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Title: A faster algorithm to compute the visibility map of a 1.5D terrain
Author: Loffler, Maarten
Saumell, M.
Silveira, Rodrigo
Issue Date: 2014
Abstract: Given a 1.5D terrain, i.e., an x-monotone polygonal line in R 2 with n vertices, and 1 ≤ m ≤ n viewpoints placed on some of the terrain vertices, we study the problem of computing the parts of the terrain that are visible from at least one of the viewpoints. We present an algorithm that runs in O(n + m log m) time. This improves over a previous algorithm recently proposed.
Peer review: yes
Appears in Collections:CIDMA - Comunicações
OGTCG - Comunicações

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