Contact - General information - News - Research - Publications
Ferréol Soulez
Centre de Recherche Astrophysique de Lyon
UMR 5574 / Université Lyon 1
9 avenue Charles André
F-69561 Saint Genis Laval Cedex
France

(+33) 4 78 86 85 47

ferreol dot soulez at univ-lyon1 dot fr

General information

I'm a research scientist in the high angular resolution group at the observatory of Lyon. My research interests are in inverses problems approaches for signal and image restoration and reconstruction. I focus mainly on possibly space-variant deblurring and autocalibration (i.e. estimation of instrumental parameters from the observation as in blind deconvolution) specifically for multivariate signals (such as hyperspectral data, video, temporal sequences of observations) in a wide range of applications: astronomical imaging, medical imaging, digital holography, astronomical optical interferometry, microscopy, non destructive testing,...

Since February 2012, I'm involved in the POLCA (Processing of pOLychromatic interferometriC data for Astrophysics) project funded by the ANR (Agence Nationale de la Recherche). I work on image reconstruction algorithms in hyperspectral optical interferometry in astronomy.

From 2010 to 2012, I worked two year in the Centre Commun de Quantimetrie, a biological imaging facility of Lyon 1 University, on restoration methods for biology and astronomy. My position was funded by the ANR for the MiTiV (Méthodes Inverses de Traitement en Imagerie du Vivant) project.

In 2009, I worked at INSA Lyon on diffraction peaks extraction algorithms in energy dispersive X ray diffraction (EDXRD) in the context of luggage security screening (ANR research project SPIDERS).

I defend my Phd Thesis in December 2008 in Saint-Etienne University (France). It focused on inverses problems methods for multidimensional data reconstruction.

Latest news

May 2014: My "L2DP3D" deconvolution method has reached the first place of the "Second International Challenge on 3D Deconvolution Microscopy" held during ISBI 2014 in Beijing.

Janvier 2014: Séminaires à l'observatoire de Grenoble le 30 janvier et à Lyon le 7 février sur la reconstruction de données hyperspectrales en astrophysique.

Oct 2013: Slides à propos de la méthode ADMM présentée à la réunion "Optimisation convexe sous contraintes" du gdr ISIS.

July 2013: Here are the slides of my lecture at VISUM summer school in Porto.

April 2013: deconvolution results of the 3D Deconvolution Microscopy ISBI 2013 Challenge The deconvolution method I proposed for the "3D Deconvolution Microscopy ISBI 2013 Challenge" has reached the first place.

December 2012: The poster I presented at the french "journées scientifiques nouvelles méthodologies en imagerie du vivant" in Lyon is available here pdf.

November 2012: Here are the slides of my talks in the METISS team of IRISA Lab., Rennes.

November 2012: I will give a lecture about Blind image restoration at VISUM (VISion Understanding and Machine intelligence) summer school in Porto in (5-12) July, 2013.

Research

Research projects

Hyperspectral image reconstruction in optical interferometry

2013 - present


Context

Spectral average of the reconstructed image  from GRAVITY simulated data Observation of complex objects using existing interferometers as well as the development of future instruments of the VLTI (GRAVITY, MATISSE) highlight the needs of algorithms dedicated to multi-spectral interferometry. In the context of POLCA project, I propose with E. Thiébaut an novel framework for image reconstruction in multi-spectral interferometry.

Key idea(s)

Performing this 3D (x,y,\lambda) reconstruction globally, the new MiRA-3D image reconstruction algorithm for polychromatic interferometry has two main advantages: i) it effectively uses the chromatic dispersion to increase the (u,v) coverage without assuming a "gray" object, ii) it uses the a priori knowledge that the observed object is somewhat spectrally correlated. These priors are enforced by means of spatio-spectral regularization such as spectral total variation or grouped sparsity that I have already proposed in the context of integral field spectrography. MiRA-3D is based on an ADMM framework which split the global optimization problem in a succession of smaller and easier problems. Solving each of these small problems rely on expressing the corresponding so-called "proximal operator" for both the data fidelity terms (with respect to complex visibilities, power spectrum and phase closures) and the regularization terms (total variation, spatio-spectral grouped sparsity ...)

Results

This new framework is very flexible: changing the prior and/or the type of interferometric is done by changing the coresponding prox operator. On GRAVITY simulation, the error on stars position is below 0.1 mas and the error on recosntructed star spectra is below 1%.

Related publications:

"An image reconstruction framework for polychromatic interferometry" F. Soulez and E. Thiébaut in Improving the performances of current optical interferometers - International Colloquium at haute provence observatory, St Michel l'observatoire : France Sept. 2013. (slides)
 

A posteriori fringe sensing in optical interferometry

2013 - present


Context

Monomode optical interferometers get rid of atmospheric effects by integrating observables which are insensitive to the differential pistons between the interfering telescopes. For instance, the Fourier phase of the object is preserved in the so-called phase closures. This is however to the detriment of the amount of measured information.

Key idea(s)

Exploiting the chromatic behavior of the differential pistons, it is in principle possible to perform "a posteriori fringe tracking" to coherently add the complex visibilities of the short exposure fringe patterns and thus not only enhance the signal to noise ratio but also minimize the loss of information. To benefit from these improvements, there are several important difficulties. First, a global optimization has to be solved to estimate the instantaneous differential piston parameters from the available data. Second, specific image restoration methods have to be designed to deal with the resulting integrated observables.

