Laetitia Thirion

Laboratory

Supelec Onera Nus Dso Research Alliance

Website

Publications (124)

Conference poster 23/06/2025

Detection of Spruce Budworm with Sentinel-1 Time Series

Xavier Dupuis , Thierry Koleck , Frédéric Brigui , Laetitia Thirion

Communication at a conference 21/10/2024

SAR time series for under canopy detection

Régis Guinvarc , Laetitia Thirion

Article in a journal 08/02/2024

Identification of Maya ruins covered by jungle using Sentinel-1

Regis Guinvarc'h , Laetitia Thirion-Lefèvre , Laetitia Thirion

Communication at a conference 20/10/2023

Road Detection in a Forest Using Sentinel-1 and FBR Time-Series Speckle Filtering

Laetitia Thirion-Lefèvre , Laetitia Thirion

Article in a journal 01/08/2023

Detection of Forest Fires through Deep Unsupervised Learning Modeling of Sentinel-1 Time Series

Bertrand Le Saux , Regis Guinvarc'h , Laetitia Thirion-Lefèvre , Elise Colin , Laetitia Thirion

Chapter of the book 01/02/2023

Modeling radar backscatter from forests: a first step towards reversing

Elise Colin , Laetitia Thirion-Lefèvre , Laetitia Thirion

Communication at a conference 01/01/2023

Numerical schemes to retrieve permittivities from rotated double bounce signatures in polarimetric SAR images

Xavier Dupuis , Laetitia Thirion-Lefèvre , Laetitia Thirion

Article in a journal 01/01/2023

A Numerically Efficient Method for Predicting the Scattering Characteristics of Complex Moving Targets

Dihia Sidi Ahmed , Paola Russo , Graziano Cerri , Laetitia Thirion Lefevre , John Manfredi , Laetitia Thirion

Communication at a conference 01/01/2023

Simplified scheme to separately retrieve permittivities of surfaces of a dihedral structure using radar polarimetry

Xavier Dupuis , Laetitia Thirion-Lefèvre , Laetitia Thirion

Communication at a conference 01/01/2023

Towards the understanding of the C-Band temporal signature of boreal forest through physiology parameters retrieval from sentinel-1 time series and machine learning

Laetitia Thirion-Lefèvre , Elise Colin , Laetitia Thirion

Article in a journal 01/01/2023

Grad-SLAM: Explaining Convolutional Autoencoders' Latent Space of Satellite Image Time Series

Regis Guinvarc'h , Laetitia Thirion-Lefèvre , Elise Colin , Laetitia Thirion

Article in a journal 21/12/2022

FARMSAR: Fixing Agricultural Mislabels Using Sentinel-1 Time Series and Autoencoders

Regis Guinvarc'h , Laetitia Thirion-Lefèvre , Elise Colin , Laetitia Thirion

Communication at a conference 17/07/2022

A FIRST TEST ON PERMITTIVTY INVERSION OF A DOUBLE BOUNCE IN A SAR IMAGE

Xavier Dupuis , Laetitia Thirion-Lefèvre , Laetitia Thirion

Communication at a conference 01/07/2022

Temporal Stack Speckle and Target Filtering for Environmental Applications

Laetitia Thirion-Lefèvre , Laetitia Thirion

Conference poster 01/07/2022

Temporal Stack Speckle and Target Filtering for Environmental Applications

Laetitia Thirion-Lefèvre , Laetitia Thirion

Conference poster 01/05/2022

Detection of archaeological sites hidden by a forest canopy using Sentinel-1 time-series

Laetitia Thirion-Lefèvre , Laetitia Thirion

Communication at a conference 01/01/2022

Modeling of agricultural SAR Time Series using Convolutional Autoencoder for the extraction of harvesting practices of rice fields

Colin Koeniguer , Laetitia Thirion-Lefèvre , Laetitia Thirion

Article in a journal 06/08/2021

Beets or Cotton? Blind Extraction of Fine Agricultural Classes Using a Convolutional Autoencoder Applied to Temporal SAR Signatures

Laetitia Thirion-Lefèvre , Elise Colin Koeniguer , Laetitia Thirion

Communication at a conference 12/07/2021

Deep Temporal Convolutional Autoencoder for Unsupervised Representation Learning of Incoherent Polsar Time-Series

Laetitia Thirion-Lefèvre , Elise Koeniguer , Laetitia Thirion

Communication at a conference 11/07/2021

Use of Sentinel-1 Time-Series for Archaeological Structures Detection

John Manfredi , Laetitia Thirion-Lefèvre , Laetitia Thirion

Communication at a conference 11/07/2021

Characterization and Extraction of Roads Using Polarimetry Methods in L-Band SAR Images

Paillou Nathan , Laetitia Thirion-Lefèvre , Laetitia Thirion

Communication at a conference 29/03/2021

Double bounce mechanism and deterministic targets in SAR remote sensing

Laetitia Thirion-Lefèvre , Elise Colin-Koeniguer , Laetitia Thirion

Communication at a conference 17/02/2021

Monostatic Radar Cross Section Simulation of Small Unmanned Aerial Vehicles in UHF band

Dihia Sidi Ahmed , Laetitia Thirion-Lefèvre , Regis Guinvarch , John Manfredi , Paola Russo , Graziano Cerri , Laetitia Thirion

Article in a journal 26/01/2021

Measurements and Analysis of the Doppler Signature of a Human Moving within the Forest in UHF-Band

John Manfredi , Michel Menelle , Laetitia Thirion-Lefèvre , Jean-Philippe Ovarlez , Laetitia Thirion

Communication at a conference 26/09/2020

Interest of Temporal Methods over Spatial Methods in Order to Detect Small Targets

Paillou Nathan , Laetitia Thirion-Lefèvre , Laetitia Thirion

Communication at a conference 26/09/2020

Characterization of the walking activity within the forest by using a Doppler analysis in the UHF-BAND

John Manfredi , Michel Menelle , Laetitia Thirion-Lefèvre , Jean-Philippe Ovarlez , Laetitia Thirion

Article in a journal 01/01/2020

Detecting Ephemeral Objects in SAR Time-Series Using Frozen Background-Based Change Detection

Thibault Taillade , Laetitia Thirion-Lefèvre , Laetitia Thirion

Article in a journal 01/01/2020

The Combined Effect of Orientation Angle and Material on PolSAR Images of Urban Areas

Laetitia Thirion-Lefèvre , Elise Colin-Koeniguer , Laetitia Thirion

Communication at a conference 28/07/2019

Comparative Analysis of the Relative Polarimetric Radar Signature of Vegetation and Cities Districts

L. Thirion-Lefevre , R. Guinvarc'H , Elise Colin-Koeniguer , Laetitia Thirion

Communication at a conference 28/07/2019

L-band Polarimetric Change Detection on Sar Images: Fire Burn Scars in California

Thibault Taillade , Laetitia Thirion-Lefèvre , Laetitia Thirion