融合多源数据的城市三维建模方法探索  

Research on 3D modeling method of city with multi-source data fusion

作　　者：胡晓静 刘钰 陈延博 李书丹 李遥 HU Xiaojing;LIU Yu;CHEN Yanbo;LI Shudan;LI Yao(The Second Topographic Surveying Brigade of Ministry of Natural Resources,Xi an 710054,China)

机构地区：[1]自然资源部第二地形测量队,陕西西安710054

出　　处：《测绘通报》2023年第11期128-131,共4页Bulletin of Surveying and Mapping

基　　金：陕西测绘地理信息局科技创新项目(DX2K2021-09)。

摘　　要：为发挥多源数据的优势,弥补单一数据的局限性,本文探索多源数据融合的关键技术,提出了一种多源数据的融合建模方法。利用该方法实现了陕西某大院城市实体三维重建,分别构建LOD1—LOD3级别的城市模型,并结合实测控制点成果对建模成果精度及模型精细度进行了评价。结果表明:该方法能够高效地实现多源数据融合建模;融合数据建模成果在模型精细度和成果精度上都有提高;多源融合数据构建的不同细节程度的城市模型精度均符合CityGML对于城市实体的要求。In order to make full use of the advantages of multi-source data and avoid the defects of single data,we use multi-source data to explore the key technologies of multi-source data fusion.Subsequently,a multi-source data fusion modeling method was proposed,which is used to realize the 3D reconstruction of urban entity of a compound in Shaanxi province,and the LOD1—LOD3 level city models are constructed respectively.Finally,the accuracy of the modeling results and the precision of the model were evaluated by using the measured control points reference.The results show that this method can realize multi-source data fusion modeling efficiently.The results of fusion data modeling have improved the precision and precision of the model.The accuracy of the city model with different levels of detail constructed by multi-source fusion data meets the requirements of CityGML for urban entities.

关 键 词：三维重建 多源数据融合 点云配准 点云重组 城市实体 

分 类 号：P237[天文地球—摄影测量与遥感]