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DAGM
2004
Springer
15 years 7 months ago
Accurate and Efficient Approximation of the Continuous Gaussian Scale-Space
Abstract. The Gaussian scale-space is a standard tool in image analysis. While continuous in theory, it is generally realized with fixed regular grids in practice. This prevents th...
Ullrich Köthe
SIAMSC
2008
90views more  SIAMSC 2008»
15 years 4 months ago
Norm Preconditioners for Discontinuous Galerkin hp-Finite Element Methods
We consider a norm-preconditioning approach for the solution of discontinuous Galerkin finite element discretizations of second order PDE with non-negative characteristic form. In ...
Emmanuil H. Georgoulis, Daniel Loghin
JACM
2000
119views more  JACM 2000»
15 years 3 months ago
A minimum spanning tree algorithm with Inverse-Ackermann type complexity
A deterministic algorithm for computing a minimum spanning tree of a connected graph is presented. Its running time is O(m (m, n)), where is the classical functional inverse of Ack...
Bernard Chazelle
SYMMETRY
2010
90views more  SYMMETRY 2010»
14 years 10 months ago
Orientational Sampling Schemes Based on Four Dimensional Polytopes
Abstract: The vertices of regular four-dimensional polytopes are used to generate sets of uniformly distributed three-dimensional rotations, which are provided as tables of Euler a...
Salvatore Mamone, Giuseppe Pileio, Malcolm H. Levi...
FSS
2008
88views more  FSS 2008»
15 years 4 months ago
Solution of a system of linear equations with fuzzy numbers
The paper deals with a solution of a fuzzy interval system of linear equations, i.e. a system in which fuzzy intervals (numbers) appear instead of crisp numbers. We obtain general...
Rostislav Horcík