no code implementations • 13 Feb 2024 • Colin Decourt, Rufin VanRullen, Didier Salle, Thomas Oberlin
In recent years, driven by the need for safer and more autonomous transport systems, the automotive industry has shifted toward integrating a growing number of Advanced Driver Assistance Systems (ADAS).
no code implementations • 29 Nov 2023 • Maud Biquard, Marie Chabert, Thomas Oberlin
Regularization of inverse problems is of paramount importance in computational imaging.
1 code implementation • 21 Dec 2022 • Colin Decourt, Rufin VanRullen, Didier Salle, Thomas Oberlin
Exploiting the time information (e. g., multiple frames) has been shown to help to capture better the dynamics of objects and, therefore, the variation in the shape of objects.
1 code implementation • 2022 IEEE Intelligent Vehicles Symposium (IV) 2022 • Colin Decourt, Rufin VanRullen, Didier Salle, Thomas Oberlin
Due to the small number of raw data automotive radar datasets and the low resolution of such radar sensors, automotive radar object detection has been little explored with deep learning models in comparison to camera and lidar-based approaches.
2 code implementations • 28 Jun 2022 • Ondřej Mokrý, Paul Magron, Thomas Oberlin, Cédric Févotte
First, we treat the missing samples as latent variables, and derive two expectation-maximization algorithms for estimating the parameters of the model, depending on whether we formulate the problem in the time- or time-frequency domain.
no code implementations • 21 Jan 2021 • Thomas Oberlin, Mathieu Verm
We illustrate the interest of such a formulation by running experiments of inpainting, deblurring and super-resolution.
no code implementations • 1 Oct 2020 • Pierre-Hugo Vial, Paul Magron, Thomas Oberlin, Cédric Févotte
Therefore, we formulate PR as a new minimization problem involving Bregman divergences.
Sound
1 code implementation • ICML 2020 • Olivier Gouvert, Thomas Oberlin, Cédric Févotte
In particular, our algorithm preserves the scalability of PF and can be applied to huge sparse datasets.
1 code implementation • 4 Feb 2020 • Etienne Monier, Thomas Oberlin, Nathalie Brun, Xiaoyan Li, Marcel Tencé, Nicolas Dobigeon
Besides, among the methods proposed in the microscopy literature, some are fast but inaccurate while others provide accurate reconstruction but at the price of a high computation burden.
no code implementations • 26 Dec 2019 • Claire Guilloteau, Thomas Oberlin, Olivier Berné, Nicolas Dobigeon
Hyperspectral imaging has become a significant source of valuable data for astronomers over the past decades.
1 code implementation • 20 May 2019 • Olivier Gouvert, Thomas Oberlin, Cédric Févotte
Count data are often used in recommender systems: they are widespread (song play counts, product purchases, clicks on web pages) and can reveal user preference without any explicit rating from the user.
no code implementations • 30 Jul 2018 • Yanna Cruz Cavalcanti, Thomas Oberlin, Nicolas Dobigeon, Cédric Févotte, Simon Stute, Maria-Joao Ribeiro, Clovis Tauber
Factor analysis has proven to be a relevant tool for extracting tissue time-activity curves (TACs) in dynamic PET images, since it allows for an unsupervised analysis of the data.
no code implementations • 21 Jul 2018 • Vinicius Ferraris, Nicolas Dobigeon, Yanna Cavalcanti, Thomas Oberlin, Marie Chabert
This paper addresses the problem of unsupervisedly detecting changes between two observed images acquired by sensors of different modalities with possibly different resolutions.
no code implementations • 27 Feb 2018 • Étienne Monier, Thomas Oberlin, Nathalie Brun, Marcel Tencé, Marta de Frutos, Nicolas Dobigeon
Electron microscopy has shown to be a very powerful tool to map the chemical nature of samples at various scales down to atomic resolution.
no code implementations • 5 Jan 2018 • Olivier Gouvert, Thomas Oberlin, Cédric Févotte
We introduce negative binomial matrix factorization (NBMF), a matrix factorization technique specially designed for analyzing over-dispersed count data.
no code implementations • 19 Jul 2017 • Yanna Cruz Cavalcanti, Thomas Oberlin, Nicolas Dobigeon, Simon Stute, Maria Ribeiro, Clovis Tauber
Modeling the variability of the specific binding factor has a strong potential impact for dynamic PET image analysis.