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Pierre Chainais

As seen in: arXiv, IEEE
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Articles by Pierre Chainais

Quaternions in Signal and Image Processing: A comprehensive and objective overview

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By Sebastian Miron, Julien Flamant, Nicolas Le Bihan, Pierre Chainais
| IEEE
Quaternions are still largely misunderstood and often considered an “exotic” signal representation without much practical utility despite the fact that they have been around the signal and image processing community for more than 30 years now. The main aim of this article is to counter this misconception and to demystify the use of quaternion algebra for solving problems in signal and image processing.
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[2305.12149] Normalizing flow sampling with Langevin dynamics in the latent space

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By Nicolas Dobigeon, Pierre Chainais
| arXiv
[Submitted on 20 May 2023] Title:Normalizing flow sampling with Langevin dynamics in the latent space Download a PDF of the paper titled Normalizing flow sampling with Langevin dynamics in the latent space, by Florentin Coeurdoux and Nicolas Dobigeon and Pierre Chainais Download PDF Abstract: Normalizing flows (NF) use a continuous generator to map a simple latent (e.g. Gaussian) distribution, towards an empirical target distribution associated with a training data set.
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