Constrained regularized reconstruction of X-ray-DPCI tomograms with weighted-norm.

Détails

ID Serval
serval:BIB_B520A0E7187B
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Constrained regularized reconstruction of X-ray-DPCI tomograms with weighted-norm.
Périodique
Optics Express
Auteur⸱e⸱s
Nilchian M., Vonesch C., Lefkimmiatis S., Modregger P., Stampanoni M., Unser M.
ISSN
1094-4087 (Electronic)
ISSN-L
1094-4087
Statut éditorial
Publié
Date de publication
2013
Volume
21
Numéro
26
Pages
32340-32348
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Résumé
In this paper we introduce a new reconstruction algorithm for X-ray differential phase-contrast Imaging (DPCI). Our approach is based on 1) a variational formulation with a weighted data term and 2) a variable-splitting scheme that allows for fast convergence while reducing reconstruction artifacts. In order to improve the quality of the reconstruction we take advantage of higher-order total-variation regularization. In addition, the prior information on the support and positivity of the refractive index is considered, which yields significant improvement. We test our method in two reconstruction experiments involving real data; our results demonstrate its potential for in-vivo and medical imaging.
Pubmed
Web of science
Création de la notice
18/10/2014 14:55
Dernière modification de la notice
20/08/2019 15:23
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