Samy LABSIR

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Présentation

Samy Labsir is a associate professor at IPSA Toulouse in data science and statistics. A the same time, he carries out research works in statistical signal processing within the laboratory TéSA. He obtained its PhD Degree at University of Bordeaux (France), IMS laboratory, in the Signal&Image group with collaboration of CEA-CESTA, in December 2020. The title is "Méthodes statistiques fondées sur les groupes de Lie pour le suivi d'un amas de débris spatiaux". and was supervised by Audrey Giremus (Full professor, Bordeaux University) and Brice Yver (Engineer, CEA-CESTA). The associated manuscript is disponible here and the presentation here. From October 2020 to November 2022, he was a post-doctoral research assistant at ISAE-SUPAERO (Toulouse, France) in DEOS department, NAVIRRES research group under the supervision of Gael Pages (Researcher, ISAE-SUPAERO) and Eric Chaumette (Full professor, ISAE-SUPAERO) . Its research is focused on filtering, estimation and machine learning methods for statistical signal processing. He works on statistical (non)-bayesian methods which use the non-Euclidean properties (Lie groups and Riemannian manifolds) of both unknown parameters and observations. He also investigates on the development of (non)-Bayesian error bound for parameters evolved on (non)-Euclidean space (Lie groups).
Its research works have mainly been built for three applications:

  1. radar target tracking : filtering and error bound on Lie groups for parameters estimated by a radar system,
  2. computer vision : SLAM filtering on Lie groups from monocular camera measurements, clustering on Lie groups
  3. GNSS navigation : statistical studies of GNSS loop tracking, error bound on Lie groups for RTK positioning.


Compétences

Estimation on Lie groups GNSS Radar Computer vision Statistical signal processing Machine learning

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Publications

Image document

Cramér-Rao Bound for Lie Group Parameter Estimation With Euclidean Observations and Unknown Covariance Matrix

Samy Labsir , Sara El Bouch , Alexandre Renaux , Jordi Vilà-Valls , Eric Chaumette
IEEE Transactions on Signal Processing, 2025, 73, pp.130-141. ⟨10.1109/TSP.2024.3445606⟩
Article dans une revue hal-04895558 v1

Cramér-Rao Bound for Lie Group Parameter Estimation with Euclidean Observations and Unknown Covariance Matrix

Samy Labsir , Sara El Bouch , Alexandre Renaux , Jordi Vilà-Valls , Eric Chaumette
IEEE Transactions on Signal Processing, 2024, pp.1-12. ⟨10.1109/TSP.2024.3445606⟩
Article dans une revue hal-04850382 v1
Image document

Barankin, McAulay–Seidman and Cramér–Rao bounds on matrix Lie groups

Samy Labsir , Alexandre Renaux , Jordi Vilà-Valls , Eric Chaumette
Automatica, 2023, 156, pp.111199. ⟨10.1016/j.automatica.2023.111199⟩
Article dans une revue hal-04172575 v2

An intrinsic Bayesian bound for estimators on the Lie groups SO(3) and SE(3)

Samy Labsir , Audrey Giremus , B. Yver , Thomas Benoudiba-Campanini
Signal Processing, 2023, 214, pp.109232. ⟨10.1016/j.sigpro.2023.109232⟩
Article dans une revue hal-04352851 v1
Image document

Lie Group Modelling for an EKF-Based Monocular SLAM Algorithm

Samy Labsir , Gaël Pagès , Damien Vivet
Remote Sensing, 2022, 14 (3), pp.571. ⟨10.3390/rs14030571⟩
Article dans une revue hal-03549470 v1

Joint shape and centroid position tracking of a cluster of space debris by filtering on Lie groups

S. Labsir , A. Giremus , B. Yver , T. Benoudiba–campanini
Signal Processing, 2021, 183, pp.108027. ⟨10.1016/j.sigpro.2021.108027⟩
Article dans une revue hal-03257315 v1
Image document

Recurrent Neural Networks Modelling based on Riemannian Symmetric Positive Definite Manifold

Léa Dubreil , Samy Labsir , Etienne Rouanet-Labé , Gaël Pages
EUSIPCO, Aug 2024, Lyon, France
Communication dans un congrès hal-04708219 v1
Image document