Related publications:

"A posteriori finge sensing" F. Soulez, E. Thiébaut, M. Tallon and I. Tallon-Bosc in Improving the performances of current optical interferometers - International Colloquium at haute provence observatory, St Michel l'observatoire : France Sept. 2013. (slides)
 

 

Blind deconvolution in fluorescence microscopy

2010 - present


Context

A good estimate of the PSF is mandatory to perform non blind deconvolution. In wide field fluorescence microscopy, such an estimate is derived of theoretical models or calibrated using fluorescent beads. However, using only known parameters about the setup (wavelength, NA, refractive index,...), theoretical models lack flexibility to represents the wide variety of PSFs. Similarly, measured PSFs are often noisy due to the small size of calibration beads, especially at high numerical aperture.

Key idea(s)

Blind deconvolution algorithms bypass the problem of PSF calibration by simultaneously estimating the PSF and the object. The 3D PSF is modeled after a parametrized pupil function. The PSF parameters are estimated jointly with the object in a maximum a posteriori framework.

Results

In wide field fluorescence microscopy, our method outperforms state-of-the art blind and non-blind deconvolution methods and gives a depth resolution close to the lateral resolution.

Related publications:

"Blind deconvolution of 3d data in wide field fluorescence microscopy" F. Soulez, L. Denis, Y. Tourneur and E. Thiébaut in 9th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, Barcelona, Spain, May 2012. (pdf,slides)
 

Space-variant deblurring in astronomy and biomedical imaging

2010 - present


Context

deconvolution of Hubble Space Telescope simulations Image deblurring is essential to high resolution imaging and is therefore widely used in astronomy, microscopy or computational photography. While shift-invariant blur is modeled by convolution and leads to fast FFT-based algorithms, shift-variant blurring requires models both accurate and fast. When the point spread function (PSF) varies smoothly across the field, these two opposite objectives can be reached by interpolating from a grid of PSF samples.

Key idea(s)

We developped a physically grounded model for PSF modeling that leads to a fast and accurate shift-variant blurring operator.

Results

We applied our model to simulations of Hubble Space Telescope data and shown good reconstruction performance.

Related publications:

"Fast model of space-variant blurring and its application to deconvolution in astronomy," L. Denis, E. Thiébaut, and F. Soulez, IEEE International Conference on Image Processing (ICIP), Brussels, September 2011. (pdf,poster)
 

Deconvolution of hyperspectral astronomical data

2008 - present


Context

spatio-spectral cut of a restored integral field spectrograph data Integral field spectrographs are popular astronomical instruments that provide hyperspectral images. These data cube give much more information than monochromatic images but have a low signal to noise ratio.

Key idea(s)

Using a fast model of spectrally varying blur, we design a iterative restoration method taking into account specificity of real data (narrow field, high dynamic, non-stationary noise,..).

Results

Results show a significant gain both in term of resolution and in term of denoising with some field of view extrapolation.

Related publications:

“Restoration of hyperspectral astronomical data with spectrally varying blur,” F. Soulez, E. Thiébaut and L. Denis, to appear in EAS Publication series.
 
“3-D deconvolution of hyper-spectral astronomical data,” S. Bongard, F. Soulez, E. Thiébaut, and E. Pécontal Monthly Notices of the Royal Astronomical Society, 2011, 418 (1), pp 258-270.
 

Spectral demixing in a sequence of hyperspectral observation

2008 - 2011


Context

host galaxy extracted from the  observation sequence The Nearby Supernova factory use Type Ia supernovae as cosmogical probes to measure the expansion history of the Universe. To that aim, it is mandatory to extract precisely their spectrum and to follow its evolution using a sequence of integral field spectrographic observations. Unfortunately, flux from the supernova, from its host galaxy and from the sky background are mixed by the atmospheric turbulence.

Key idea(s)

We have defined different priors for each component of the data (SN, galaxy and sky): the SN is spectrally and temporally varying punctual source, the galaxy is spatially and spatially structured and does not vary with time, the sky background is spatially flat, the PSF varies spectrally and temporally according to physical laws,... Using these priors, each component is deconvolved and extracted from the (x,y,lambda,t) data,

Results

The host galaxy is restored even outside of the field of view of the IFU. The supernova spectra are extracted without bias leading to a better fit of the luminosity curves. This method doubled the number of unbiased supernovae that could be included in subsequent studies.

Related publications:

“4D deconvolution and demixing for supernova follow-up”, S. Bongard, E. Thiébaut and F. Soulez, proc. of WHISPERS 2009, Grenoble, August 2009.
 
“Multi-Wavelength, Multi-Epoch Integral Field Spectrograph Extraction for the Nearby Supernova Factory”, S. Bongard et al., 213th Meeting of the American Astronomical Society with HAD and HEAD, Long Beach, 2009.
 

Blind deconvolution of video sequences

2006 - present


Context

The study of dynamical phenomena involve the acquisition require acquisition of observation sequences with a very short exposure time. This results in low flux observations and therefore low signal to noise ratio. In addition, the imaging system inevitably introduces a blur that degrades the instrumental resolution observations.

Key idea(s)

The whole sequence being observed with the same instrument, one can assume that the blur varies slowly over time. With this assumption, we propose to use the entire sequence to constrain the PSF estimation.

Results

This blind deconvolution method had proven its capability and robustness in three types of modality: coronarography, confocal microscopy and bright field microscopy.

Related publications:

"Heterogeneous Multidimensional Data Deblurring", F. Soulez, E. Thiébaut, A. Gressard, R. Dauphin and S. Bongard, EUSIPCO, Lausanne, August, 2008. (pdf)
 
"Blind deconvolution of video sequences", F. Soulez, E. Thiébaut, Y. Tourneur, A. Gressard and R. Dauphin, IEEE International Conference on Image Processing (ICIP), San Diego, October, 2008. (pdf,slides)
 

 

Particle detection in digital holography

2006 - 2008


Context

particle detection algorithm Digital holography is the method of choice for time-resolved 3D measurement of the location of particles in a flow. These measurements are crucial to validate numerical simulations of turbulence. The 3D location of several particles can be recovered from a single hologram by analyzing their diffraction patterns. Classically, this is performed in two steps: first, a 3D volume is reconstructed by simulating optical diffraction of the hologram. Then, the maximum of focus location of the image of each particle is detected. These approaches suffer from severe bias close to the hologram boundaries, and false detections occur due to multiple focusing or speckle noise.

