Search Results for author: Bertrand Le Saux

Found 50 papers, 17 papers with code

A Semantic Segmentation-guided Approach for Ground-to-Aerial Image Matching

2 code implementations17 Apr 2024 Francesco Pro, Nikolaos Dionelis, Luca Maiano, Bertrand Le Saux, Irene Amerini

Nowadays the accurate geo-localization of ground-view images has an important role across domains as diverse as journalism, forensics analysis, transports, and Earth Observation.

Earth Observation Semantic Segmentation

Learning from Unlabelled Data with Transformers: Domain Adaptation for Semantic Segmentation of High Resolution Aerial Images

1 code implementation17 Apr 2024 Nikolaos Dionelis, Francesco Pro, Luca Maiano, Irene Amerini, Bertrand Le Saux

In this paper, we develop a new model for semantic segmentation of unlabelled images, the Non-annotated Earth Observation Semantic Segmentation (NEOS) model.

Domain Adaptation Earth Observation +2

A Hybrid MLP-Quantum approach in Graph Convolutional Neural Networks for Oceanic Nino Index (ONI) prediction

no code implementations29 Jan 2024 Francesco Mauro, Alessandro Sebastianelli, Bertrand Le Saux, Paolo Gamba, Silvia Liberata Ullo

This paper explores an innovative fusion of Quantum Computing (QC) and Artificial Intelligence (AI) through the development of a Hybrid Quantum Graph Convolutional Neural Network (HQGCNN), combining a Graph Convolutional Neural Network (GCNN) with a Quantum Multilayer Perceptron (MLP).

PhilEO Bench: Evaluating Geo-Spatial Foundation Models

1 code implementation9 Jan 2024 Casper Fibaek, Luke Camilleri, Andreas Luyts, Nikolaos Dionelis, Bertrand Le Saux

Massive amounts of unlabelled data are captured by Earth Observation (EO) satellites, with the Sentinel-2 constellation generating 1. 6 TB of data daily.

Density Estimation Earth Observation +3

The curse of language biases in remote sensing VQA: the role of spatial attributes, language diversity, and the need for clear evaluation

no code implementations28 Nov 2023 Christel Chappuis, Eliot Walt, Vincent Mendez, Sylvain Lobry, Bertrand Le Saux, Devis Tuia

While new, improved and less-biased datasets appear as a necessity for the development of the promising field of RSVQA, we demonstrate that more informed, relative evaluation metrics remain much needed to transparently communicate results of future RSVQA methods.

Question Answering Question Generation +2

Estimating optical vegetation indices with Sentinel-1 SAR data and AutoML

no code implementations13 Nov 2023 Daniel Paluba, Bertrand Le Saux, Francesco Sarti, Přemysl Stych

Time series of four VIs (LAI, FAPAR, EVI and NDVI) were estimated using multitemporal Sentinel-1 SAR and ancillary data.

AutoML Time Series +1

Diffusion Models for Earth Observation Use-cases: from cloud removal to urban change detection

no code implementations10 Nov 2023 Fulvio Sanguigni, Mikolaj Czerkawski, Lorenzo Papa, Irene Amerini, Bertrand Le Saux

The advancements in the state of the art of generative Artificial Intelligence (AI) brought by diffusion models can be highly beneficial in novel contexts involving Earth observation data.

Change Detection Cloud Removal +1

Approximately Equivariant Quantum Neural Network for $p4m$ Group Symmetries in Images

no code implementations3 Oct 2023 Su Yeon Chang, Michele Grossi, Bertrand Le Saux, Sofia Vallecorsa

Quantum Neural Networks (QNNs) are suggested as one of the quantum algorithms which can be efficiently simulated with a low depth on near-term quantum hardware in the presence of noises.

Image Classification Inductive Bias +1

Optimizing Kernel-Target Alignment for cloud detection in multispectral satellite images

no code implementations26 Jun 2023 Artur Miroszewski, Jakub Mielczarek, Filip Szczepanek, Grzegorz Czelusta, Bartosz Grabowski, Bertrand Le Saux, Jakub Nalepa

The optimization of Kernel-Target Alignment (TA) has been recently proposed as a way to reduce the number of hardware resources in quantum classifiers.

Cloud Detection

Squeezing nnU-Nets with Knowledge Distillation for On-Board Cloud Detection

no code implementations16 Jun 2023 Bartosz Grabowski, Maciej Ziaja, Michal Kawulok, Piotr Bosowski, Nicolas Longépé, Bertrand Le Saux, Jakub Nalepa

Cloud detection is a pivotal satellite image pre-processing step that can be performed both on the ground and on board a satellite to tag useful images.

