车载激光扫描技术在道路三维实景模型制作中的应用

Application of Vehicle-borne Laser Scanning Technology in Making Road 3D Real Scene Model

随着“智慧城市”的提出与建设,道路三维实景模型将在智慧交通、城市规划等领域发挥了越来越重要的作用。本文以车载激光扫描技术采集的道路点云数据为依托,基于道路点云数据提取道路要素三维矢量信息,并以矢量信息为基础制作完整的道路三维实景模型。将本文方法用于广州市越秀区某区域道路模型制作中,对制作完成的模型进行精度检验,结果表明基于车载扫描技术的道路三维实景模型制作可在满足精度要求的前提下提高作业效率、减少外业工作量,验证了基于车载激光扫描技术应用于道路三维实景模型制作的可行性。

With the proposal and construction of“smart city”,the road 3D real scene model will play a more and more important role in the fields of smart transportation,urban planning and so on.Based on the road point cloud data collected by vehicle-borne laser scanning technology,this paper extracts the three-dimensional vector information of road elements based on the road point cloud data,and makes a complete road three-dimensional real scene model based on the vector information.The method in this paper is applied to the production of a regional road model in Yuexiu District,Guangzhou,and the accuracy of the completed model is checked.The results show that the production of road three-dimensional real scene model based on vehicle-borne scanning technology can improve the operation efficiency and reduce the field workload on the premise of meeting the accuracy requirements.The feasibility of applying vehicle-borne laser scanning technology to the production of road three-dimensional real scene model is verified.