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» Conditional colorings of graphs
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EJC
2010
15 years 6 months ago
The edge-flipping group of a graph
Let X = (V, E) be a finite simple connected graph with n vertices and m edges. A configuration is an assignment of one of two colors, black or white, to each edge of X. A move app...
Hau-wen Huang, Chih-wen Weng
MICCAI
2008
Springer
16 years 7 months ago
Weights and Topology: A Study of the Effects of Graph Construction on 3D Image Segmentation
Abstract. Graph-based algorithms have become increasingly popular for medical image segmentation. The fundamental process for each of these algorithms is to use the image content t...
Leo Grady, Marie-Pierre Jolly
CVPR
2007
IEEE
16 years 8 months ago
The Hyperbolic Geometry of Illumination-Induced Chromaticity Changes
The non-negativity of color signals implies that they span a conical space with a hyperbolic geometry. We use perspective projections to separate intensity from chromaticity, and ...
Reiner Lenz, Pedro Latorre Carmona, Peter Meer
ICPR
2008
IEEE
16 years 1 months ago
Illumination invariant spatio-colorimetric normalization
In the context of object recognition, it is useful to extract, from the images, efficient indexes that are insensitive to the illumination conditions, to the camera scale factor ...
Damien Muselet, Alain Trémeau
ICIP
2005
IEEE
16 years 5 days ago
Chromatic adaptation and white-balance problem
The problem of adjusting the color such that the output image from a digital camera, viewed under a standard condition, matches the scene observed by the photographer’s eye is c...
Keigo Hirakawa, Thomas W. Parks