Key idea(s)

Such drawbacks can be circumvent by following an inverse problem approach. Instead of reconstructing a 3D volume image from the hologram, particles are directly detected by matching the diffraction patterns on the hologram. An approach similar to the matching pursuit algorithm is proposed, with sub-pixel refinement by local optimization.

Results

The accuracy of the detection is improved by a factor 5 compared to that of classical techniques in a standard experimental configuration. Out-of-field detection is demonstrated, even far from the hologram boundaries.

Related publications:

"Inverse problem approach for particle digital holography: out-of-field particle detection made possible," F. Soulez, L. Denis, E. Thiébaut, C. Fournier, and C. Goepfert, J. Opt. Soc. Am. A, 24 (12), 3708-3716, 2007. (pdf, doi)
 
"Inverse problem approach for particle digital holography: accurate location based on local optimisation," F. Soulez, L. Denis, C. Fournier, E. Thiébaut, and C. Goepfert, J. Opt. Soc. Am. A, 24 (4), 1164-1171, 2007. (pdf, doi)
 
"Digital holography of particles: experimental parameters setting and benefits of the inverse problems approach," J. Gire, L. Denis, C. Fournier, C. Ducottet, E. Thiebaut, and F. Soulez, Meas. Sci. Tech., 19, 2008. (pdf, doi)
 

Publications

Journal articles

2018

titre
Versatile reconstruction framework for diffraction tomography with intensity measurements and multiple scattering
auteur
Thanh-An Pham, Emmanuel Soubies, Alexandre Goy, Joowon Lim, Ferréol Soulez, Demetri Psaltis, Michael Unser
article
Optics Express, Optical Society of America, 2018, 26 (3), pp.2749-2763
Resume_court
Taking benefit from recent advances in both phase retrieval and estimation of refractive indices fro .....
Accès au texte intégral et bibtex
https://hal-insu.archives-ouvertes.fr/insu-01690828/file/Versatile%20reconstruction%20framework%20for%20diffraction%20tomography%20with%20intensity%20measurements%20and%20multiple%20scattering_Pham_2018.pdf BibTex

2017

titre
DeconvolutionLab2: An open-source software for deconvolution microscopy
auteur
Daniel Sage, Lauréne Donati, Ferréol Soulez, Denis Fortun, Guillaume Schmit, Arne Seitz, Romain Guiet, Cédric Vonesch, Michael Unser
article
Methods, Elsevier, 2017, 115, pp.28-41. 〈10.1016/j.ymeth.2016.12.015〉
Resume_court
Images in fluorescence microscopy are inherently blurred due to the limit of diffraction of light. T .....
Accès au texte intégral et bibtex
https://hal-insu.archives-ouvertes.fr/insu-01632774/file/DeconvolutionLab2%3A%20An%20open-source%20software%20for%20deconvolution.pdf BibTex
titre
Compact in-line lensfree digital holographic microscope
auteur
Manon Rostykus, Ferréol Soulez, Michael Unser, Christophe Moser
article
Methods, Elsevier, 2017, 〈10.1016/j.ymeth.2017.11.008〉
Resume_court
Phase imaging provides intensity contrast to visualize transparent samples such as found in biology .....
Accès au texte intégral et bibtex
https://hal-insu.archives-ouvertes.fr/insu-01696945/file/Compact%20in-line%20lensfree%20digital%20holographic%20microscope_Rostikus2017.pdf BibTex
titre
Compact lensless phase imager
auteur
Manon Rostykus, Ferréol Soulez, Michael Unser, Christophe Moser
article
Optics Express, Optical Society of America, 2017, 25 (4), pp.889 - 895. 〈10.1364/OE.25.004438〉
Resume_court
Lensless quantitative phase imaging is of high interest for obtaining a large field of view (FOV), t .....
Accès au texte intégral et bibtex
https://hal-insu.archives-ouvertes.fr/insu-01632709/file/Compact%20lensless%20phase%20imager%20.pdf BibTex
titre
Structure of Herbig AeBe disks at the milliarcsecond scale
auteur
B. Lazareff, J.-P Berger, J. Kluska, J.-B. Le Bouquin, M. Benisty, F. Malbet, C. Koen, C. Pinte, W.-F Thi, O. Absil, F. Baron, A. Delboulbé, G. Duvert, A. Isella, L. Jocou, A. Juhasz, S. Kraus, R. Lachaume, F. Ménard, R. Millan-Gabet, J. D. Monnier, T. Moulin, K. Perraut, S. Rochat, F. Soulez, M. Tallon, E. Thiébaut, W. Traub, G. Zins
article
Astronomy and Astrophysics - A&A, EDP Sciences, 2017, 599, pp.A85. 〈10.1051/0004-6361/201629305〉
Resume_court
Context. It is now generally accepted that the near-infrared excess of Herbig AeBe stars originates .....
Accès au texte intégral et bibtex
https://hal-insu.archives-ouvertes.fr/insu-01632780/file/Structure%20of%20Herbig%20AeBe%20disks%20at%20the%20milliarcsecond%20scale.pdf BibTex

