A Building Reconstruction Method Integrated with LiDAR and DLG

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Provided by: Atlantis Press
Topic: Cloud
Format: PDF
Using airborne Light Detection And Ranging (LiDAR) point cloud data for building reconstruction, is widely used in urban construction, planning and dynamic monitoring, etc. So far, it is still difficult to applied in rapid modeling in large areas. In this study, based on the GIS platform, with the utilization of large scale Digital Line Graph (DLG) combined with airborne LiDAR point cloud data, a rapid modeling method is established. The basic idea is to segment point cloud through histogram threshold analysis and DTM test, then to extract elevation from point cloud by the use of DLG, finally to build the 3D model.
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