Cloud Detection Knowledge Distillation +3

Self-Configuring nnU-Nets Detect Clouds in Satellite Images

no code implementations24 Oct 2022 Bartosz Grabowski, Maciej Ziaja, Michal Kawulok, Nicolas Longépé, Bertrand Le Saux, Jakub Nalepa

Cloud detection is a pivotal satellite image pre-processing step that can be performed both on the ground and on board a satellite to tag useful images.

Cloud Detection Meta-Learning +2

Graph Neural Networks Extract High-Resolution Cultivated Land Maps from Sentinel-2 Image Series

no code implementations3 Aug 2022 Lukasz Tulczyjew, Michal Kawulok, Nicolas Longépé, Bertrand Le Saux, Jakub Nalepa

Maintaining farm sustainability through optimizing the agricultural management practices helps build more planet-friendly environment.

8k Management

Rapid training of quantum recurrent neural networks

1 code implementation1 Jul 2022 Michał Siemaszko, Adam Buraczewski, Bertrand Le Saux, Magdalena Stobińska

Here, we propose to extend the concept of RRNs by including continuous-variable quantum resources in it, and to use a quantum-enhanced RNN to overcome these obstacles.

Time Series Time Series Prediction

Self-supervised learning -- A way to minimize time and effort for precision agriculture?

1 code implementation5 Apr 2022 Michael L. Marszalek, Bertrand Le Saux, Pierre-Philippe Mathieu, Artur Nowakowski, Daniel Springer

Machine learning, satellites or local sensors are key factors for a sustainable and resource-saving optimisation of agriculture and proved its values for the management of agricultural land.

Management Self-Supervised Learning

Beyond Ansätze: Learning Quantum Circuits as Unitary Operators

no code implementations1 Mar 2022 Bálint Máté, Bertrand Le Saux, Maxwell Henderson

This paper explores the advantages of optimizing quantum circuits on $N$ wires as operators in the unitary group $U(2^N)$.

DIAL: Deep Interactive and Active Learning for Semantic Segmentation in Remote Sensing

1 code implementation4 Jan 2022 Gaston Lenczner, Adrien Chan-Hon-Tong, Bertrand Le Saux, Nicola Luminari, Guy Le Besnerais

We propose in this article to build up a collaboration between a deep neural network and a human in the loop to swiftly obtain accurate segmentation maps of remote sensing images.

Active Learning Semantic Segmentation

Weakly-supervised continual learning for class-incremental segmentation

1 code implementation4 Jan 2022 Gaston Lenczner, Adrien Chan-Hon-Tong, Nicola Luminari, Bertrand Le Saux

Transfer learning is a powerful way to adapt existing deep learning models to new emerging use-cases in remote sensing.

Continual Learning Pseudo Label +2

Weakly Supervised Change Detection Using Guided Anisotropic Difusion

no code implementations31 Dec 2021 Rodrigo Caye Daudt, Bertrand Le Saux, Alexandre Boulch, Yann Gousseau

Large scale datasets created from crowdsourced labels or openly available data have become crucial to provide training data for large scale learning algorithms.

Change Detection Semantic Segmentation +1

How to find a good image-text embedding for remote sensing visual question answering?

no code implementations24 Sep 2021 Christel Chappuis, Sylvain Lobry, Benjamin Kellenberger, Bertrand Le Saux, Devis Tuia

Visual question answering (VQA) has recently been introduced to remote sensing to make information extraction from overhead imagery more accessible to everyone.

Question Answering Visual Question Answering

On Circuit-based Hybrid Quantum Neural Networks for Remote Sensing Imagery Classification

1 code implementation20 Sep 2021 Alessandro Sebastianelli, Daniela A. Zaidenberg, Dario Spiller, Bertrand Le Saux, Silvia Liberata Ullo

This article aims to investigate how circuit-based hybrid Quantum Convolutional Neural Networks (QCNNs) can be successfully employed as image classifiers in the context of remote sensing.

Classification Earth Observation

Pix2Point: Learning Outdoor 3D Using Sparse Point Clouds and Optimal Transport

no code implementations30 Jul 2021 Rémy Leroy, Pauline Trouvé-Peloux, Frédéric Champagnat, Bertrand Le Saux, Marcela Carvalho

The 3D information was usually obtained from images by stereo-photogrammetry, but deep learning has recently provided us with excellent results for monocular depth estimation.

Monocular Depth Estimation

Advantages and Bottlenecks of Quantum Machine Learning for Remote Sensing

1 code implementation26 Jan 2021 Daniela A. Zaidenberg, Alessandro Sebastianelli, Dario Spiller, Bertrand Le Saux, Silvia Liberata Ullo

This concept paper aims to provide a brief outline of quantum computers, explore existing methods of quantum image classification techniques, so focusing on remote sensing applications, and discuss the bottlenecks of performing these algorithms on currently available open source platforms.