2016

titre
Proximity Operators for Phase Retrieval
auteur
Ferréol Soulez, Éric Thiébaut, Antony Schutz, André Ferrari, Frédéric Courbin, Michael Unser
article
Applied optics, Optical Society of America, 2016, 55 (26), pp.6640 - 6640. 〈10.1364/AO.55.007412〉
Resume_court
We present a new formulation of a family of proximity operators that generalize the projector step f .....
Accès au texte intégral et bibtex
https://hal-insu.archives-ouvertes.fr/insu-01632688/file/proximity-operators-phase.pdf BibTex
titre
A disk asymmetry in motion around the B[e] star MWC158
auteur
J. Kluska, M. Benisty, Ferréol Soulez, J.-P. Berger, J.-B Le Bouquin, F. Malbet, B. Lazareff, E. Thiébaut
article
Astronomy and Astrophysics - A&A, EDP Sciences, 2016, 591, pp.82 - 82. 〈10.1051/0004-6361/201527924〉
Resume_court
Context. MWC158 is a star with the B[e] phenomenon that shows strong spectrophotometric variability .....
Accès au texte intégral et bibtex
https://hal-insu.archives-ouvertes.fr/insu-01632786/file/1605.05262.pdf BibTex

2015

titre
Fast Approximations of Shift-Variant Blur
auteur
Loïc Denis, Éric Thiébaut, Ferréol Soulez, Jean-Marie Becker, Rahul Mourya
article
International Journal of Computer Vision, Springer Verlag, 2015, 115 (3), pp 253-278. 〈http://link.springer.com/article/10.1007/s11263-015-0817-x〉. 〈10.1007/s11263-015-0817-x〉
Resume_court
Image deblurring is essential in high resolution imaging, e.g., astronomy, microscopy or computation .....
Accès au texte intégral et bibtex
https://hal-ujm.archives-ouvertes.fr/ujm-00979825/file/IJCV_denis_approx_inv_shiftvariant_blur_R2.pdf BibTex

2014

titre
SPARCO : a semi-parametric approach for image reconstruction of chromatic objects. Application to young stellar objects
auteur
J. Kluska, F. Malbet, J.-P. Berger, F. Baron, B. Lazareff, J.-B. Le Bouquin, J. D. Monnier, F. Soulez, Éric Thiébaut
article
Astronomy and Astrophysics - A&A, EDP Sciences, 2014, 564, pp.A80. 〈10.1051/0004-6361/201322926〉
Resume_court
Context. The emergence of optical interferometers with three and more telescopes allows image recons .....
Accès au bibtex
https://arxiv.org/pdf/1403.3343 BibTex

2013

titre
Restoration of hyperspectral astronomical data with spectrally varying blur
auteur
Ferréol Soulez, Éric Thiébaut, Loïc Denis
article
EAS Publications Series, EDP Sciences, 2013, 59, pp.403--416. 〈10.1051/eas/1359018〉
Resume_court
In this paper we present a method for hyper-spectral image restoration for integral field spectrogra .....
Accès au texte intégral et bibtex
https://hal.archives-ouvertes.fr/hal-00771955/file/Papier-Frejus.pdf BibTex
titre
Exploiting spatial sparsity for multi-wavelength imaging in optical interferometry
auteur
Éric Thiébaut, Ferréol Soulez, Loïc Denis
article
Journal of the Optical Society of America. A Optics, Image Science, and Vision, Optical Society of America, 2013, 30 (2), pp.160-170
Resume_court
Optical interferometers provide multiple wavelength measurements. In order to fully exploit the spec .....
Accès au bibtex
https://arxiv.org/pdf/1209.2362 BibTex

2011

titre
Diffraction peaks restoration and extraction in energy dispersive X-ray diffraction
auteur
Ferréol Soulez, Charles Crespy, Valerie Kaftandjian, Philippe Duvauchelle
article
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Elsevier, 2011, pp.10.1016/j.nima.2011.06.037. 〈10.1016/j.nima.2011.06.037〉
Resume_court
This paper proposes a method to restore energy dispersive X-ray diffraction (EDXRD) spectra and to e .....
Accès au texte intégral et bibtex
https://hal.archives-ouvertes.fr/hal-00605917/file/EXRD_E.pdf BibTex
titre
3-D deconvolution of hyper-spectral astronomical data
auteur
S. Bongard, F. Soulez, Éric Thiébaut, E. Pécontal
article
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P - Oxford Open Option A, 2011, 418 (1), pp.258-270
Resume_court
In this paper we present a general forward fitting method for multichannel image restoration based o .....
Accès au bibtex
https://arxiv.org/pdf/1107.4049 BibTex

2010

titre
Energy dispersive X-ray diffraction to identify explosive substances : spectra analysis procedure optimization
auteur
Charles Crespy, Philippe Duvauchelle, Valerie Kaftandjian, Ferréol Soulez, Pascal Ponard
article
Nuclear Instruments and Methods in Physics Research, Elsevier, 2010, 623 (3), pp.1050-1060
Resume_court
To detect the presence of explosives in packages,automated systems are required. Energy dispersive X .....
Accès au texte intégral et bibtex
https://hal.archives-ouvertes.fr/hal-00878519/file/article_Charles.pdf BibTex

2008

titre
Digital holography of particles: benefits of the “inverse problem” approach
auteur
Jérôme Gire, Loïc Denis, Corinne Fournier, Éric Thiébaut, Ferréol Soulez, Christophe Ducottet
article
Measurement Science and Technology, IOP Publishing, 2008, 19, pp.074005. 〈10.1088/0957-0233/19/7/074005〉
Resume_court
The potential of in-line digital holography to locate and measure the size of particles distributed .....
Accès au texte intégral et bibtex
https://hal-ujm.archives-ouvertes.fr/ujm-00270818/file/MST_gire08.pdf BibTex

