Publications

Methodology

Maximum entropy methods for texture synthesis: theory and practice

Recent years have seen the rise of convolutional neural network techniques in exemplar-based image synthesis. These methods often rely on the minimization of some variational formulation on the image space for which the minimizers are assumed to be…

Valentin de Bortoli, Agnès Desolneux, Alain Durmus, Bruno Galerne, Arthur Leclaire

SIAM Journal on Mathematics of Data Science - 2021

Engineering Sciences

A novel hybrid drone for multi-propose aerial transportation and its conceptual optimization based on surrogate approach

Abstract In recent years the Unmanned Aerial Vehicles (UAVs) are increasingly adopted in various applications of the aerial transportation, meanwhile both the two main classifications, the fixed wing and multi-rotors drones, are limited by their own…

Hao Yue, Hicham Medromi, Hua Ding, David Bassir

Journal of Physics: Conference Series - 2021

Engineering Sciences

A Refined Theory for Bending Vibratory Analysis of Thick Functionally Graded Beams

A refined beam theory that takes the thickness-stretching into account is presented in this study for the bending vibratory behavior analysis of thick functionally graded (FG) beams. In this theory, the number of unknowns is reduced to four instead…

Youssef Boutahar, Nadhir Lebaal, David Bassir

Mathematics - 2021

Mathematics

A novel hybrid drone for multi-propose aerial transportation and its conceptual optimization based on surrogate approach

Hao Yue, Hicham Medromi, Hua Ding, David Bassir

Journal of Physics: Conference Series - 2021

Neural and Evolutionary Computing

A CNN cloud detector for panchromatic satellite images

Cloud detection is a crucial step for automatic satellite image analysis. Some cloud detection methods exploit specially designed spectral bands, other base the detection on time series, or on the inter-band delay in push-broom satellites…

Mariano Rodríguez, Jérémy Anger, Carlo de Franchis, Charles Hessel, Gabriele Facciolo, Rafael Grompone von Gioi, Jean-Michel Morel

IGARSS 2021 - 2021 IEEE International Geoscience and Remote Sensing Symposium - 2021

Numerical Analysis

Compromise between precision and performance in high performance computing.

Floating-point numbers represent only a subset of real numbers. As such, floating-point arithmetic introduces approximations that can compound and have a significant impact on numerical simulations. We introduce a new way to estimate and localize…

Nestor Demeure

Probability

Piecewise Deterministic Markov Processes and their invariant measure

Piecewise Deterministic Markov Processes (PDMPs) are studied in a general framework. First, different constructions are proven to be equivalent. Second, we introduce a coupling between two PDMPs following the same differential flow which implies…

Alain Durmus, Arnaud Guillin, Pierre Monmarché

Annales de l'Institut Henri Poincaré (B) Probabilités et Statistiques - 2021

Microelectronics

Multicriteria optimization of 3D printed wing using PLA reinforced with carbon fiber

The purpose of this work is the optimal conception of a wing built using fused deposition modeling (FDM),

David Hicham Bassir, Yue Hao, Khaoula Abouzaid, Patrice Salzenstein

International Conference on Numerical Analysis and Applied Mathematics (ICNAAM) 2021 - 2021

Signal and Image processing

Video denoising by combining patch search and CNNs

Non-local patch based methods were until recently the state of the art for image denoising but are now outperformed by CNNs. In video denoising however, they are still competitive with CNNs, as they can effectively exploit the video temporal…

Axel Davy, Thibaud Ehret, Jean-Michel Morel, Pablo Arias, Gabriele Facciolo

Journal of Mathematical Imaging and Vision - 2021

Santé publique et épidémiologie

Computing the daily reproduction number of COVID-19 by inverting the renewal equation using a variational technique

Significance Based on a signal-processing approach, we propose a method to compute the reproduction number R t , the transmission potential of an epidemic over time. R t is estimated by minimizing a functional that enforces: 1) the ability to…

Luis Alvarez, Miguel Colom, Jean-David Morel, Jean-Michel Morel

Proceedings of the National Academy of Sciences of the United States of America - 2021