A Rapid Construction Method of LoD1.3 Level 3D Building Model Based on Multi-source Data
In recent years,the application of 3D digital base in urban space monitoring and urban planning has become more and more extensive,and how to quickly build 3D base in large scenes has become the focus of research.In this paper,a rapid construction method of LoD1.3 level 3D building model based on multi-source data studied.The building point cloud data is extracted through DLG data constraints to calculate the top elevation,the bottom elevation of the building is extracted based on DEM data,and the 3D stretching modeling is conduc-ted based on DLG,bottom elevation and top elevation.The rapid construction of LoD1.3-level model of urban large scene buildings is real-ized.The experiment shows that it takes 56.11s to build a LOD 1.3-level 3D model of 0.8 square kilometers built-up area in this paper.The meansquare error of the 3D model is 2.19m,and it has attribute information.The rapid construction method of LoD1.3-level building model based on multi-source data proposed in this paper has been applied in 3D Changzhou construction,which effectively improves the construction efficiency of 3D building model.
point cloudDEMelevation extractionLoD1.3-level 3D model3D construction
NETL
NSTL
万方数据
