Non-negativity and iterative methods for ill-posed problems D Calvetti, G Landi, L Reichel, F Sgallari Inverse Problems 20 (6), 1747, 2004 | 64 | 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 | 48 | 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 | 35 | 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 | 31 | 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 | 25 | 2016 |

NPTool: a Matlab software for nonnegative image restoration with Newton projection methods G Landi, EL Piccolomini Numerical Algorithms 62 (3), 487-504, 2013 | 18 | 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 | 18 | 2012 |

The Lagrange method for the regularization of discrete ill-posed problems G Landi Computational Optimization and Applications 39 (3), 347-368, 2008 | 16 | 2008 |

A projected Newton-CG method for nonnegative astronomical image deblurring G Landi, EL Piccolomini Numerical Algorithms 48 (4), 279-300, 2008 | 15 | 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 | 13 | 2016 |

A stopping criterion for iterative regularization methods G Landi, EL Piccolomini, I Tomba Applied Numerical Mathematics 106, 53-68, 2016 | 12 | 2016 |

A fast truncated Lagrange method for large-scale image restoration problems G Landi Applied mathematics and computation 186 (2), 1075-1082, 2007 | 12 | 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 | 10 | 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 | 10 | 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 | 8 | 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 | 7 | 2018 |

A discrete l-curve for the regularization of ill-posed inverse problems G Landi Optimization-Online, 1-25, 2012 | 7 | 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 | 7 | 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 | 6 | 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 | 5 | 2017 |