Building Reconstruction Using Lidar Data
نویسنده
چکیده
Within the GIS world, LIDAR becomes an important and convenient data source. Many researchers are developing algorithms to extract a bare-earth model and building boundaries from LIDAR data. This paper presents two different methods for building reconstruction using LIDAR data. The first is a traditional method using filtered LIDAR data and combining cadastral building boundaries data (for example, Ordnance Survey Landline data). The second uses the Voronoi Diagram to trace building outlines. To extrude buildings, we use Computer Aided Design (CAD)-type Euler Operators to create a TIN model and then we use the operators to modify the TIN, e.g. extrude buildings, interactive editing or further spatial analysis.
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