Communication Dans Un Congrès Année : 2018

PHASELESS DIFFRACTION TOMOGRAPHY WITH REGULARIZED BEAM PROPAGATION

Résumé

In recent years, researchers have obtained impressive reconstructions of the refractive index (RI) of biological objects through the combined use of advanced physics (nonlinear forward model) and regularization. Here, we propose an adaptation of these techniques for the more challenging problem of intensity-only measurements. It involves a difficult nonconvex optimization problem where phase and distribution of the RI must be jointly estimated. Using an adequate splitting, we leverage recent achievements in phase retrieval and RI reconstruction to perform this task. This yields an efficient reconstruction method with sparsity constraints.

Fichier principal
Vignette du fichier
Phaselessdiffractiontomographywithregularizedbeampropagation-finalversion.pdf (1.01 Mo) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)
Licence
Loading...

Dates et versions

hal-01978525 , version 1 (11-01-2019)

Licence

Identifiants

Citer

Thanh-An Pham, Emmanuel Soubies, Joowon Lim, Alexandre Goy, Ferréol Soulez, et al.. PHASELESS DIFFRACTION TOMOGRAPHY WITH REGULARIZED BEAM PROPAGATION. IEEE International Symposium on Biomedical Imaging (ISBI), 2018, Washington, United States. ⟨10.1109/isbi.2018.8363802⟩. ⟨hal-01978525⟩
154 Consultations
239 Téléchargements

Altmetric

Partager

  • More