Organized by Chair Materials Science for Sustainable Construction supported by LafargeHolcim
7-8 Jul 2016 Champs sur Marne (France)
Optimisation methods for tomography
Hugues Talbot  1@  
1 : Université Paris-Est ESIEE / LIGM  (LIGM)  -  Website
Fédération de Recherche Bézout, École des Ponts ParisTech (ENPC), ESIEE, Université Paris-Est Marne-la-Vallée (UPEMLV), CNRS : UMR8049
ESIEE Paris, 2 boulevard Blaise-Pascal, 93162 Noisy-le-Grand Cedex -  France

In this talk we will introduce optimization methods for tomographic reconstruction. In this talk we will cover the following topics:

  • Motivation: tomography as an inverse problem
  • Introduction to optimisation: Objective function; Constraints; Statistical interpretation; Maximum Likelihood (ML) and Maximum a Posteriori (MAP) models.
  • Optimisation and tomography: Inverse problems formulation; Simple solutions: least squares; Filtered Back Projection as a ML formulation; Algebraic methods as a MAP formulation; Regularization functionals; sparsity; Total Variation.
  • Applications: Joint denoising and tomography; Sparse reconstruction; Join segmentation and reconstruction; Local tomography.
  • Software packages : Python, Matlab, C++, Fortran packages for optimization. Dedicated tomography packages.


  • Presentation
Online user: 1