A Multiscale tour of Harmonic Analysis and Machine Learning - To Celebrate Stéphane Mallat's 60th birthday

Collection A Multiscale tour of Harmonic Analysis and Machine Learning - To Celebrate Stéphane Mallat's 60th birthday

Organisateur(s) Joan Bruna, Gabriel Peyré
Date(s) 19/04/2023 - 21/04/2023
URL associée https://indico.math.cnrs.fr/event/9438/
00:00:00 / 00:00:00
21 24

Advanced computational imaging: "Chassez le naturel, il revient au galop"

De Michael Unser

Deep neural networks have a remarkable ability to improve the quality of reconstruction of biomedical images. While the results reported so far are extremely encouraging, serious reservations have been voiced pertaining to the stability of these tools and the extent to which we can trust their output. After providing an overview of the state-of-the-art, we describe iterative reconstruction schemes that rely on stable Lipschitz-constrained networks with learnable activation functions. We then identify some not-so-deep neuronal architectures that yield near state-of-the-art performance, while offering theoretical guarantees (convergence, consistency with the measurements, stability) that protect them against hallucinations. We also display a configuration that has a variational interpretation and whose components (filters and nonlinearities) are reminiscent of the wavelets and multiresolution decompositions introduced by Stéphane Mallat.

Informations sur la vidéo

  • Date de captation 21/04/2023
  • Date de publication 26/04/2023
  • Institut IHES
  • Langue Anglais
  • Audience Chercheurs
  • Format MP4

Dernières questions liées sur MathOverflow

Pour poser une question, votre compte Carmin.tv doit être connecté à mathoverflow

Poser une question sur MathOverflow




Inscrivez-vous

  • Mettez des vidéos en favori
  • Ajoutez des vidéos à regarder plus tard &
    conservez votre historique de consultation
  • Commentez avec la communauté
    scientifique
  • Recevez des notifications de mise à jour
    de vos sujets favoris
Donner son avis