Sciweavers

947 search results - page 124 / 190
» Discrete Geometry
Sort
View
COMPGEOM
2004
ACM
15 years 3 months ago
Time-varying reeb graphs for continuous space-time data
The Reeb graph is a useful tool in visualizing real-valued data obtained from computational simulations of physical processes. We characterize the evolution of the Reeb graph of a...
Herbert Edelsbrunner, John Harer, Ajith Mascarenha...
COMPGEOM
2003
ACM
15 years 3 months ago
Curve reconstruction from noisy samples
We present an algorithm to reconstruct a collection of disjoint smooth closed curves from noisy samples. Our noise model assumes that the samples are obtained by first drawing po...
Siu-Wing Cheng, Stefan Funke, Mordecai J. Golin, P...
COMPGEOM
2003
ACM
15 years 3 months ago
Shape fitting with outliers
Given a set H of n hyperplanes in IRd , we present an algorithm that ε-approximates the extent between the top and bottom k levels of the arrangement of H in time O(n+(k/ε)c), w...
Sariel Har-Peled, Yusu Wang
COMPGEOM
2003
ACM
15 years 3 months ago
Finding a curve in a map
Given a polygonal curve and a geometric graph, we describe an efficient algorithm to find a path in the graph which is most similar to the curve, using the well-known Fr´echet d...
Carola Wenk, Helmut Alt, Alon Efrat, Lingeshwaran ...
DGCI
2003
Springer
15 years 3 months ago
The Generation of N Dimensional Shape Primitives
This paper describes a method to accelerate the generation of shape primitives for N-dimensional images N X . These shape primitives can be used in conditions for topology preservi...
Pieter P. Jonker, Stina Svensson