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» Query point visibility computation in polygons with holes
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103
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CCCG
2009
15 years 1 months ago
Approximating Maximum Flow in Polygonal Domains using Spanners
We study a maximum flow problem in a polygonal domain P: Determine the maximum number of disjoint "thick" paths (of specified width w) through P from a source edge to a ...
Joondong Kim, Joseph S. B. Mitchell, Jingyu Zou
112
Voted
SSD
2001
Springer
128views Database» more  SSD 2001»
15 years 4 months ago
Creating Representations for Continuously Moving Regions from Observations
Recently there is much interest in moving objects databases, and data models and query languages have been proposed offering data types such as moving point and moving region toge...
Erlend Tøssebro, Ralf Hartmut Güting
87
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ALENEX
2004
107views Algorithms» more  ALENEX 2004»
15 years 1 months ago
Approximating the Visible Region of a Point on a Terrain
Given a terrain T and a point p on or above it, we wish to compute the region Rp that is visible from p. We present a generic radar-like algorithm for computing an approximation o...
Boaz Ben-Moshe, Paz Carmi, Matthew J. Katz
119
Voted
SIGGRAPH
1993
ACM
15 years 4 months ago
Global visibility algorithms for illumination computations
The most expensive geometric operation in image synthesis is visibility determination. Classically this is solved with hidden surface removal algorithms that render only the parts...
Seth J. Teller, Pat Hanrahan
FOCS
2000
IEEE
15 years 4 months ago
Nearly Optimal Expected-Case Planar Point Location
We consider the planar point location problem from the perspective of expected search time. We are given a planar polygonal subdivision S and for each polygon of the subdivision t...
Sunil Arya, Theocharis Malamatos, David M. Mount