Ammar Mian

Associate professor (Maître de conférences) — LISTIC, Polytech Annecy-Chambéry, Université Savoie Mont-Blanc

In the world outside the tower: associate professor at LISTIC (Université Savoie Mont-Blanc), working on statistical signal processing and Riemannian-geometry methods for robust and remote-sensing problems.

Positions

2020— — Maître de conférences, LISTIC, Polytech Annecy-Chambéry, Université Savoie Mont-Blanc
2019—2020 — Post-doctorant, Aalto University, Finland — Riemannian geometry for statistical learning, with Esa Ollila
2016—2019 — Doctorant, SONDRA, Université Paris-Saclay — SAR image time-series analysis

Education

2019 — Doctorat, Contributions à l'analyse de séries temporelles d'images SAR — SONDRA, Université Paris-Saclay
2016 — Diplôme d'ingénieur, Grenoble INP – Phelma, Traitement du Signal

Publications

On batch normalization for SPDnet — Matthieu Gallet, Ammar Mian, Florent Bouchard, Guillaume Ginolhac. Signal Processing, 2027 (Journal). HAL
Robust Multiping Forward-Looking Sonar Coherent Detection — Olivier Lerda, Guillaume Ginolhac, Ammar Mian, Jean-Philippe Ovarlez, Guillaume Matte, Didier Charlot. doi:10.1109/JOE.2026.3693862, 2026 (Preprint). HAL
pyRiemann — Alexandre Barachant, Quentin Barthélemy, Gabriel Wagner Vom Berg, Alexandre Gramfort, Sylvain Chevallier, Jean-Rémi King, Pedro Rodrigues, Grégoire Cattan, Emanuele Olivetti, Vladislav Goncharenko, Anton Andreev, Tim Näher, Apolline Mellot, Ammar Mian, Steven Mortier, Marie-Constance Corsi, Jona Sassenhagen, Thibault de Surrel, Richard Höchenberger, Pierre Clisson, Igor Carrara, Frida Heskebeck. doi:10.5281/zenodo.593816, 2026 (SOFTWARE). HAL
Generalized Nonnegative Structured Kruskal Tensor Regression — Xinjue Wang, Esa Ollila, Sergiy Vorobyov, Ammar Mian. Signal Processing, 2026 (Journal). HAL
ARMAGNAC: A New Parametric Batch Normalization Layer for SPDNet Architecture — Matthieu Gallet, Florent Bouchard, Ammar Mian, Guillaume Ginolhac. 34th European Signal Processing Conference (EUSIPCO), 2026 (Conference). HAL
SPD Learn: A Geometric Deep Learning Python Library for Neural Decoding Through Trivialization — Bruno Aristimunha, Ce Ju, Antoine Collas, Florent Bouchard, Ammar Mian, Bertrand Thirion, Sylvain Chevallier, Reinmar Kobler. HAL, 2026 (Preprint). HAL
FedSPDnet: Geometry-Aware Federated Deep Learning with SPDnet — Thibault Pautrel, Florent Bouchard, Ammar Mian, Guillaume Ginolhac. EUSIPCO, 2026 (Conference). HAL
Détection et Localisation des Fissures Volcaniques dans les Interférogrammes par IA — Thomas Petellat, Christophe Lin Kwong Chon, Yajing Yan, Ammar Mian. Rencontre Scientifique Volcanologique, 2025 (Conference). HAL
Classification of Buried Objects From Ground Penetrating Radar Images by Using Second-Order Deep Learning Models — Douba Jafuno, Ammar Mian, Guillaume Ginolhac, Nickolas Stelzenmuller. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2025 (Journal). HAL
EFFECTS OF CLASS DISTRIBUTION SHIFT IN MULTI-LABEL CLASSIFICATION SPLITS: A STUDY CASE ON BIGEARTHNET — Matthieu Verlynde, Ammar Mian, Yajing Yan. IGARSS, 2025 (Conference). HAL
RENYI DIVERGENCES LEARNING FOR EXPLAINABLE CLASSIFICATION OF SAR IMAGE PAIRS — Matthieu Gallet, Ammar Mian, Abdourrahmane Atto. ICASSP 2024 - 2024 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2024 (Conference). HAL