2007

titre
Inverse problem approach for particle digital holography: accurate location based on local optimisation
auteur
Ferréol Soulez, Loïc Denis, Corinne Fournier, Éric Thiébaut, Charles Goepfert
article
Journal of the Optical Society of America. A Optics, Image Science, and Vision, Optical Society of America, 2007, 24 (4), pp.1164-1171
Resume_court
This paper proposes a new micro-particles localization scheme in digital holography. Most convention .....
Accès au texte intégral et bibtex
https://hal-ujm.archives-ouvertes.fr/ujm-00119130/file/JOSAA_soulez07a.pdf BibTex
titre
Inverse problem approach in Particle Digital Holography : out-of-field particle detection made possible
auteur
Ferréol Soulez, Loïc Denis, Éric Thiébaut, Corinne Fournier, Charles Goepfert
article
Journal of the Optical Society of America. A Optics, Image Science, and Vision, Optical Society of America, 2007, 24 (12), pp.3708-3716. 〈10.1364/JOSAA.24.003708〉
Resume_court
We propose a microparticle detection scheme in digital holography. In our inverse problem approach, .....
Accès au texte intégral et bibtex
https://hal-ujm.archives-ouvertes.fr/ujm-00192619/file/JOSAA_soulez07b.pdf BibTex

Conference papers

2017

titre
GlobalBioIm: A Unifying Computational Framework for Solving Inverse Problems
auteur
Michael Unser, Emmanuel Soubies, Ferréol Soulez, Michael Mccann, Laurène Donati
article
OSA Imaging and Applied Optics Congress on Computational Optical Sensing and Imaging (COSI'17), 2017, San Francisco, United States. OSA Technical Digest
Resume_court
We present a unifying framework for the development of state-of-the-art reconstruction algorithms in .....
Accès au bibtex
BibTex

2016

titre
Superresolution with Optically-Motivated Blind Deconvolution
auteur
Ferréol Soulez, Michael Unser
article
OSA Congress Imaging and Applied Optics 2016, Jul 2016, Heidelberg, Germany. 180, pp.2520 - 2520, 3D Image Acquisition and Display: Technology, Perception and Applications in Proceedings Imaging and Applied Optics 2016
Resume_court
We show in this paper that an optically motivated parameterization of the PSF prevents classical deg .....
Accès au texte intégral et bibtex
https://hal-insu.archives-ouvertes.fr/insu-01632728/file/Superresolution%20with%20Optically-Motivated%20Blind.pdf BibTex
titre
Back-propagating the light of field stars to probe telescope mirrors aberrations
auteur
Ferréol Soulez, Frédéric Courbin, Michael Unser
article
SPIE Astronomical Telescopes + Instrumentation Conference on Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II (SPIE-ATI'16), 2016, Edinburgh, United Kingdom. 〈10.1117/12.2232702〉
Resume_court
We propose a wavefront-based method to estimate the PSF over the whole field of view. This method es .....
Accès au texte intégral et bibtex
https://hal-insu.archives-ouvertes.fr/insu-01632844/file/Back-propagating%20the%20light%20of%20field%20stars%20to%20probe%20telescope.pdf BibTex
titre
Effective a posteriori co-phasing of interferometric fringe data
auteur
Antony Schutz, Éric Thiébaut, Ferréol Soulez, Michel Tallon, Gilles Duvert, Isabelle Tallon-Bosc
article
SPIE Astronomical Telescopes + Instrumentation Conference on Optical and Infrared Interferometry and Imaging V (ATI'16), 2016, Edinburgh, United Kingdom. 9907, pp.99073 - 99074, 〈10.1117/12.2232915〉
Resume_court
We have recently shown that a posteriori co-phasing of multi-spectral interferograms was possible. 1 .....
Accès au texte intégral et bibtex
https://hal-insu.archives-ouvertes.fr/insu-01632827/file/Effective%20a%20posteriori%20co-phasing%20of%20interferometric%20fringe%20data.pdf BibTex
titre
Interbands phase models for polychromatic image reconstruction in optical interferometry
auteur
Antony Schutz, André Ferrari, Éric Thiébaut, Ferréol Soulez, Martin Vannier, David Mary
article
Astronomical Telescopes + Instrumentation Conference on Optical and Infrared Interferometry and Imaging , 2016, Edimburgh, United Kingdom. 〈10.1117/12.2233010〉
Resume_court
This paper presents an extension of the spatio-spectral (" 3D ") image reconstruction algorithm call .....
Accès au texte intégral et bibtex
https://hal-insu.archives-ouvertes.fr/insu-01632820/file/Interbands%20phase%20models%20for%20polychromatic%20image.pdf BibTex
titre
Global optimization for image restoration in optical/IR interferometry
auteur
Matthew Ozon, Éric Thiébaut, Ferréol Soulez, Jonathan Léger
article
SPIE Astronomical Telescopes + Instrumentation Conference on Optical and Infrared Interferometry and Imaging V (SPIE-ATI'16), 2016, Edinburgh, United Kingdom. 〈10.1117/12.2233312〉
Resume_court
Many image reconstruction algorithms have been proposed to cope with optical/IR interferometric data .....
Accès au texte intégral et bibtex
https://hal-insu.archives-ouvertes.fr/insu-01632834/file/Global%20optimization%20for%20image%20restoration%20in%20optical%3AIR.pdf BibTex
titre
Direct temperature map estimation in optical long baseline interferometry
auteur
F. Soulez, É. Thiébaut, J. Kluska, M. Tallon, A. Schutz, A. Ferrari
article
SPIE Optical and Infrared Interferometry and Imaging V, Jul 2016, Edimburgh, France. SPIE Optical and Infrared Interferometry and Imaging V, 〈10.1117/12.2232577〉
Resume_court
We present a method to recontruct temperature map directly from spectro-interferometric data. It use .....
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https://hal-insu.archives-ouvertes.fr/insu-01632758/file/Soulez2016-TempMap.pdf BibTex

