1987 search results - page 168 / 398 » Directional filtering transform |
159
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SMI
2010
IEEE
15 years 2 months ago
2010
IEEE
In this article, we present a rule-based language dedicated to topological operations, based on graph transformations. Generalized maps are described as a particular class of graph...
137
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TVCG
2008
15 years 4 months ago
2008
Abstract-- This paper introduces orthogonal vector field visualization on 2D manifolds: a representation by lines that are perpendicular to the input vector field. Line patterns ar...
151
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ICCV
2001
IEEE
16 years 6 months ago
2001
IEEE
Video telephony could be considerably enhanced by provision of a tracking system that allows freedom of movement to the speaker, while maintaining a well-framed image, for transmi...
123
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ICIP
2005
IEEE
16 years 5 months ago
2005
IEEE
In this paper, we propose new sampling schemes for classes of 2-D signals with finite rate of innovation (FRI). In particular, we consider sets of 2-D Diracs and bilevel polygons....
122
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ICPR
2006
IEEE
16 years 5 months ago
2006
IEEE
This paper presents Markov random fields (MRFs) to segment strokes of Chinese characters. The distortions caused by the thinning process make the thinning-based stroke segmentatio...