无人机影像点云与地面激光点云配准的三维建模方法  

3D modeling method of UAV image point cloud and ground laser point cloud registration

作　　者：段平[1,2,3] 李佳 李海昆[1,2,3] 王明果 王云川 DUAN Ping;LI Jia;LI Haikun;WANG Mingguo;WANG Yunchuan(College of Tourism and Geographic Sciences,Yunnan Normal University,Kunming 650500,China;Key Laboratory of Resources and Environmental Remote Sensing for Universities in Yunnan,Kunming 650500,China;Center for Geospatial Information Engineering and Technology of Yunnan Province,Kunming 650500,China;Yunnan Institute of Geological Sciences,Kunming 650051,China)

机构地区：[1]云南师范大学旅游与地理科学学院,云南昆明650500 [2]云南省高校资源与环境遥感重点实验室,云南昆明650500 [3]云南省地理空间信息工程技术研究中心,云南昆明650500 [4]云南省地质科学研究院,云南昆明650051

出　　处：《测绘工程》2020年第4期44-47,共4页Engineering of Surveying and Mapping

基　　金：云南省教育厅基金资助项目(2018JS148)。

摘　　要：地面激光扫描仪(Terrestrial Laser Scanner,TLS)能够快速地获取高大建筑物侧面点云数据,但较难获取其顶部点云数据。无人机(unmanned aerial vehicles,UAV)通过搭载五镜头倾斜摄影相机,能在短时间内获取高大建筑物的顶部影像,并基于摄影测量原理生成建筑物顶部的三维点云。文中针对高大建筑物的三维建模,首先通过UAV影像构建三维点云信息,然后将UVA影像点云与TLS点云数据进行配准后构建其三维模型。以云南师范大学呈贡校区武之楼为例,分别采用单一源的两种数据进行三维建模,并与两种配准后的数据进行三维建模作比较,实例结果表明,配准后的数据建模更完整,效果更好,能更完整地表现出建筑物的信息。The terrestrial laser scanner(TLS)is able to quickly acquire point cloud of tall buildings,but it is difficult to obtain the top point cloud.Unmanned aerial vehicles(UAVs)are equipped with a five-lens tilt camera which can capture the top image of tall buildings in a short period of time and generate a three-dimensional point cloud on top of the building based on photogrammetry theory.In this paper,for the 3D modeling of tall buildings,the 3D point cloud information is constructed by UAV image,and then the UVA image point cloud and TLS point cloud data are registered to construct its 3D model.Wuzhilou,Chenggong Campus,Yunnan Normal University is taken as an example.Two kinds of data is used for constructing 3D modeling.3D modeling before and after registration is compared.The example results show that the data modeling after registration is more complete,better.It can more complete representation of the building's information.

关 键 词：点云 无人机影像 地面激光扫描仪 三维建模 

分 类 号：P228[天文地球—大地测量学与测量工程]