Name
Abstract | ||
|---|---|---|
The modelling or reconstruction of buildings has tw o aspects - on the one hand we need a data structure and the associated geometric informa tion, and on the other hand we need a set of tools to construct the building incrementally. T his paper discusses both of these aspects, but starts from the simpler exterior model and geometry determination, and then looks at representations of the building interiors. Our starting point is a set of raw LIDAR data, as t his is becoming readily available for many areas. This is then triangulated in the x-y plane u sing standard Delaunay techniques to produce a TIN. The LIDAR values will then show buildings as regions of high elevation compared with the ground. Our initial objective is to extrude these buildings from the landscape in such a manner that they have well defi ned wall and roof planes. We may have already been provided with the building footprint f rom national mapping information, or we may need to extract it from the triangulation. We d o this by superimposing a coarse Voronoi cell structure on the data, and identifying wall se gments within each. We then examine the triangulated interior (roof) data, identify planar segments and connect them to form the final surface model of the building embedded in the terra in. This is done using Euler Operators and Quad-Edges. Building interiors are added by using a n extension of these. |
Year | DOI | Venue |
|---|---|---|
2006 | 10.1007/978-3-540-36998-1_28 | 3D-GIS |
Keywords | Field | DocType |
data structure | Data structure,Engineering drawing,Computer science,Voronoi diagram,Lidar data | Conference |
Citations | PageRank | References |
1 | 0.40 | 4 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Christopher M. Gold | 1 | 289 | 35.07 |
| Rebecca O. C. Tse | 2 | 22 | 5.80 |
| Hugo Ledoux | 3 | 231 | 22.27 |