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Conference Papers Year : 2003

Erosion Based Visibility Preprocessing

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Abstract

This paper presents a novel method for computing visibility in 2.5D environments. It is based on a novel theoretical result: the visibility from a region can be conservatively estimated by computing the visibility from a point using appropriately "shrunk" occluders and occludees. We show how approximated but yet conservative shrunk objects can efficiently be computed in a urban environment. The application of this theorem provides a tighter potentially visible set (PVS) than the original method it is built on. Finally, theoretical implications of the theorem are discussed, and we believe it can open new research directions.
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Dates and versions

inria-00510177 , version 1 (13-10-2010)

Identifiers

  • HAL Id : inria-00510177 , version 1

Cite

Xavier Décoret, Gilles Debunne, François X. Sillion. Erosion Based Visibility Preprocessing. Proceedings of the Eurographics Symposium on Rendering, Eurographics, 2003, Louvain, Belgium. ⟨inria-00510177⟩
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