3595 search results - page 381 / 719 » Image Recognition CAPTCHAs |
203
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SCIA
2009
Springer
16 years 1 months ago
2009
Springer
In this paper, we propose Local Binary Pattern Histogram Fourier features (LBP-HF), a novel rotation invariant image descriptor computed from discrete Fourier transforms of local b...
178
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IAT
2008
IEEE
16 years 1 months ago
2008
IEEE
A growing number of users in Web 2.0 based social network sites and photo sharing portals upload millions of images per day. In many cases, this leads to serious privacy threats. ...
187
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GBRPR
2007
Springer
16 years 29 days ago
2007
Springer
We introduce a method for computing homology groups and their generators of a 2D image, using a hierarchical structure i.e. irregular graph pyramid. Starting from an image, a hiera...
176
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IBPRIA
2007
Springer
16 years 29 days ago
2007
Springer
Abstract. The extraction of reliable features is a key issue for autonomous underwater vehicle navigation. Imaging sonars can produce acoustic images of the surroundings of the veh...
190
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IBPRIA
2007
Springer
16 years 29 days ago
2007
Springer
Abstract. This paper describes an approach to estimate the parameters of a motion blur (direction and length) directly form the observed image. The motion blur estimate can then be...