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SIGGRAPH
1987
ACM
13 years 10 months ago
Direct least-squares fitting of algebraic surfaces
In the course of developing a system for fitting smooth curves to camera input we have developed several direct (i.e. noniterative) methods for fitting a shape (line, circle, conic...
Vaughan R. Pratt
SODA
1993
ACM
119views Algorithms» more  SODA 1993»
13 years 8 months ago
Iterated Nearest Neighbors and Finding Minimal Polytopes
We introduce a new method for nding several types of optimal k-point sets, minimizing perimeter, diameter, circumradius, and related measures, by testing sets of the O(k) nearest ...
David Eppstein, Jeff Erickson
PCM
2010
Springer
156views Multimedia» more  PCM 2010»
13 years 5 months ago
A New Text Detection Algorithm for Content-Oriented Line Drawing Image Retrieval
Abstract. Content retrieval of scanned line drawing images is a difficult problem, especially from real-life large scale databases. Existing algorithms don’t work well due to th...
Zhenyu Zhang, Tong Lu, Feng Su, Ruoyu Yang
ISAAC
2009
Springer
116views Algorithms» more  ISAAC 2009»
14 years 1 months ago
Practical Discrete Unit Disk Cover Using an Exact Line-Separable Algorithm
Given m unit disks and n points in the plane, the discrete unit disk cover problem is to select a minimum subset of the disks to cover the points. This problem is NP-hard [11] and ...
Francisco Claude, Reza Dorrigiv, Stephane Durocher...
COMGEO
2010
ACM
13 years 7 months ago
Highway hull revisited
A highway H is a line in the plane on which one can travel at a greater speed than in the remaining plane. One can choose to enter and exit H at any point. The highway time distanc...
Greg Aloupis, Jean Cardinal, Sébastien Coll...