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JCAM
2010
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13 years 2 months ago
Cascadic multilevel methods for ill-posed problems
Multilevel methods are popular for the solution of well-posed problems, such as certain boundary value problems for partial differential equations and Fredholm integral equations ...
Lothar Reichel, Andriy Shyshkov
NA
2010
62views more  NA 2010»
13 years 5 months ago
Noise-reducing cascadic multilevel methods for linear discrete ill-posed problems
Cascadic multilevel methods for the solution of linear discrete ill-posed problems with noise-reducing restriction and prolongation operators recently have been developed for the r...
Serena Morigi, Lothar Reichel, Fiorella Sgallari
ACCV
2009
Springer
13 years 11 months ago
Refined Exponential Filter with Applications to Image Restoration and Interpolation
Ill-posed linear equations are pervasive in computer vision. A popular way to solve an ill-posed problem is regularization. In this paper, we propose a new criterion for designing ...
Yanlin Geng, Tong Lin, Zhouchen Lin, Pengwei Hao
ICIP
2008
IEEE
14 years 9 months ago
Consistent and regularized magnification of images
Because more output data must be created than is available from the input, magnification is an ill-posed problem. Traditional magnification relies on resampling an interpolation mo...
Aurélien Bourquard, Katarina Balac, Michael...
CVPR
2005
IEEE
14 years 9 months ago
Shape from Shading: A Well-Posed Problem?
Shape From Shading is known to be an ill-posed problem. We show in this paper that if we model the problem in a different way than it is usually done, more precisely by taking int...
Emmanuel Prados, Olivier D. Faugeras