Full Slepian-Bangs Formula for Fisher Information on Lie Groups

Sara El Bouch , Samy Labsir , Alexandre Renaux , Jordi Vilà-Valls , Éric Chaumette
Asilomar Conference on Signals, Systems and Computers, 2024, Pacific Grove, United States
Communication dans un congrès hal-04760572 v1
Image document

An Intrinsic Modified Cramér-Rao Bound on Lie Groups

Sara El Bouch , Samy Labsir , Alexandre Renaux , Jordi Vilà-Valls , Eric Chaumette
2024 International conference on information fusion (FUSION 2024), Jul 2024, Venise, Italy
Communication dans un congrès hal-04620291 v1

Theoretical Performance Analysis of GNSS Tracking Loops

Samy Labsir , Gaël Pages , Lorenzo Ortega , Jordi Vilà-Valls , Éric Chaumette
2023 IEEE/ION Position, Location and Navigation Symposium (PLANS), Apr 2023, Monterey, France. pp.946-951, ⟨10.1109/PLANS53410.2023.10139980⟩
Communication dans un congrès hal-04541103 v1
Image document

Intrinsic Slepian-Bangs type formula for parameters on LGs with unknown measurement noise variance

Samy Labsir , Alexandre Renaux , Jordi Vilà-Valls , Eric Chaumette
Asilomar Conference on Signals, Systems, and Computers, Oct 2023, Pacific Groove, United States
Communication dans un congrès hal-04314563 v1
Image document

Cramér-Rao Bound on Lie Groups with Observations on Lie Groups: Application to SE(2)

Samy Labsir , Alexandre Renaux , Jordi Vilà-Valls , Éric Chaumette
ICASSP 2023 - 2023 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Jun 2023, Rhodes Island, Greece. ⟨10.1109/ICASSP49357.2023.10096257⟩
Communication dans un congrès hal-04162633 v1

Robust M-Type Error-State Kalman Filters for Attitude Estimation

Andrea Belles , Daniel A. Medina , Paul Chauchat , Samy Labsir , Jordi Vilà-Valls
2023 31st European Signal Processing Conference (EUSIPCO), Sep 2023, Helsinki, Finland. ⟨10.23919/eusipco58844.2023.10289871⟩
Communication dans un congrès hal-04356708 v1
Image document

Borne de Cramér-Rao sur groupe de Lie avec observations sur groupe de Lie : application à SO(2)

Samy Labsir , Alexandre Renaux , Jordi Vilà-Valls , Eric Chaumette
GRETSI 2023 - XXIXème Colloque Francophone de Traitement du Signal et des Images, Aug 2023, Grenoble, France
Communication dans un congrès hal-04172585 v1

An Intrinsic McAulay-Seidman Bound for Parameters Evolving on Matrix Lie Groups

Samy Labsir , Daniel Medina , Jordi Vilá-Valls , Eric Chaumette
2022 56th Asilomar Conference on Signals, Systems, and Computers, Oct 2022, Pacific Grove, France. pp.71-75, ⟨10.1109/IEEECONF56349.2022.10051899⟩
Communication dans un congrès hal-04537127 v1

A Lie-group based modelling for centroid and shape estimation of a cluster of space debris

Samy Labsir , Audrey Giremus , Brice Yver , Thomas Benoudiba-Campanini
2020 28th European Signal Processing Conference (EUSIPCO), Jan 2021, Amsterdam, France. pp.960-964, ⟨10.23919/Eusipco47968.2020.9287641⟩
Communication dans un congrès hal-04538262 v1

Modèle et algorithme sur groupe de Lie pour l’estimation de la forme d’un amas de débris spatiaux

Samy Labsir , Audrey Giremus , Brice Yver , Thomas Benoudiba-Campanini
Colloque Gretsi, Aug 2019, Lille, France
Communication dans un congrès hal-02531554 v1

Tracking a cluster of space debris in low orbit by filtering on Lie groups

Samy Labsir , Audrey Giremus , Brice Yver , Thomas Benoudiba-Campanini
IEEE Int. Conf. Acoust., Speech, and Signal Processing (ICASSP), May 2019, Brighton, United Kingdom
Communication dans un congrès hal-02531539 v1