7 search results - page 1 / 2 » Fast Nonconvex Nonsmooth Minimization Methods for Image Rest... |
TIP
2010
12 years 11 months ago
2010
Nonconvex nonsmooth regularization has advantages over convex regularization for restoring images with neat edges. However, its practical interest used to be limited by the difficu...
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...
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 10 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...
TIP
2010
12 years 11 months ago
2010
We propose a new fast algorithm for solving one of the standard formulations of image restoration and reconstruction which consists of an unconstrained optimization problem where t...