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Research Output

2020

A forward-backward algorithm for reweighted procedures: Application to radio-astronomical imaging

Repetti, A. & Wiaux, Y., 9 Apr 2020, 2020 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). IEEE, p. 1434-1438 5 p. (IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
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44 Downloads (Pure)

Building firmly nonexpansive convolutional neural networks

Terris, M., Repetti, A., Pesquet, J-C. & Wiaux, Y., 14 May 2020, ICASSP 2020 - IEEE International Conference on Acoustics, Speech and Signal Processing. IEEE, p. 8658-8662 5 p. (IEEE International Conference on Acoustics, Speech and Signal Processing).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
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127 Downloads (Pure)

Greedy Approximate Projection for Magnetic Resonance Fingerprinting with Partial Volumes

Duarte, R., Repetti, A., Gómez, P. A., Davies, M. & Wiaux, Y., Mar 2020, In : Inverse Problems. 36, 3, 035015.

Research output: Contribution to journalArticle

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21 Downloads (Pure)

Parallel faceted imaging in radio interferometry via proximal splitting (Faceted HyperSARA): when precision meets scalability

Thouvenin, P-A., Abdulaziz, A., Jiang, M., Dabbech, A., Repetti, A., Jackson, A., Thiran, J-P. & Wiaux, Y., Jan 2020, (Submitted) In : Monthly Notices of the Royal Astronomical Society. 25 p.

Research output: Contribution to journalArticle

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15 Downloads (Pure)
Open Access
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4 Downloads (Pure)
2019

A faceted prior for scalable wideband computational imaging

Thouvenin, P-A., Abdulaziz, A., Jiang, M., Repetti, A. & Wiaux, Y., 2 Jul 2019.

Research output: Contribution to conferenceAbstract

Open Access
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29 Downloads (Pure)

A Faceted Prior for Scalable Wideband Imaging: Application to Radio Astronomy

Thouvenin, P-A., Abdulaziz, A., Jiang, M., Repetti, A., Dabbech, A. & Wiaux, Y., 16 Dec 2019.

Research output: Contribution to conferencePaper

Open Access
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21 Downloads (Pure)

Computational time-of-flight diffuse optical tomography

Lyons, A., Boccolini, A., Tonolini, F., Repetti, A., Henderson, R., Wiaux, Y. & Faccio, D. F. A., Aug 2019, In : Nature Photonics. 13, 8, p. 575-579 5 p.

Research output: Contribution to journalArticle

Open Access

Deep Post-Processing for Sparse Image Deconvolution

Terris, M., Abdulaziz, A., Dabbech, A., Jiang, M., Repetti, A., Pesquet, J-C. & Wiaux, Y., 1 Jul 2019. 2 p.

Research output: Contribution to conferenceAbstract

Open Access
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68 Downloads (Pure)

Fast Spatially Coherent Fiber Orientation Estimation in Diffusion MRI from kq-Space Sampling

Pesce, M., Repetti, A. & Wiaux, Y., 16 Sep 2019, (Accepted/In press). 5 p.

Research output: Contribution to conferencePaper

Open Access
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13 Downloads (Pure)

Hyperspectral Uncertainty Quantification by Optimization

Abdulaziz, A., Repetti, A. & Wiaux, Y., 1 Jul 2019, SPARS 2019. 2 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
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8 Downloads (Pure)
Open Access
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21 Downloads (Pure)

Self-calibration for Magnetic Resonance Fingerprinting

Duarte Coello, R. D. J., Repetti, A. & Wiaux, Y., Feb 2019. 1 p.

Research output: Contribution to conferencePaper

Open Access
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34 Downloads (Pure)

Self Direction-Dependent Calibration For Wideband Radio-Interferometric Imaging

Dabbech, A., Repetti, A. & Wiaux, Y., Feb 2019. 1 p.

Research output: Contribution to conferencePaper

Open Access
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30 Downloads (Pure)

Uncertainty Quantification in Astro-Imaging by Optimisation

Repetti, A., Pereyra, M. A. & Wiaux, Y., Feb 2019. 1 p.

