Title: Geometric Simplification for Efficient Occlusion Culling in Urban Scenes
Authors: Germs, Rick
Jansen, Frederik W.
Citation: WSCG '2001: Conference proceedings: The 9-th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision 2001: University of West Bohemia, Plzen, Czech Republic, February 5.-9., 2001, p. 291-298.
Issue Date: 2001
Publisher: University of West Bohemia
Document type: konferenční příspěvek
URI: http://wscg.zcu.cz/wscg2001/Papers_2001/R201.pdf
ISBN: 80-7082-713-0
ISSN: 1213-6972
Keywords: vizualizace průchodu;redukce okluze;geometrická simplifikace
Keywords in different language: walkthrough visualization;occlusion culling;geometric simplification
Abstract: Most occlusion culling algorithms select a subset of suitable occluder planes or geometries to exclude invisible objects from further visualization processing. Preferably these occluders are large and simple. For complex scenes it is worthwhile to generate virtual occluders to replace complex occluder geometries by simple polygonal structures. In urban scenes, the facade of buildings comprises most of the occlusion potential. In this paper we present an algorithm to extract simplified facades from complex building models, exploiting the fact that, in most cases, buildings have a 2.5D structure.
Rights: © University of West Bohemia
Appears in Collections:WSCG '2001: Conference proceedings

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