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PAAPP
1998
149views more  PAAPP 1998»
13 years 4 months ago
Optimal Mesh Algorithms for Proximity and Visibility Problems in Simple Polygons*
We present optimal parallel algorithms that run in O( pn) time on a pn pn meshconnected computer for a number of fundamental problems concerning proximity and visibility in a simp...
Sumanta Guha
CGI
2004
IEEE
13 years 8 months ago
Consistent Normal Orientation for Polygonal Meshes
In this paper, we propose a new method that can consistently orient all normals of any mesh (if at all possible), while ensuring that most polygons are seen with their front-faces...
Pavel Borodin, Gabriel Zachmann, Reinhard Klein
SIGGRAPH
1997
ACM
13 years 8 months ago
The visibility skeleton: a powerful and efficient multi-purpose global visibility tool
Many problems in computer graphics and computer vision require accurate global visibility information. Previous approaches have typically been complicated to implement and numeric...
Frédo Durand, George Drettakis, Claude Puec...
COMPGEOM
2004
ACM
13 years 10 months ago
Computing the visibility graph of points within a polygon
We study the problem of computing the visibility graph defined by a set P of n points inside a polygon Q: two points p, q ∈ P are joined by an edge if the segment pq ⊂ Q. Ef...
Boaz Ben-Moshe, Olaf Hall-Holt, Matthew J. Katz, J...
CCCG
2006
13 years 6 months ago
An Optimal Solution to Room Search Problem
A room is a simple polygon with a prespecified point, called the door, on its boundary. A search starts at the door and must detect any intruder that may be in the room, while maki...
Binay K. Bhattacharya, John Z. Zhang, Qiaosheng Sh...