2015

titre
LARGE SCALE 3D IMAGE RECONSTRUCTION IN OPTICAL INTERFEROMETRY
auteur
Antony Schutz, André Ferrari, David Mary, Éric Thiébaut, Ferréol Soulez
article
EUSIPCO, Aug 2015, NICE, France
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Astronomical optical interferometers (OI) sample the Fourier transform of the intensity distribution .....
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https://hal.archives-ouvertes.fr/hal-01123500/file/Painter_Eusipco.pdf BibTex

2014

titre
A ''learn 2D, apply 3D'' method for 3D deconvolution microscopy
auteur
Ferréol Soulez
article
International symposium on biomedical imaging, May 2014, Beijing, China. 2014
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This paper presents a 3D deconvolution method for fluorescence microscopy that reached the first pla .....
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https://hal.archives-ouvertes.fr/hal-00914839/file/2014-ISBI-C2DP3D.pdf BibTex
titre
Fast automatic myopic deconvolution of angiogram sequence
auteur
Louis Thibon, Ferréol Soulez, Éric Thiébaut
article
International Symposium on Biomedical Imaging, Apr 2014, Beijing, China. 2014
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We present a fast unsupervised myopic deconvolution method dedicated to quasi-real time processing o .....
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https://hal.archives-ouvertes.fr/hal-00914846/file/ISBI_2014_Myopic.pdf BibTex

2013

titre
Déconvolution aveugle en microscopie de fluorescence 3D
auteur
Ferréol Soulez, Éric Thiébaut, Yves Tourneur, Loïc Denis
article
GRETSI 2013, Sep 2013, brest, France. 2013
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Dans ce papier, nous proposons une méthode de déconvolution aveugle estimant la fonction de flou ( .....
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https://hal.archives-ouvertes.fr/hal-00914941/file/WFFM-Bdec-GRETSI-2013_final.pdf BibTex
titre
Détection de sources en interférométrie optique hyperspectrale}
auteur
Ferréol Soulez, Éric Thiébaut
article
GRETSI 2013, Sep 2013, Brest, France. 2013
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En faisant interférer la lumière provenant de plusieurs télescopes, l'interférométrie optique f .....
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https://hal.archives-ouvertes.fr/hal-00914949/file/Multispectral-interferometry-GRETSI-2013_final.pdf BibTex
titre
An image reconstruction framework for polychromatic interferometry
auteur
Ferréol Soulez, Éric Thiébaut
article
International Colloquium at haute provence observatory, Sep 2013, St Michel l'observatoire, France. 2013
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titre
A posteriori fringes sensing
auteur
Ferréol Soulez, Éric Thiébaut, Michel Tallon, Isabelle Tallon-Bosc
article
International Colloquium at haute provence observatory, Sep 2013, St Michel l'observatoire, France. 2013
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2012

titre
Blind deconvolution of 3D data in wide field fluorescence microscopy
auteur
Ferréol Soulez, Loïc Denis, Yves Tourneur, Éric Thiébaut
article
International Symposium on Biomedical Imaging, May 2012, Barcelone, Spain. pp.CDROM, 2012
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In this paper we propose a blind deconvolution algorithm for wide field fluorescence microscopy. The .....
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https://hal.archives-ouvertes.fr/hal-00691249/file/PapierISBI.pdf BibTex
titre
Multi-wavelength imaging algorithm for optical interferometry
auteur
Éric Thiébaut, Ferréol Soulez
article
SPIE Astronomical Telescopes and Instrumentation, Jul 2012, Amsterdam, Netherlands. 8445, pp.34
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Optical interferometers provide multiple wavelength measurements. In order to fully exploit the spec .....
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https://hal.archives-ouvertes.fr/hal-00715809/file/Thiebaut_Soulez-2012-Amsterdam.pdf BibTex
titre
The 2012 interferometric imaging beauty contest
auteur
Fabien Baron, William D. Cotton, Peter R. Lawson, Steve T. Ridgway, Alicia Aarnio, John D. Monnier, Karl-Heinz Hofmann, Dieter Schertl, Gerd Weigelt, Éric Thiébaut, Ferréol Soulez, David Mary, Florentin Millour, Martin Vannier, John Young, Nicholas M. Elias, Henrique R. Schmitt, Sridharan Rengaswamy
article
Optical and Infrared Interferometry III., Jul 2012, Amsterdam, Netherlands. 8445, pp.84451E-14, 2012, 〈10.1117/12.924907〉
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We present the results of the fifth Interferometric Imaging Beauty Contest. The contest consists in .....
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https://arxiv.org/pdf/1207.7141 BibTex

2011

titre
Restauration en diffraction de rayon X en dispersion d'énergie
auteur
Ferréol Soulez, Charles Crespy, Valerie Kaftandjian, Philippe Duvauchelle
article
GRETSI, Sep 2011, Bordeaux, France. pp.CDROM, 2011
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Dans ce papier, nous proposons une méthode de restauration de spectre acquis en en diffraction de r .....
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https://hal.archives-ouvertes.fr/hal-00656831/file/gretsi_final.pdf BibTex
titre
Déconvolution de données hyper-spectrales en astronomie
auteur
Ferréol Soulez, Sébastien Bongard, Éric Thiébaut
article
GRETSI 2011, Sep 2011, Bordeaux, France. pp.CD, 2011
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Ce papier présente une méthode de déconvolution de données hyper-spectrales prenant en compte le .....
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https://hal.archives-ouvertes.fr/hal-00618686/file/ddt-paper-a-GRETSI-final.pdf BibTex
titre
Restoration of hyperspectral astronomical data from Integral field spectrograph
auteur
Ferréol Soulez, Sébastien Bongard, Éric Thiébaut, Roland Bacon
article
WHISPERS'11, Jun 2011, Lisbonne, Portugal. pp.CDROM, 2011
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In this paper we present a method for hyper-spectral image restoration for integral field spectrogra .....
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https://hal.archives-ouvertes.fr/hal-00618678/file/ddt-paper-a-whispers.pdf BibTex
titre
Un modèle rapide de flou variable dans le champ de flou variable dans le champ et son application a la déconvolution en astronomie
auteur
Loïc Denis, Éric Thiébaut, Ferréol Soulez
article
GRETSI 2011, Sep 2011, Bordeaux, France. pp.CD, 2011
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La déconvolution d'images est essentielle pour l'imagerie haute résolution et est par conséquent .....
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https://hal.archives-ouvertes.fr/hal-00618705/file/gretsi2011_full_DenisThiebautSoulez.pdf BibTex
titre
Fast model of space-variant blurring and its application to deconvolution in astronomy
auteur
Loïc Denis, Éric Thiébaut, Ferréol Soulez
article
ICIP 2011, Sep 2011, Bruxelles, France. pp.2873-2876, 2011
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Image deblurring is essential to high resolution imaging and is therefore widely used in astronomy, .....
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https://hal.archives-ouvertes.fr/hal-00618696/file/ICIP2011.pdf BibTex

