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» On Indexing Line Segments
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123
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CCCG
1997
15 years 5 months ago
On the number of internal and external visibility edges of polygons
In this paper we prove that for any simple polygon P with n vertices, the sum of the number of strictly internal edges and the number of strictly external visibility edges of P is...
Jorge Urrutia
125
Voted
CCCG
1993
15 years 5 months ago
Folding Rulers inside Triangles
An l-ruler is a chain of n links, each of length l. The links, which are allowed to cross, are modeled by line segments whose endpoints act as joints. A given configuration of an ...
Marc J. van Kreveld, Jack Snoeyink, Sue Whitesides
GD
2008
Springer
15 years 5 months ago
Visibility Representations of Four-Connected Plane Graphs with Near Optimal Heights
A visibility representation of a graph G is to represent the nodes of G with non-overlapping horizontal line segments such that the line segments representing any two distinct adja...
Chieh-Yu Chen, Ya-Fei Hung, Hsueh-I Lu
166
Voted
PAMI
2008
185views more  PAMI 2008»
15 years 3 months ago
Three-View Multibody Structure from Motion
We propose a geometric approach to 3D motion segmentation from point correspondences in three perspective views. We demonstrate that after applying a polynomial embedding to the po...
René Vidal, Richard Hartley
IJCGA
2007
55views more  IJCGA 2007»
15 years 3 months ago
Parabola Separation Queries and their Application to Stone Throwing
Given two sets A and B of m non-intersecting line segments in the plane, we show how to compute in O(m log m) time a data structure that uses O(m) space and allows to answer the fo...
Otfried Cheong, Hazel Everett, Hyo-Sil Kim, Sylvai...