Research output: Contribution to conferencePaper

Open Access
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29 Downloads (Pure)
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2018

Diffuse time-of-flight imaging with a single-photon camera

Lyons, A., Boccolini, A., Tonolini, F., Repetti, A., Chen, Z., Leach, J., Henderson, R., Wiaux, Y. & Faccio, D., 2018, Computational Optical Sensing and Imaging 2018. Optical Society of America, CM2E.6

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Facet-Based Regularization for Scalable Radio-Interferometric Imaging

Naghibzadeh, S., Repetti, A., van der Veen, A-J. & Wiaux, Y., 18 May 2018, (Accepted/In press) EUSIPCO 2018. IEEE

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
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12 Downloads (Pure)

Fast kq-Space Sampling with Motion-Induced Phase in Diffusion MRI

Pesce, M., Repetti, A. & Wiaux, Y., 30 Aug 2018, 2018 IEEE 10th Sensor Array and Multichannel Signal Processing Workshop (SAM). IEEE, p. 420-424 5 p. (Sensor Array and Multichannel Signal Processing Workshop (SAM)).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
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15 Downloads (Pure)

Scalable Algorithm for Polarization Constrained Sparse Interferometric Stokes Imaging

Birdi, J., Repetti, A. & Wiaux, Y., 30 Aug 2018, 2018 IEEE 10th Sensor Array and Multichannel Signal Processing Workshop (SAM). IEEE, p. 465-469 5 p. (Sensor Array and Multichannel Signal Processing Workshop (SAM)).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
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26 Downloads (Pure)

Sparse interferometric Stokes imaging under polarization constraint (Polarized SARA)

Birdi, J., Repetti, A. & Wiaux, Y., 21 Aug 2018, In : Monthly Notices of the Royal Astronomical Society. 478, 4, p. 4442-4463 22 p.

Research output: Contribution to journalArticle

Open Access
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25 Downloads (Pure)

Time-Regularized Blind Deconvolution Approach for Radio Interferometry

Thouvenin, P-A., Repetti, A., Dabbech, A. & Wiaux, Y., 2018, 10th IEEE Sensor Array and Multichannel Signal Processing Workshop (SAM 2018). IEEE, p. 475-479 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
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18 Downloads (Pure)

Uncertainty Quantification in Imaging: When Convex Optimization Meets Bayesian Analysis

Repetti, A., Pereyra, M. A. & Wiaux, Y., 18 May 2018, (Accepted/In press) EUSIPCO 2018. IEEE, 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
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4 Downloads (Pure)
2017

A non-convex perspective on calibration and imaging in radio interferometry

Repetti, A. & Wiaux, Y., 24 Aug 2017, Wavelets and Sparsity XVII. SPIE, 13 p. 103941W. (Proceedings of SPIE; vol. 10394).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
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1 Downloads (Pure)

A regularized tri-linear approach for optical interferometric imaging

Birdi, J., Repetti, A. & Wiaux, Y., 11 Jun 2017, In : Monthly Notices of the Royal Astronomical Society. 468, 1, p. 1142–1155 14 p.

Research output: Contribution to journalArticle

Open Access
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22 Downloads (Pure)

Joint imaging and DDEs calibration for radio interferometry

Repetti, A., Birdi, J. & Wiaux, Y., 30 Jan 2017, BASP Frontiers Workshop 2017. 1 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
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51 Downloads (Pure)

Non-convex blind deconvolution approach for sparse radio-interferometric imaging

Repetti, A., Birdi, J. & Wiaux, Y., 5 Jun 2017, 6th Signal Processing with Adaptive Sparse Structured Representations workshop 2017. p. 1-2 2 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
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14 Downloads (Pure)
Open Access
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33 Downloads (Pure)

Sparsity regularized optical interferometric imaging

Birdi, J., Repetti, A. & Wiaux, Y., 2017, Proceedings of SPARS 2017. p. 1-2 2 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
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21 Downloads (Pure)
2016

A block coordinate variable metric forward–backward algorithm

Chouzenoux, E., Pesquet, J-C. & Repetti, A., 10 Feb 2016, In : Journal of Global Optimization. p. 1-29 29 p.

