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Ninth Pacific Conference on Computer Graphics and Applications (PG'01)   p. 0276
Visibility Preprocessing for Urban Scenes using Line Space Subdivision
Jiri Bittner, Czech Technical University in Prague
Peter Wonka, Vienna University of Technology
Michael Wimmer, Vienna University of Technology

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DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/PCCGA.2001.962883
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Abstract
We present an algorithm for visibility preprocessing of urban environments. The algorithm uses a subdivision of line space to analytically calculate a conservative potentially visible set for a given region in the scene. We present a detailed evaluation of our method including a comparison to another recently published visibility preprocessing algorithm. To the best of our knowledge the proposed method is the first algorithm that scales to large scenes and efficiently handles large view cells.
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Index Terms- visibility preprocessing, potentially visible sets Citation:  Jiri Bittner, Peter Wonka, Michael Wimmer, "Visibility Preprocessing for Urban Scenes using Line Space Subdivision," pg, p. 0276,  Ninth Pacific Conference on Computer Graphics and Applications (PG'01),  2001