PHASELESS DIFFRACTION TOMOGRAPHY WITH REGULARIZED BEAM PROPAGATION - Archive ouverte HAL Accéder directement au contenu
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.
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Dates et versions

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

Identifiants

  • HAL Id : hal-01978525 , version 1

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. ⟨hal-01978525⟩
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