403 search results - page 20 / 81 » A new direction adaptive scheme for image interpolation |
ICASSP
2011
IEEE
13 years 5 days ago
2011
IEEE
A robust data hiding scheme that embeds the watermark bits by quantizing the gradient directions of an image is proposed. By embedding the watermark in the angle, the watermark be...
ICIP
2002
IEEE
14 years 10 months ago
2002
IEEE
We propose a new scheme, named contourlet, that provides a flexible multiresolution, local and directional image expansion. The contourlet transform is realized efficiently via a ...
ICIP
2002
IEEE
14 years 10 months ago
2002
IEEE
Using a far-field model, bistatic synthetic aperture radar (SAR) acquires Fourier data on a rather unusual, non-Cartesian grid in the Fourier domain. Previous image formation algo...
ICIP
1999
IEEE
14 years 10 months ago
1999
IEEE
A neural network scheme is presented in this paper for adaptive video indexing and retrieval. First, a limited but characteristic amount of frames are extracted from each video sc...
ICIP
2009
IEEE
14 years 9 months ago
2009
IEEE
This paper addresses the problem of mapping images between different vision sensors. Such a mapping could be modeled as a sampling problem that has to encompass the change of geom...