BIG-bench Machine Learning Image Classification +1

Street to Cloud: Improving Flood Maps With Crowdsourcing and Semantic Segmentation

no code implementations5 Nov 2020 Veda Sunkara, Matthew Purri, Bertrand Le Saux, Jennifer Adams

To address the mounting destruction caused by floods in climate-vulnerable regions, we propose Street to Cloud, a machine learning pipeline for incorporating crowdsourced ground truth data into the segmentation of satellite imagery of floods.

BIG-bench Machine Learning Semantic Segmentation

DISIR: Deep Image Segmentation with Interactive Refinement

1 code implementation31 Mar 2020 Gaston Lenczner, Bertrand Le Saux, Nicola Luminari, Adrien Chan Hon Tong, Guy Le Besnerais

Starting from an initial output based on the image only, our network then interactively refines this segmentation map using a concatenation of the image and user annotations.

Image Segmentation Interactive Segmentation +3

Multi-Task Learning of Height and Semantics from Aerial Images

1 code implementation18 Nov 2019 Marcela Carvalho, Bertrand Le Saux, Pauline Trouvé-Peloux, Frédéric Champagnat, Andrés Almansa

Aerial or satellite imagery is a great source for land surface analysis, which might yield land use maps or elevation models.

Multi-Task Learning

Technical Report: Co-learning of geometry and semantics for online 3D mapping

no code implementations4 Nov 2019 Marcela Carvalho, Maxime Ferrera, Alexandre Boulch, Julien Moras, Bertrand Le Saux, Pauline Trouvé-Peloux

This paper is a technical report about our submission for the ECCV 2018 3DRMS Workshop Challenge on Semantic 3D Reconstruction \cite{Tylecek2018rms}.

3D Reconstruction Autonomous Navigation +2

Guided Anisotropic Diffusion and Iterative Learning for Weakly Supervised Change Detection

no code implementations17 Apr 2019 Rodrigo Caye Daudt, Bertrand Le Saux, Alexandre Boulch, Yann Gousseau

Large scale datasets created from user labels or openly available data have become crucial to provide training data for large scale learning algorithms.

Change Detection Semantic Segmentation +1

Multitask Learning for Large-scale Semantic Change Detection

no code implementations19 Oct 2018 Rodrigo Caye Daudt, Bertrand Le Saux, Alexandre Boulch, Yann Gousseau

In this paper we present the first large scale high resolution semantic change detection (HRSCD) dataset, which enables the usage of deep learning methods for semantic change detection.

Change Detection Earth Observation

Fully Convolutional Siamese Networks for Change Detection

4 code implementations19 Oct 2018 Rodrigo Caye Daudt, Bertrand Le Saux, Alexandre Boulch

This paper presents three fully convolutional neural network architectures which perform change detection using a pair of coregistered images.

Change Detection Change detection for remote sensing images +1

Generative Adversarial Networks for Realistic Synthesis of Hyperspectral Samples

no code implementations7 Jun 2018 Nicolas Audebert, Bertrand Le Saux, Sébastien Lefèvre

This work addresses the scarcity of annotated hyperspectral data required to train deep neural networks.

Data Augmentation

Beyond RGB: Very High Resolution Urban Remote Sensing With Multimodal Deep Networks

1 code implementation23 Nov 2017 Nicolas Audebert, Bertrand Le Saux, Sébastien Lefèvre

In this work, we investigate various methods to deal with semantic labeling of very high resolution multi-modal remote sensing data.

Fusion of Heterogeneous Data in Convolutional Networks for Urban Semantic Labeling (Invited Paper)

no code implementations20 Jan 2017 Nicolas Audebert, Bertrand Le Saux, Sébastien Lefèvre

We introduce residual correction as a way to learn how to fuse predictions coming out of a dual stream architecture.

On the usability of deep networks for object-based image analysis

no code implementations22 Sep 2016 Nicolas Audebert, Bertrand Le Saux, Sébastien Lefèvre

In this work, we show how to use such deep networks to detect, segment and classify different varieties of wheeled vehicles in aerial images from the ISPRS Potsdam dataset.

Earth Observation General Classification +4

How Useful is Region-based Classification of Remote Sensing Images in a Deep Learning Framework?

no code implementations22 Sep 2016 Nicolas Audebert, Bertrand Le Saux, Sébastien Lefèvre

In this paper, we investigate the impact of segmentation algorithms as a preprocessing step for classification of remote sensing images in a deep learning framework.

Classification General Classification +2

Semantic Segmentation of Earth Observation Data Using Multimodal and Multi-scale Deep Networks

no code implementations22 Sep 2016 Nicolas Audebert, Bertrand Le Saux, Sébastien Lefèvre

This work investigates the use of deep fully convolutional neural networks (DFCNN) for pixel-wise scene labeling of Earth Observation images.

Earth Observation Scene Labeling +1

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