效率进行了分析,对LAS文件的坐标转换具有指导意义。LiDAR technology has become more and more mature in recent years and has been widely used in various industries.The LAS format standard provides convenience for LiDAR point cloud data exchange.In order to realize the coordinate transformation of point cloud data,this paper realizes the coordinate transformation of LAS files based on LASlib library and coordinate transformation model,and verifies its correctness by using engineering projects.At the same time,the coordinate conversion efficiency of different coordinate conversion models is analyzed,which has guiding significance for the coordinate conversion of LAS files.

关 键 词：LIDAR LAS 坐标转换 平面四参数模型 布尔莎七参数模型 

分 类 号：P225.2[天文地球—大地测量学与测量工程] P226.3[天文地球—测绘科学与技术]