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

Meeting • 24 January 2017

Abstract
I will present a constrained framework for thin sample (2D) image reconstruction in coherent imaging. It estimates a super-resolution image of both phase and amplitude (absorption) of the sample from several intensity only measurements varying the acquisition parameters (depth, illumination angle, wavelength and detector shift). After a brief introduction to light propagation, I will present the possible forward models and their sampling requirements. After a the description of the ADMM scheme for reconstruction, i will show some results on simulations and propose an heuristic to tune the parameters. Finally I will present the work we’ve done with Manon Rostykus and Chris Moser lab on a lensless device.