5 search results - page 1 / 1 » Smoothing Nonlinear Conjugate Gradient Method for Image Rest... |
SIAMIS
2010
12 years 11 months ago
2010
Image restoration problems are often converted into large-scale, nonsmooth and nonconvex optimization problems. Most existing minimization methods are not efficient for solving su...
SCALESPACE
2007
Springer
13 years 11 months ago
2007
Springer
This is a theoretical study on the minimizers of cost-functions composed of an ℓ2 data-fidelity term and a possibly nonsmooth or nonconvex regularization term acting on the di...
SIAMIS
2008
13 years 4 months ago
2008
We consider the restoration of piecewise constant images where the number of the regions and their values are not fixed in advance, with a good difference of piecewise constant val...
ICIP
1994
IEEE
13 years 9 months ago
1994
IEEE
The two main plagues of image restoration are oscillations and smoothing. Traditional image restoration techniques prevent parasitic oscillations by resorting to smooth regulariza...
SIAMSC
2008
13 years 4 months ago
2008
An effective 2-phase method for removing impulse noise was recently proposed. Its phase 1 identifies noisy pixel candidates by using median-type filters. Then in phase 2, it resto...