ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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Articles | Volume IV-2/W1
https://doi.org/10.5194/isprs-annals-IV-2-W1-271-2016
https://doi.org/10.5194/isprs-annals-IV-2-W1-271-2016
05 Oct 2016
 | 05 Oct 2016

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

B. Gorte, S. Zlatanova, and A. Leidner

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.