Research output: Contribution to journalArticle

Scalable splitting algorithms for big-data interferometric imaging in the SKA era

Onose, A., Carrillo, R. E., Repetti, A., McEwen, J. D., Thiran, J-P., Pesquet, J-C. & Wiaux, Y., 11 Nov 2016, In : Monthly Notices of the Royal Astronomical Society. 462, 4, p. 4314-4335 22 p.

Research output: Contribution to journalArticle

Open Access
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52 Downloads (Pure)
2015

A Class of Randomized Primal-Dual Algorithms for Distributed Optimization

Pesquet, J-C. & Repetti, A., Dec 2015, In : Journal of Nonlinear and Convex Analysis. 16, 12, p. 2453-2490 38 p.

Research output: Contribution to journalArticle

Open Access

A Nonconvex Regularized Approach for Phase Retrieval

Repetti, A., Chouzenoux, E. & Pesquet, J-C., 29 Jan 2015, 2014 IEEE International Conference on Image Processing (ICIP). IEEE, p. 1753-1757 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

A parallel block-coordinate approach for primal-dual splitting with arbitrary random block selection

Repetti, A., Chouzenoux, E. & Pesquet, J-C., 28 Dec 2015, 2015 23rd European Signal Processing Conference (EUSIPCO). IEEE, p. 235-239 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

A random block-coordinate primal-dual proximal algorithm with application to 3D mesh denoising

Repetti, A., Chouzenoux, E. & Pesquet, J-C., 6 Aug 2015, 2015 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). IEEE, p. 3561-3565 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Euclid in a Taxicab: Sparse Blind Deconvolution with Smoothed ℓ1/ℓ2 Regularization

Repetti, A., Pham, M. Q., Duval, L., Chouzenoux, E. & Pesquet, J-C., May 2015, In : IEEE Signal Processing Letters. 22, 5, p. 539-543 5 p.

Research output: Contribution to journalArticle

Proximal Operator of Quotient Functions with Application to a Feasibility Problem in Query Optimization

Moerkotte, G., Montag, M., Repetti, A. & Steidl, G., Sep 2015, In : Journal of Computational and Applied Mathematics. 285, C, p. 243-255 13 p.

Research output: Contribution to journalArticle

Proximal primal-dual optimization methods

Repetti, A., Chouzenoux, E. & Pesquet, J-C., Jan 2015, Proceedings of international BASP Frontiers workshop. BASP, p. 25 1 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Un petit tutoriel sur les méthodes primales-duales pour l'optimisation convexe

Translated title of the contribution: A small tutorial on primal-dual methods for convex optimisationRepetti, A., Chouzenoux, E. & Pesquet, J-C., Sep 2015.

Research output: Contribution to conferencePaper

Open Access
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15 Downloads (Pure)
2014

A preconditioned Forward-Backward approach with application to large-scale nonconvex spectral unmixing problems

Repetti, A., Chouzenoux, E. & Pesquet, J-C., 2014, 39th IEEE International Conference on Acoustics, Speech, and Signal Processing.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Variable Metric Forward–Backward Algorithm for Minimizing the Sum of a Differentiable Function and a Convex Function

Chouzenoux, E., Pesquet, J-C. & Repetti, A., Jul 2014, In : Journal of Optimization Theory and Applications. 162, 1, p. 107–132 26 p.

Research output: Contribution to journalArticle

2013

Reconstruction d'image en présence de bruit gaussien dépendant par un algorithme Explicite-Implicite à métrique variable

Translated title of the contribution: Image reconstruction in presence of signal-dependent Gaussian noise using a variable-metric forward-backward algorithmRepetti, A., Chouzenoux, E. & Pesquet, J-C., Sep 2013.

Research output: Contribution to conferencePaper

2012

A Penalized Weighted Least Squares Approach for Restoring Data Corrupted with Signal-Dependent Noise

Repetti, A., Chouzenoux, E. & Pesquet, J-C., Aug 2012, 20th European Signal Processing Conference: EUSIPCO 2012. p. 1553-1557

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access