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ISVD
2007
IEEE
14 years 4 months ago
Voronoi Tessellations and the Cosmic Web: Spatial Patterns and Clustering across the Universe
The spatial cosmic matter distribution on scales of a few up to more than a hundred Megaparsec1 displays a salient and pervasive foamlike pattern. Voronoi tessellations are a vers...
Rien van de Weygaert
ISVD
2007
IEEE
14 years 4 months ago
Voronoi Diagram with Respect to Criteria on Vision Information
Voronoi diagram for a set of geometric objects is a partition of the plane (or space in higher dimensions) into disjoint regions each dominated by some given object under a predet...
Tetsuo Asano, Naoki Katoh, Hisao Tamaki, Takeshi T...
FOCS
2002
IEEE
14 years 2 months ago
The Partition Technique for Overlays of Envelopes
We obtain a near-tight bound of O(n3+ε ), for any ε > 0, on the complexity of the overlay of the minimization diagrams of two collections of surfaces in four dimensions. This...
Vladlen Koltun, Micha Sharir
STACS
1992
Springer
14 years 2 months ago
A Simplified Technique for Hidden-Line Elimination in Terrains
In this paper we give a practical and e cient output-sensitive algorithm for constructing the display of a polyhedral terrain. It runs in Od + nlog2 n time and uses On n space, wh...
Franco P. Preparata, Jeffrey Scott Vitter
ENC
2004
IEEE
14 years 1 months ago
Graph-Based Point Relaxation for 3D Stippling
Point hierarchies are suitable for creating framecoherent animations of 3D models in non-photorealistic styles such as stippling, painterly and other artistic rendering. In this p...
Oscar Meruvia Pastor, Thomas Strotthote