Sciweavers

34 search results - page 1 / 7
» A new approximation algorithm for labeling points with circl...
Sort
View
IPL
2006
105views more  IPL 2006»
13 years 4 months ago
A new approximation algorithm for labeling points with circle pairs
We study the NP-hard problem of labeling points with maximum-radius circle pairs: given n point sites in the plane, find a placement for 2n interior-disjoint uniform circles, such...
Minghui Jiang
IPL
2002
65views more  IPL 2002»
13 years 4 months ago
A new bound for map labeling with uniform circle pairs
Given a planar point set, we wish to label the points with uniform circular labels such that each input point lies on the boundary of two labels, none of the interiors of the labe...
Michael J. Spriggs, J. Mark Keil
IJCGA
2002
73views more  IJCGA 2002»
13 years 4 months ago
A Simple Factor-2/3 Approximation Algorithm for Two-Circle Point Labeling
Given a set P of n points in the plane, the two-circle point-labeling problem consists of placing 2n uniform, non-intersecting, maximum-size open circles such that each point touc...
Alexander Wolff, Michael Thon, Yin-Feng Xu
COMGEO
1999
ACM
13 years 4 months ago
Point labeling with sliding labels
This paper discusses algorithms for labeling sets of points in the plane, where labels are not restricted to some finite number of positions. We show that continuously sliding lab...
Marc J. van Kreveld, Tycho Strijk, Alexander Wolff
WSCG
2004
106views more  WSCG 2004»
13 years 6 months ago
Recognition of Occluded Objects Using Curvature
New approaches of object representation reliable for partially occluded objects recognition are introduced in this article. Objects are represented by their boundaries, which are ...
Filip Krolupper