高精度城市级实景三维Mesh建模与应用  

Research on high precision urban level realistic 3D Mesh modeling and application

作　　者：王永生 许颖 朱慧 赵春生 孙萌 施淮舰 WANG Yongsheng;XU Ying;ZHU Hui;ZHAO Chunsheng;SUN Meng;SHI Huaijian(Henan Remote Sensing Institute,Zhengzhou 450003,China;School of Urban and Rural Planning,Henan University of Economics and Law,Zhengzhou 450046,China;Henan Jindi Remote Sensing Surveying and Mapping Technology Co.,Ltd.,Zhengzhou 450003,China)

机构地区：[1]河南省遥感院,郑州450003 [2]河南财经政法大学城乡规划学院,郑州450046 [3]河南省金地遥感测绘技术有限公司,郑州450003

出　　处：《测绘工程》2025年第3期38-46,57,共10页Engineering of Surveying and Mapping

基　　金：国家自然科学基金资助项目(42271225);河南省科技攻关项目(242102321113);河南省高等学校重点科研项目(24B420001)。

摘　　要：以省县级市为研究区域,选用智能型无人机搭载5镜头倾斜相机,实施倾斜摄影数据采集,采用地物点、靶标点相结合的方式布设控制网,综合应用Das GET3D Cluster、Context Capture、SvsGeoModeler、MapEasy等软件,在规模化多节点大算力集群环境下进行空中三角测量、实景三维模型构建与精细化表达,生成高精度三维Mesh模型。基于高精度三维Mesh模型成果进行真正射影像(TDOM)制作、城市实景三维模型快速构建和城市地理信息公共服务平台地名/地址提取更新等。经检测,三维Mesh模型平面中误差可达0.0476 m,高程中误差可达0.0382 m,远高于规范要求。相关研究成果可为城市级实景三维模型构建及城市更新提供参考。This study focuses on the built-up areas of counties in Henan Province,employing an intelligent unmanned aerial vehicle(UAV)equipped with a five-lens oblique camera for high-precision image acquisition.A control network is established by combining ground control points and target points.Integrated applications of software such as Das GET3D Cluster,Context Capture,SvsGeoModeler,and MapEasy are utilized to perform aerial triangulatio,real-scene 3D model construction,and refined expression in a multi-node computing cluster environment,resulting in a high-precision 3D Mesh model.Based on the high-precision 3D Mesh model,tasks such as True Ortho-Image(TDOM)production,rapid construction of urban real-scene 3D models(LOD1.3),and extraction and update of geographic names and addresses on the urban geoinformation public service platform are carried out.The inspection results show that the plane median error of the 3D Mesh model reaches 0.0476 meters,and the elevation median error reaches 0.0382 meters,significantly surpassing the standard requirements.The relevant research findings provide valuable references for the construction of urban-scale real-scene 3D models and urban renewal.

关 键 词：无人机倾斜摄影 高精度三维Mesh建模 城市三维模型(LOD1.3) 真正射影像图 地名/地址调查建库 

分 类 号：P237.9[天文地球—摄影测量与遥感]