基于三维激光点云的道路参数化建模方法  

The Parametric 3D Modeling Method of Road Based on 3D Laser Point Cloud

作　　者：祖帅 ZU Shuai(Fuzhou Investigation and Surveying Institute Co.,Ltd.,Fuzhou 350108,China)

机构地区：[1]福州市勘测院有限公司,福建福州350108

出　　处：《城市勘测》2023年第6期70-73,共4页Urban Geotechnical Investigation & Surveying

摘　　要：为满足道路精细化管理和快速三维建模的需要,本文基于三维激光点云数据,通过分析并设计道路数据结构和参数信息,采用参数化建模的方法实现道路自动三维建模。首先基于三维激光点云数据提取矢量和参数信息,建立道路参数化模型库;然后针对道路路面和地物不同的数据结构,设计了路面连续规则三角网算法和独立地物放样算法;最终根据参数和算法驱动道路自动三维建模。以车载移动测量系统采集的某道路三维激光点云进行试验,验证该方法的可行性和精度可靠性。In order to meet the needs of delicacy management and fast 3D modeling in road,based on 3D laser point cloud data,this paper analyzes and designs the road data structure and parameter information,and adopts the parametric modeling method to realize automatic 3D road modeling.Firstly,based on 3D laser point cloud data,vector information and parameter information are extracted to establish road parametric model library;Then,according to the different data structures of road surface and features,Through the design of continuous regular triangle algorithm and independent feature lofting algorithm,and finally the three-dimensional road modeling driven by parameters and algorithms is realized.In this paper,a road 3D laser point cloud collected by the vehicle mobile measurement system is used to carry out the test,and this method is considered to be feasible and accurate.

关 键 词：三维激光点云 参数化建模 数据结构设计 模型库 精度分析 

分 类 号：P208[天文地球—地图制图学与地理信息工程] P225.2[天文地球—测绘科学与技术]