基于车载LiDAR技术的道路纵横断面自动提取方法  

Automatic Extraction Method of Road Vertical and Horizontal Sections Based on Vehicle LiDAR Technology

作　　者：罗相涛 LUO Xiangtao(Guangzhou Municipal Engineering Design and Research Institute Co.,Ltd.,Guangzhou 510060,China)

机构地区：[1]广州市市政工程设计研究总院有限公司,广东广州510060

出　　处：《地理空间信息》2023年第9期104-106,共3页Geospatial Information

基　　金：国家自然科学基金资助项目(41704027);广西自然科学基金资助项目(2017GXNSFDA198139、2017GXNSFDA198016);广西空间信息与测绘重点实验室开放基金资助项目(19-050-11-02);广西“八桂学者”岗位专项资助项目。

摘　　要：为快速高效提取道路中线上的纵横断面,利用CAD VBA开发了纵横断面提取工具。首先通过车载LiDAR技术获取道路沿线三维地表信息,再结合点云处理软件和纵横断面提取软件,设计了适用于道路纵横断面测量的技术流程,实现了道路纵横断面的自动快速提取,免去了大量的人工野外实测工作,并可输出适用于不同道路软件的断面格式。通过海宁县某道路改造工程实例,验证了该方法的可行性。结果表明,该方法可自动高效获取高精度的纵横断面,能满足道路维护测量、改扩建测量的需要。In order to realize the rapid and efficient extraction of vertical and horizontal sections on the road center line,we developed a tool for extracting vertical and horizontal sections using CAD VBA.We used vehicle LiDAR technology to obtain 3D surface information along the road at first.And then,combining with the point cloud processing software and vertical and horizontal section extraction software,we designed the technical process suitable for the road vertical and horizontal section measurement,which could realize the automatic and rapid extraction of road vertical and horizontal sections,without a lot of manual field measurement work,and output the section format suitable for different road software.Finally,taking a road reconstruction project in Haining County for example,we verified the feasibility of this method.Therefore,the method in this paper can automatically and efficiently obtain high-precision vertical and horizontal sections,which can meet the needs of road maintenance measurement,reconstruction and expansion measurement.

关 键 词：车载LiDAR 航迹解算 点云处理 纵横断面提取 

分 类 号：P232[天文地球—摄影测量与遥感]