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Post-doctoral researcher in Signal Processing in team SIGMA at CRIStAL, Lille

I am currently interested in the link between generalized time-frequency representations and Gaussian Analytic Functions. My post-doctoral project aims at evidencing new representations whose zeros connect to known point processes, such as the zeros of some Gaussian Analytic Function. For this purpose, I focus on an algebraic formulation of generalized time-frequency transforms. Further, I intend to benefits from a parallel with the quantum theory of coherent states. I am currently working on this project under supervision of Rémi Bardenet, and in collaboration with Alexandre Feller.

Spectrogram zeros

2017-2020: PhD student in Image Processing at the Laboratoire de Physique, ENS Lyon

I did my PhD thesis under the supervision of Patrice Abry and Nelly Pustelnik at the Laboratoire de Physique of the École Normale Supérieure de Lyon. I worked on texture segmentation based on fractal attributes, such as e.g. local regularity, designing convex functionals for simultaneous estimation and regularization of attributs maps.

Piecewise monofractal texture

Local estimate of local regularity

Denoised local regularity estimate

I teached mathematics, statisticial physics and signal processing.

Scientific areas of interest

I am interested in several domains such as convex analysis, image processing and wavelets:

  • Convex optimization
  • (Accelerated) Proximal algorithms
  • Wavelet transforms
  • Multifractal textures
  • Texture segmentation