187 search results - page 19 / 38 » Directional wavelet transforms and frames |
AVBPA
2003
Springer
14 years 29 days ago
2003
Springer
In general, the iris recognition systems have used the wavelet transform as feature extraction techniques. Since the wavelet transform does not have the shift-invariant property, t...
ICIP
2001
IEEE
14 years 9 months ago
2001
IEEE
A flexible multiscale and directional representation for images is proposed. The scheme combines directional filter banks with the Laplacian pyramid to provides a sparse represent...
APCCAS
2006
IEEE
14 years 1 months ago
2006
IEEE
—This report discusses how to generate a panoramic image from video data for environmental surveillance of a river. Video signal is assumed to be taken in a sunny day from an air...
TIP
2008
13 years 7 months ago
2008
Denoising is always a challenging problem in natural imaging and geophysical data processing. In this paper we consider the denoising of texture images using a nonlinear reaction-...
ICIP
2009
IEEE
13 years 5 months ago
2009
IEEE
Super-resolution image zooming is possible when the image has some geometric regularity. We introduce a general class of non-linear inverse estimators, which combines linear estima...