Imaging cellular ultrastructures using expansion microscopy (U-ExM)

D Gambarotto, FU Zwettler, M Le Guennec… - Nature …, 2019 - nature.com
Determining the structure and composition of macromolecular assemblies is a major
challenge in biology. Here we describe ultrastructure expansion microscopy (U-ExM), an …

From Fienup's phase retrieval techniques to regularized inversion for in-line holography: tutorial

F Momey, L Denis, T Olivier, C Fournier - JOSA A, 2019 - opg.optica.org
This paper includes a tutorial on how to reconstruct in-line holograms using an inverse
problems approach, starting with modeling the observations, selecting regularizations and …

Imaging neural activity in the ventral nerve cord of behaving adult Drosophila

CL Chen, L Hermans, MC Viswanathan… - Nature …, 2018 - nature.com
To understand neural circuits that control limbs, one must measure their activity during
behavior. Until now this goal has been challenging, because limb premotor and motor …

Efficient inversion of multiple-scattering model for optical diffraction tomography

E Soubies, TA Pham, M Unser - Optics express, 2017 - opg.optica.org
Optical diffraction tomography relies on solving an inverse scattering problem governed by
the wave equation. Classical reconstruction algorithms are based on linear approximations …

Biomedical image reconstruction: From the foundations to deep neural networks

MT McCann, M Unser - Foundations and Trends® in Signal …, 2019 - nowpublishers.com
This tutorial covers biomedical image reconstruction, from the foundational concepts of
system modeling and direct reconstruction to modern sparsity and learning-based …

Versatile reconstruction framework for diffraction tomography with intensity measurements and multiple scattering

TA Pham, E Soubies, A Goy, J Lim, F Soulez… - Optics express, 2018 - opg.optica.org
Taking benefit from recent advances in both phase retrieval and estimation of refractive
indices from holographic measurements, we propose a unified framework to reconstruct …

Pocket guide to solve inverse problems with GlobalBioIm

E Soubies, F Soulez, MT McCann, T Pham… - Inverse …, 2019 - iopscience.iop.org
GlobalBioIm is an open-source MATLAB® library for solving inverse problems. The library
capitalizes on the strong commonalities between forward models to standardize the …

B-spline-based exact discretization of continuous-domain inverse problems with generalized TV regularization

T Debarre, J Fageot, H Gupta… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
We study continuous-domain linear inverse problems with generalized total-variation (gTV)
regularization, expressed in terms of a regularization operator L. It has recently been proved …

Reconstruction of in-line holograms: combining model-based and regularized inversion

A Berdeu, O Flasseur, L Méès, L Denis, F Momey… - Optics express, 2019 - opg.optica.org
In-line digital holography is a simple yet powerful tool to image absorbing and/or phase
objects. Nevertheless, the loss of the phase of the complex wavefront on the sensor can be …

Hybrid-spline dictionaries for continuous-domain inverse problems

T Debarre, S Aziznejad, M Unser - IEEE Transactions on Signal …, 2019 - ieeexplore.ieee.org
We study one-dimensional continuous-domain inverse problems with multiple generalized
total-variation regularization, which involves the joint use of several regularization operators …