327 search results - page 56 / 66 » On the structure of the Medvedev lattice |
IJAC
2002
13 years 7 months ago
2002
Abstract. We discuss the computational complexity of several problems concerning subsets of an algebraic structure that generate the structure. We show that the problem of determin...
CVPR
2008
IEEE
14 years 9 months ago
2008
IEEE
We introduce a novel image segmentation algorithm that uses translational symmetry as the primary foreground/background separation cue. We investigate the process of identifying a...
ICCV
1999
IEEE
14 years 9 months ago
1999
IEEE
A nonparametric estimator of density gradient, the mean shift, is employed in the joint, spatial-range (value) domain of gray level and color images for discontinuity preserving l...
ECCV
2000
Springer
14 years 9 months ago
2000
Springer
The medial surface of a volumetric object is of significant interest for shape analysis. However, its numerical computation can be subtle. Methods based on Voronoi techniques prese...
ICIP
2005
IEEE
14 years 9 months ago
2005
IEEE
Joint source-channel coding of scalable video using motion-compensated temporal filtering is considered. The proposed coding scheme consists of a structured vector quantizer based ...