Volume IV-2/W1
ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., IV-2/W1, 271-276, 2016
https://doi.org/10.5194/isprs-annals-IV-2-W1-271-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., IV-2/W1, 271-276, 2016
https://doi.org/10.5194/isprs-annals-IV-2-W1-271-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

  05 Oct 2016

05 Oct 2016

SWEEPING RASTER CROSS SECTIONS ALONG TRAJECTORIES IN THREE-DIMENSIONAL VOXEL MODELS

B. Gorte1, S. Zlatanova2, and A. Leidner3 B. Gorte et al.
  • 1Dept. of Geoscience and Remote Sensing, Delft University of Technology, the Netherlands
  • 2Dept. of Urbanism, Delft University of Technology, the Netherlands
  • 3New York Geospatial Catalysts (NYGEOCATS), New York, USA

Keywords: Sweeping, voxelization, 3D grid, underground infrastructure model

Abstract. The paper presents a new algorithm to reconstruct elongated objects defined by cross sections and trajectories in gridded threedimensional models represented as voxels. Examples of such objects are the elements of underground infrastructure in urban environments, such as pipes, conduits and tunnels. Starting from a basic methodology, which is based on distance transformations, the algorithm is extended in three ways on the basis of Voronoi datasets being produced alongside.