Analysis of Tin-structure Parameter Spaces in Airborne Laser Scanner Data for 3-d Building Model Generation
نویسنده
چکیده
This paper presents a data-driven method for automatic building reconstruction from raw airborne laser scanner data. The method utilises a TIN-structure that is calculated into the point cloud. The parameters of every TIN-mesh are mapped into a 3D trianglemesh parameter space, which is then analysed using a cluster analysis technique. By analysing the clusters, significant roof planes are derived from the parameter space while taking common knowledge of roofs into account. However, no prior knowledge of the roof as such as the number of roof faces is required. Analysing the intersected roof faces, the roof outlines are determined and the ground plan is derived. The derived building models were evaluated for their correctness and geometric accuracy. Well-defined building roof planes can be extracted and reconstructed successfully, while disturbances such as dorms on buildings or geometric discrepancies in laser scanner data strip overlaps may significantly reduce the applicability of the technique.
منابع مشابه
An Approach to 3D Building Model Reconstruction from Airborne Laser Scanner Data Using Parameter Space Analysis and Fusion of Primitives
Within this work an approach was developed, which utilises airborne laser scanner data in order to generate 3D building models. These 3D building models may be used for technical and environmental planning. The approach has to follow certain requirements such as working automatically and robust and being flexible in use but still practicable. The approach starts with small point clouds containi...
متن کامل3d Building Model Generation from Airborne Laser Scanner Data Using 2d Gis Data and Orthogonal Point Cloud Projections
Human operators use an intuitive procedure of rotating laser scanner point clouds into specific projections when trying to understand the structure of buildings contained in the data. This procedure has been formalized and incorporated into an automatic building model reconstruction procedure. The method derives the building orientation from the analysis of height histogram bins. Using the orie...
متن کاملAn Integrated Approach to Accurate Dem Generartion Using Airborne Full Waveform Lidar Data
In this study, full waveform LiDAR data were exploited to improve the generation of a large-scale digital elevation model (DEM). Building on the methods of progressive generation of triangulation irregular network (TIN) model reported in the literature, we proposed an integrated approach. In this method, echo detection, terrain identification, and TIN generation were performed synergically and ...
متن کاملDerivation of Roof Types by Cluster Analysis in Parameter Spaces of Airborne Laserscanner Point Clouds
The paper describes a method that extracts planar roof faces of building objects from point clouds obtained by a pre-segmentation of airborne laserscanner data. The method utilises a TIN-structure that is calculated into the point cloud. The parameters of every TINmesh are mapped into a triangle-mesh parameter space, which is then analysed by cluster analysis techniques. Both the utilisation of...
متن کاملA Deformed Shape Monitoring Model for Building Structures Based on a 2D Laser Scanner
High-rise buildings subjected to lateral loads such as wind and earthquake loads must be checked not to exceed the limits on the maximum lateral displacement or the maximum inter-story drift ratios. In this paper, a sensing model for deformed shapes of a building structure in motion is presented. The deformed shape sensing model based on a 2D scanner consists of five modules: (1) module for acq...
متن کامل