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ENTCS
2002
105views more  ENTCS 2002»
13 years 7 months ago
Fixed points in digital topology (via Helly posets)
Abstract. We extend some of our previous results on fixed points of graph multifunctions to posets. The posets of most interest here are the (finite) Khalimsky spaces, in their spe...
Rueiher Tsaur, Michael B. Smyth
SIGGRAPH
1997
ACM
13 years 12 months ago
Interactive Boolean operations for conceptual design of 3-D solids
Interactive modeling of 3-D solids is an important and difficult problem in computer graphics. The Constructive Solid Geometry (CSG) modeling scheme is highly attractive for inte...
Ari Rappoport, Steven N. Spitz
SIGGRAPH
1998
ACM
13 years 12 months ago
Visibility Sorting and Compositing Without Splitting for Image Layer Decompositions
We present an efficient algorithm for visibility sorting a set of moving geometric objects into a sequence of image layers which are composited to produce the final image. Inste...
John M. Snyder, Jed Lengyel
ICPR
2008
IEEE
14 years 2 months ago
Fingerprint orientation analysis with topological modeling
This paper proposes to characterize the fingerprint orientation using a novel topological representation, which transforms the orientation field into a map composed of a set of ...
Zujun Hou, Jun Li, Hwee Keong Lam, Tai Pang Chen, ...
ISIPTA
2003
IEEE
14 years 1 months ago
Geometry of Upper Probabilities
In this paper we adopt the geometric approach to the theory of evidence to study the geometric counterparts of the plausibility functions, or upper probabilities. The computation ...
Fabio Cuzzolin