2010

titre
Super-Resolution for Line Parallel Imaging in Energy Dispersive X-Ray Diffraction
auteur
Ferréol Soulez, Charles Crespy, Valerie Kaftandjian, Philippe Duvauchelle, Angela Peterzol, Pascal Ponard
article
10th European Conference on Non-Destructive Testing, Jun 2010, Moscow, Russia. pp.0, 2010
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We present a proof of concept for a new approach for Energy Dispersive X Ray Diffraction (EDXRD) ima .....
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https://hal.archives-ouvertes.fr/hal-00551450/file/ECNDT.pdf BibTex

2009

titre
Déconvolution aveugle de séquences vidéo
auteur
Ferréol Soulez, Éric Thiébaut, Yves Tourneur, Alain Gressard, Raphaël Dauphin
article
22eime colloque GRETSI, Sep 2009, Dijon, France. 4p., 2009
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Nous proposons ici une méthode pour la déconvolution aveugle de séquences d'images. Dans une appr .....
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https://hal.archives-ouvertes.fr/hal-00408222/file/Video_Gretsi_final.pdf BibTex
titre
Joint deconvolution and demosaicing
auteur
Ferréol Soulez, Éric Thiébaut
article
16th International Conférence on Image Processing, Nov 2009, Le Caire, Egypt. 4p., 2009
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We present a new method to jointly perform deblurring and color- demosaicing of RGB images. Our meth .....
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https://hal.archives-ouvertes.fr/hal-00408220/file/mosaic_icip-CR.pdf BibTex
titre
4D deconvolution and demixing for supernova follow-up
auteur
Sébastien Bongard, Éric Thiébaut, Ferréol Soulez, Emmanuel Pecontal
article
the First IEEE GRSS Workshop on Hyperspectral Image and Signal Processing - Evolution in Remote Sensing - (WHISPERS'09), Aug 2009, Grenoble, France. pp.0-0, 2009
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We present an inverse problem approach to jointly solve a problem of deconvolution and demixing of s .....
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https://hal.archives-ouvertes.fr/hal-00436646/file/ddt-paper-b-whispers.pdf BibTex

2008

titre
Heterogeneous Multidimensional Data Deblurring
auteur
Ferréol Soulez, Éric Thiébaut, Alain Gressard, Raphaël Dauphin, Sébastien Bongard
article
16th European Signal Processing Conference (EUSIPCO 2008), Aug 2008, Lausanne, Switzerland. pp.0, 2008
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We present a new scheme for deconvolution of heterogeneous multidimensional data (\eg spatio-tempora .....
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https://hal-ujm.archives-ouvertes.fr/ujm-00293660/file/Soulez_EUSIPCO.pdf BibTex
titre
BLIND DECONVOLUTION OF VIDEO SEQUENCES
auteur
Ferréol Soulez, Éric Thiébaut, Yves Tourneur, Alain Gressard, Raphaël Dauphin
article
15th International Conférence on Image Processing, Oct 2008, San Diego, United States. pp.0, 2008
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We present a new blind deconvolution method for video sequence. It is derived following an inverse p .....
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https://hal-ujm.archives-ouvertes.fr/ujm-00293656/file/Video_icip-CR.pdf BibTex
titre
Signal to noise characterization of an inverse problem-based algorithm for digital inline holography
auteur
Jérôme Gire, Christophe Ducottet, Loïc Denis, Éric Thiébaut, Ferréol Soulez
article
JP Prenel - Y Bailly. ISFV13, 13th International Symposium on Flow Visualization, Jul 2008, Nice, France. pp.Session 39, ID226, 2008
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In-line holography is a 3D imaging technique which has been used for many years, especially in exper .....
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https://hal-ujm.archives-ouvertes.fr/ujm-00297147/file/articleISFV13Final.pdf BibTex
titre
Deconvolution of (x ,y, wavelength) images
auteur
Ferréol Soulez, Éric Thiébaut, Sébastien Bongard
article
Astronomical Data Analysis V, May 2008, Heraklion, Greece. pp.14, 2008
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Currently, image deconvolution receives increasing attention from the academic world. However, few w .....
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2007

