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BILDMED
2006
169views Algorithms» more  BILDMED 2006»
15 years 8 months ago
Segmentation of the Vascular Tree in CT Data Using Implicit Active Contours
Abstract. We propose an algorithm for the segmentation of blood vessels in the kind of CT-data typical for diagnostics in a clinical environment. Due to poor quality and variance i...
Karsten Rink, Arne-Michael Törsel, Klaus D. T...
COMGEO
2011
ACM
15 years 1 months ago
Stabbers of line segments in the plane
The problem of computing a representation of the stabbing lines of a set S of segments in the plane was solved by Edelsbrunner et al. We provide efficient algorithms for the follo...
Mercè Claverol, Delia Garijo, Clara I. Grim...
SODA
2001
ACM
87views Algorithms» more  SODA 2001»
15 years 8 months ago
Steiner points in tree metrics don't (really) help
Consider an edge-weighted tree T = (V, E, w : E R+ ), in which a subset R of the nodes (called the required nodes) are colored red and the remaining nodes in S = V \R are colored ...
Anupam Gupta
JAIR
2008
102views more  JAIR 2008»
15 years 6 months ago
An Ordinal Bargaining Solution with Fixed-Point Property
Shapley's impossibility result indicates that the two-person bargaining problem has no non-trivial ordinal solution with the traditional game-theoretic bargaining model. Alth...
Dongmo Zhang, Yan Zhang
ASUNAM
2009
IEEE
15 years 4 months ago
Automatically Detecting Points of Interest and Social Networks from Tracking Positions of Avatars in a Virtual World
With hundreds of millions of users already today, virtual worlds will become an important factor in tomorrow's media landscape. In a virtual world, users are represented by s...
Frank Kappe, Bilal Zaka, Michael Steurer