Germana Landi
Germana Landi
Ricercatore di Analisi Numerica, UniversitÓ di Bologna
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Non-negativity and iterative methods for ill-posed problems
D Calvetti, G Landi, L Reichel, F Sgallari
Inverse Problems 20 (6), 1747, 2004
An efficient method for nonnegatively constrained Total Variation-based denoising of medical images corrupted by Poisson noise
G Landi, EL Piccolomini
Computerized Medical Imaging and Graphics 36 (1), 38-46, 2012
Scaling techniques for gradient projection-type methods in astronomical image deblurring
S Bonettini, G Landi, EL Piccolomini, L Zanni
International Journal of Computer Mathematics 90 (1), 9-29, 2013
The active-set method for nonnegative regularization of linear ill-posed problems
G Landi, F Zama
Applied mathematics and computation 175 (1), 715-729, 2006
Uniform Penalty inversion of two-dimensional NMR relaxation data
V Bortolotti, RJS Brown, P Fantazzini, G Landi, F Zama
Inverse Problems 33 (1), 015003, 2016
NPTool: a Matlab software for nonnegative image restoration with Newton projection methods
G Landi, EL Piccolomini
Numerical Algorithms 62 (3), 487-504, 2013
An improved Newton projection method for nonnegative deblurring of Poisson-corrupted images with Tikhonov regularization
G Landi, EL Piccolomini
Numerical Algorithms 60 (1), 169-188, 2012
The Lagrange method for the regularization of discrete ill-posed problems
G Landi
Computational Optimization and Applications 39 (3), 347-368, 2008
A projected Newton-CG method for nonnegative astronomical image deblurring
G Landi, EL Piccolomini
Numerical Algorithms 48 (4), 279-300, 2008
On the regularizing behavior of the SDA and SDC gradient methods in the solution of linear ill-posed problems
R De Asmundis, D Di Serafino, G Landi
Journal of Computational and Applied Mathematics 302, 81-93, 2016
A stopping criterion for iterative regularization methods
G Landi, EL Piccolomini, I Tomba
Applied Numerical Mathematics 106, 53-68, 2016
A fast truncated Lagrange method for large-scale image restoration problems
G Landi
Applied mathematics and computation 186 (2), 1075-1082, 2007
ACQUIRE: An inexact iteratively reweighted norm approach for TV-based Poisson image restoration
D di Serafino, G Landi, M Viola
Applied Mathematics and Computation 364, 124678, 2020
A total variation-based reconstruction method for dynamic MRI
G Landi, EL Piccolomini, F Zama
Computational and Mathematical Methods in Medicine 9 (1), 69-80, 2008
Filtering techniques for efficient inversion of two-dimensional Nuclear Magnetic Resonance data
V Bortolotti, L Brizi, P Fantazzini, G Landi, F Zama
Journal of Physics: Conference Series 904 (1), 012005, 2017
I2DUPEN: Improved 2DUPEN algorithm for inversion of two-dimensional NMR data
V Bortolotti, RJS Brown, P Fantazzini, G Landi, F Zama
Microporous and Mesoporous Materials 269, 195-198, 2018
A discrete l-curve for the regularization of ill-posed inverse problems
G Landi
Optimization-Online, 1-25, 2012
An algorithm for image denoising with automatic noise estimate
G Landi, EL Piccolomini
Journal of Mathematical Imaging and Vision 34 (1), 98-106, 2009
A B-spline parametric model for high resolution dynamic magnetic resonance imaging
EL Piccolomini, G Landi, F Zama
Applied mathematics and computation 164 (1), 133-148, 2005
A limited memory BFGS method for a nonlinear inverse problem in digital breast tomosynthesis
G Landi, EL Piccolomini, JG Nagy
Inverse Problems 33 (9), 095005, 2017
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