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ALENEX
2007

Locating Guards for Visibility Coverage of Polygons

13 years 5 months ago
Locating Guards for Visibility Coverage of Polygons
We propose heuristics for visibility coverage of a polygon with the fewest point guards. This optimal coverage problem, often called the “art gallery problem”, is known to be NP-hard, so most recent research has focused on heuristics and approximation methods. We evaluate our heuristics through experimentation, comparing the upper bounds on the optimal guard number given by our methods with computed lower bounds based on heuristics for placing a large number of visibility-independent “witness points”. We give experimental evidence that our heuristics perform well in practice, on a large suite of input data; often the heuristics give a provably optimal result, while in other cases there is only a small gap between the computed upper and lower bounds on the optimal guard number.
Yoav Amit, Joseph S. B. Mitchell, Eli Packer
Added 29 Oct 2010
Updated 29 Oct 2010
Type Conference
Year 2007
Where ALENEX
Authors Yoav Amit, Joseph S. B. Mitchell, Eli Packer
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