A reconstruction framework for coherent imaging
Ferréol Soulez, EPFL STI LIB

Meeting • 31 May 2016 • BM 4 233

Abstract
Due to the impossibility to record the phase of visible light, coherent imaging involves intensity only measurements (with or without a reference wave). Thus, for image reconstruction in coherent imaging, we have to face two problems: - the (non-linear) phase retrieval problem to recover the phase of the light in the detector plane, - the (possibly non-linear) reconstruction problem to estimate the (complex) refractive index of the studied sample. In this talk, I propose to jointly solves these problems jointly as a constrained problem that is solved using a augmented Lagrangian formulation. The presentation will have three parts: - a glimpse on convex optimization - proximity operators for intensity measurement - application to telescope tomography.