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CAGD
2005
111views more  CAGD 2005»
14 years 9 months ago
On geometric interpolation of parametric surfaces
By exploiting the freedom in the choice of parametrization of a parametric surface, we show that there exist quadratic parametric surfaces that approximate a given parametric surf...
Knut Mørken
ICPR
2006
IEEE
15 years 11 months ago
Bottom-Up Hierarchical Image Segmentation Using Region Competition and the Mumford-Shah Functional
This paper generalizes the methods in a previous paper [10] in two ways. First, a more comprehensive analysis of the initialization problem of the Chan-Vese models is given. Secon...
J. Douglas Birdwell, Seddik M. Djouadi, Yongsheng ...
SCALESPACE
2007
Springer
15 years 3 months ago
A Geometric-Functional-Based Image Segmentation and Inpainting
Abstract. The Mumford-Shah functional minimization, and related algorithms for image segmentation, involve a tradeoff between a twodimensional image structure and one-dimensional ...
Vladimir Kluzner, Gershon Wolansky, Yehoshua Y. Ze...
EUROCRYPT
1999
Springer
15 years 2 months ago
S-boxes with Controllable Nonlinearity
Abstract. In this paper, we give some relationship between the nonlinearity of rational functions over F2n and the number of points of associated hyperelliptic curve. Using this, w...
Jung Hee Cheon, Seongtaek Chee, Choonsik Park
ADBIS
1998
Springer
100views Database» more  ADBIS 1998»
15 years 2 months ago
Multiple Range Query Optimization in Spatial Databases
In order to answer efficiently range queries in 2-d R-trees, first we sort queries by means of a space filling curve, then we group them together, and finally pass them for process...
Apostolos Papadopoulos, Yannis Manolopoulos