titre
Inverse Problem Approach for Particle Digital Holography: Field of View Extrapolation and Accurate Location
auteur
Ferréol Soulez, Éric Thiébaut, Loïc Denis, Corinne Fournier
article
Adaptive Optics: Analysis and Methods /Computational Optical Sensing and Imaging/Information Photonics/Signal Recovery and Synthesis Topical Meetings, Jun 2007, Vancouver, Canada. OSA Technical Digest (Optical Society of America), pp.DWC3, 2007
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titre
Une approche problèmes inverses pour la détection de micro-particules en holographie numérique.
auteur
Ferréol Soulez, Éric Thiébaut, Loïc Denis, Corinne Fournier
article
12 ème colloque GRETSI Traitement du Signal et des Images, Sep 2007, Troyes, France. pp.151-154, 2007
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titre
Inverse problem approach for particle digital holography: accurate location
auteur
Ferréol Soulez, Loïc Denis, Éric Thiébaut, Corinne Fournier
article
Physics in Signal and Image Processing, Jan 2007, Mulhouse, France. Université de Mulhouse, pp.152-163, 2007
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Optical holography allows to record tridimensionnal informations of a scene using only one 2D sensor .....
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https://hal-ujm.archives-ouvertes.fr/ujm-00143344/file/PSIP2007.pdf BibTex
titre
“Inverse problems” approach for digital in-line holography: influence of experimental parameters and benefits
auteur
Corinne Fournier, Jérôme Gire, Loïc Denis, Éric Thiébaut, Ferréol Soulez, Christophe Ducottet
article
Workshop on Digital Holographic Reconstruction and Optical Tomography for Engineering Applications, Apr 2007, Loughborough, United Kingdom. Loughborough Unviversity, pp.ISBN 978 0 947974 56 5, 2007
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2006

titre
Holographie Numérique de microparticules : amélioration du positionnement grâce à une approche problèmes inverses
auteur
Corinne Fournier, Loïc Denis, Ferréol Soulez, Éric Thiébaut
article
7ème colloque francophone "Méthodes et techniques optiques pour l'industrie", Nov 2006, Mulhouse, France
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BibTex
titre
Digital Holography compared to Phase Doppler Anemometry: study of an experimental droplet flow
auteur
Corinne Fournier, Charles Goepfert, Jean-Louis Marié, Loïc Denis, Ferréol Soulez, Michel Lance, Jean-Paul Schon
article
Optimage Ltd. 12th International Symposium on Flow Visualization, Sep 2006, Göttingen, Germany. pp.ISBN 0-9533991-8-4, 2006
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Holography is a well-known technique to measure 3D location, velocity, and sizing in a large volume. .....
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2003

titre
Improving polyphonic and poly-instrumental music to score alignment
auteur
Ferréol Soulez, Xavier Rodet, Diemo Schwarz
article
International Conference on Music Information Retrieval (ISMIR), Oct 2003, Baltimore, United States. pp.6, 2003
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Music alignment links events in a score and points on the audio performance time axis. All the parts .....
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https://hal-ujm.archives-ouvertes.fr/ujm-00285599/file/ISMIR_Soulez.pdf BibTex

Poster communications

2009

titre
Multi-Wavelength, Multi-Epoch Integral Field Spectrograph Extraction for the Nearby Supernova Factory
auteur
S. Bongard, Éric Thiébaut, E. Pecontal, G. Rigaudier, F. Soulez, C. Buton, N. Chotard, Y. Copin, E. Gangler, G. Smadja, C. Tao, P. Antilogus, S. Bailey, R. Pain, R. Pereira, P. Ripoche, C. Wu, G. Aldering, C. Aragon, M. Childress, S. Loken, P. Nugent, S. Perlmutter, K. Runge, H. Swift, R. C. Thomas, C. Baltay, J. Jerke, D. Rabinowitz, R. Scalzo
article
213th Meeting of the American Astronomical Society with HAD and HEAD, Jan 2009, Long Beach, CA, United States. 41, pp.464, 2009
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The SuperNova Integral Field Spectrograph (SNIFS), operated by the Nearby Supernova Factory since 20 .....
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Reports

2017

titre
Science cases for a visible interferometer
auteur
Philippe Stee, France Allard, Myriam Benisty, Lionel Bigot, Nicolas Blind, Henri Boffin, Marcelo Borges Fernandes, Alex Carciofi, Andrea Chiavassa, Orlagh Creevey, Pierre Cruzalèbes, Willem-Jan De Wit, Armando Domiciano De Souza, Martin Elvis, Nicolas Fabas, Daniel Faes, Alexandre Gallenne, Carlos Guerrero Pena, Michel Hillen, Sebastian Hoenig, Michael Ireland, Pierre Kervella, Makoto Kishimoto, Nadia Kostogryz, Stefan Kraus, Antoine Labeyrie, Jean-Baptiste Le Bouquin, Agnès Lèbre, Roxanne Ligi, Alessandro Marconi, Thomas Marsh, Anthony Meilland, Florentin Millour, John Monnier, Denis Mourard, Nicolas Nardetto, Keiichi Ohnaka, Claudia Paladini, Karine Perraut, Guy Perrin, Pascal Petit, Romain Petrov, Suvendu Rakshit, Gail Schaefer, Jean Schneider, Denis Shulyak, Michal Simon, Ferréol Soulez, Danny Steeghs, Isabelle Tallon-Bosc, Michel Tallon, Theo Ten Brummelaar, Éric Thiébaut, Frédéric Thévenin, Hans Van Winckel, Markus Wittkowski, Juan Zorec
article
[Research Report] Observatoire de la Côte d'Azur. 2017
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High spatial resolution is the key for the understanding various astrophysical phenomena. But even w .....
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https://arxiv.org/pdf/1703.02395 BibTex

Theses

2008

titre
Une approche problèmes inverses pour la reconstruction de données multi-dimensionnelles par méthodes d'optimisation.
auteur
Ferréol Soulez
article
Traitement du signal et de l'image. Université Jean Monnet - Saint-Etienne, 2008. Français
Resume_court
Ce travail utilise l'approche « problèmes inverses » pour la reconstruction dans deux domaines di .....
Accès au texte intégral et bibtex
https://tel.archives-ouvertes.fr/tel-00379735/file/these_ferreol.pdf BibTex
This page is clearly inspired by the one of Loïc Denis. I thank him for his css stylesheet.