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Publications

Affichage des publications 401 à 410 sur 1098 au total

Image Processing

On The Role of Alias and Band-Shift for Sentinel-2 Super-Resolution

In this work, we study the problem of single-image superresolution (SISR) of Sentinel-2 imagery. We show that thanks to its unique sensor specification, namely the inter-band shift and alias, that deep-learning methods are able to recover fine…

Ngoc Long Nguyen, Jérémy Anger, Lara Raad, Bruno Galerne, Gabriele Facciolo

2023 International Geoscience and Remote Sensing Symposium (IGARSS 2023) -

Image Processing

Handheld Burst Super-Resolution Meets Multi-Exposure Satellite Imagery

Image resolution is an important criterion for many applications based on satellite imagery. In this work, we adapt a state-of-the-art kernel regression technique for smartphone camera burst super-resolution to satellites. This technique leverages…

Jamy Lafenetre, Ngoc Long Nguyen, Gabriele Facciolo, Thomas Eboli

IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) Workshops -

Image Processing

L1BSR: Exploiting Detector Overlap for Self-Supervised Single-Image Super-Resolution of Sentinel-2 L1B Imagery

High-resolution satellite imagery is a key element for many Earth monitoring applications. Satellites such as Sentinel-2 feature characteristics that are favorable for super-resolution algorithms such as aliasing and band-misalignment. Unfortunately…

Ngoc Long Nguyen, Jérémy Anger, Axel Davy, Pablo Arias, Gabriele Facciolo

IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) Workshops -

Computer Vision and Pattern Recognition

Demo system of the Image Processing On Line (IPOL) journal

Miguel Colom, Matías Abal, Jérémy Anger, José Arrecio, Martín Arévalo, Carlos Escobar, Vincent Firmin, Frédéric Glorieux, Stéphane Gratias, Karl Krissian, Nicolas Limare, Héctor Macías, Alexis Mongin, Nelson Monzón, Jyotsna Rajan

Machine Learning

Riemannian Locally Linear Embedding with Application to Kendall Shape Spaces

Locally Linear Embedding is a dimensionality reduction method which relies on the conservation of barycentric alignments of neighbour points. It has been designed to learn the intrinsic structure of a set of points of a Euclidean space lying close…

Elodie Maignant, Alain Trouvé, Xavier Pennec

GSI 2023: Geometric Science of Information -

Numerical Analysis

A limiting model for a low Reynolds number swimmer with N passive elastic arms

We consider a low Reynolds number artificial swimmer that consists of an active arm followed by N passive springs separated by spheres. This setup generalizes an approach proposed in Montino and DeSimone, Eur. Phys. J. E, vol. 38, 2015. We further…

François Alouges, Aline Lefebvre-Lepot, Jessie Levillain

Mathematics in Engineering -

Numerical Analysis

Harmonic analysis on directed graphs and applications: From Fourier analysis to wavelets

We introduce a novel harmonic analysis for functions defined on the vertices of a strongly connected directed graph (digraph) of which the random walk operator is the cornerstone. As a first step, we consider the set of eigenvectors of the random…

Harry Sevi, Gabriel Rilling, Pierre Borgnat

Applied and Computational Harmonic Analysis -

Statistics

Optimal transport between GMM for multiscale texture synthesis

Using optimal transport in image processing tasks has become very popular. However, it still faces difficult computational issues when dealing with high-dimensional distributions. We propose here to use the recently introduced GMM-OT formulation,…

Julie Delon, Agnès Desolneux, Laurent Facq, Arthur Leclaire

International Conference on Scale Space and Variational Methods in Computer Vision (SSVM) -

Machine Learning

Towards Scalable Adaptive Learning with Graph Neural Networks and Reinforcement Learning

Adaptive learning is an area of educational technology that consists in delivering personalized learning experiences to address the unique needs of each learner. An important subfield of adaptive learning is learning path personalization: it aims at…

Jean Vassoyan, Jill-Jênn Vie, Pirmin Lemberger

EDM 2023 - 16th International Conference on Educational Data Mining -