I joined the group as postdoc in September 2021. Before that, I was a PhD student at ITAV, CNRS, Toulouse, France. I worked on computational microscopy. I did my PhD thesis under the supervision of Pierre Weiss and Thomas Mangeat. 

During my PhD thesis, I proposed methods to estimate/learn spatially varying blur operator in the context of microscopy. I first developped and analyzed a framework to estimate such operators in a computationally and mathematically efficient way. Then, I matematically studied blind inverse problems in a simplified framework of isolted spike observations. Finally, I proposed machine learning procedure to solve blind inverse problems, and in particular blind deblurring.

Research interests

I am interested in inverse problems and blind inverse problems for various imaging systems. I am working on developing machine learning algorithms to help solve practical problems, as in Cryo-EM or fluorescence microscopy. I am interested in numerical and theoretical aspects.

Publications

2021

Blind inverse problems with isolated spikes
and
arXiv preprint arXiv:2111.02093, 2021
@article{debarnot2021blind,
  title={Blind inverse problems with isolated spikes},
  author={Debarnot, Valentin and Weiss, Pierre},
  journal={arXiv preprint arXiv:2111.02093},
  year={2021}
}

2020

Learning low-dimensional models of microscopes
, , and
IEEE Transactions on Computational Imaging, 2020
@article{debarnot2020learning,
  title={Learning low-dimensional models of microscopes},
  author={Debarnot, Valentin and Escande, Paul and Mangeat, Thomas and Weiss, Pierre},
  journal={IEEE Transactions on Computational Imaging},
  year={2020},
  publisher={IEEE}
}

2019

A scalable estimator of sets of integral operators
, and
Inverse Problems, 2019
@article{debarnot2019scalable,
  title={A scalable estimator of sets of integral operators},
  author={Debarnot, Valentin and Escande, Paul and Weiss, Pierre},
  journal={Inverse Problems},
  volume={35},
  number={10},
  pages={105011},
  year={2019},
  publisher={IOP Publishing}
}
Multiview Attenuation Estimation and Correction
, and
Journal of Mathematical Imaging and Vision, 2019
@article{debarnot2019multiview,
  title={Multiview Attenuation Estimation and Correction},
  author={Debarnot, Valentin and Kahn, Jonas and Weiss, Pierre},
  journal={Journal of Mathematical Imaging and Vision},
  volume={61},
  number={6},
  pages={780--797},
  year={2019},
  publisher={Springer}
}