Software by Per Christian Hansen Click the logos for information

Matlab Software for Regularization of Discrete Ill-Posed Problems

AIR Tools II is a Matlab package of Algebraic Iterative Reconstruction methods for inverse problems.
IR Tools is a Matlab package of Iterative Regularization methods and test problems for linear inverse problems. The package is a collaborative effort with Silvia Gazzola, University of Bath, and James G. Nagy, Emory University.
Regularization Tools (Version 4.0 for Matlab 7.3) is a Matlab package for analysis and solution of discrete ill-posed problems. The software and the manual are available, as well as some additional functions that provide new functionality.
mxTV is a software package for Total Variation image reconstruction. The core software is written in C, and with mex interfact to Matlab.
TVReg is a software package for 3D tomography using Total Variation regularization. The core software is written in C, and with mex interfact to Matlab.
ABBA contains a few Matlab files related to the use of AB-GMRES and BA-GMRES as regularizing iterations for CT problems.
FA18 contains a few Matlab files for the book Computed Tomography: Algorithms, Insight, and Just Enough Theory.

UTV Tools is a package of 46 Matlab functions for computing and modifying rank-revealing decompositions, with focus on URV and ULV decompositions.
UTV Expansion Pack, with extensions and new methods, is also available.