Random matrix theory improved Fréchet mean of symmetric positive definite matrices — Florent Bouchard, Ammar Mian, Malik Tiomoko, Guillaume Ginolhac, Frédéric Pascal. Forty-first International Conference on Machine Learning (ICML 2024), 2024 (Conference). HAL
Online change detection in SAR time-series with Kronecker product structured scaled Gaussian models — Ammar Mian, Guillaume Ginolhac, Florent Bouchard, Arnaud Breloy. Signal Processing, 2024 (Journal). HAL
Buried Object Classification from GPR Data by using Second Order Deep Learning Models — Douba Jafuno, Ammar Mian, Guillaume Ginolhac, Nickolas Stelzenmuller. International Geoscience and Remote Sensing Symposium (IGARSS), 2024 (Conference). HAL
Robust Detection for Mills Cross Sonar — Olivier Lerda, Ammar Mian, Guillaume Ginolhac, Jean-Philippe Ovarlez, Didier Charlot. IEEE Journal of Oceanic Engineering, 2024 (Journal). HAL
Détecteur de Rao robuste pour un sonar à croix de Mills — Olivier Lerda, Ammar Mian, Guillaume Ginolhac, Jean-Philippe Ovarlez. GRETSI, 2023 (Conference). HAL
New Robust Sparse Convolutional Coding Inversion Algorithm for Ground Penetrating Radar Images — Matthieu Gallet, Ammar Mian, Guillaume Ginolhac, Esa Ollila, Nickolas Stelzenmuller. IEEE Transactions on Geoscience and Remote Sensing, 2023 (Journal). HAL
Learning Graphical Factor Models with Riemannian Optimization — Alexandre Hippert-Ferrer, Florent Bouchard, Ammar Mian, Titouan Vayer, Arnaud Breloy. Joint European Conference on Machine Learning and Knowledge Discovery in Databases (ECML PKDD 2023), 2023 (Conference). HAL
Classification d'objets enfouis par un modèle du second d'ordre en utilisant des données GPR — Douba Jafuno, Ammar Mian, Guillaume Ginolhac, Nickolas Stelzenmuller. GRETSI, 2023 (Conference). HAL
Optimisation Riemannienne pour l'apprentissage de graphes structurés — Alexandre Hippert-Ferrer, Florent Bouchard, Ammar Mian, Titouan Vayer, Arnaud Breloy. GRETSI 2023 - XXIXème Colloque Francophone de Traitement du Signal et des Images, 2023 (Conference). HAL
Riemannian classification of EEG signals with missing values — Alexandre Hippert-Ferrer, Ammar Mian, Florent Bouchard, Frédéric Pascal. 30th European Signal Processing Conference (EUSIPCO 2022), 2022 (Conference). HAL
Nouvel algorithme d'inversion robuste pour le RADAR GPR — Matthieu Gallet, Ammar Mian, Guillaume Ginolhac, Nickolas Stelzenmuller. GRETSI, XXVIIIème Colloque Francophone de Traitement du Signal et des Images, 2022 (Conference). HAL
Classification of GPR Signals via Covariance Pooling on CNN Features within a Riemannian Framework — Matthieu Gallet, Ammar Mian, Guillaume Ginolhac, Nickolas Stelzenmuller. International Geoscience and Remote Sensing Symposium, 2022 (Conference). HAL
Détection de changements basée sur les covariances de séries d’images SAR — Ammar Mian, Arnaud Breloy, Frédéric Pascal. Détection de changements et analyse des séries temporelles d’images 1: Méthodes non supervisées, 2022 (Chapter). HAL
A Comparative Study of Statistical-Based Change Detection Methods for Multidimensional and Multitemporal SAR Images — Ammar Mian, Frédéric Pascal. Advances in Condition Monitoring and Structural Health Monitoring, 2021 (Chapter). HAL
An Overview of Covariance‐based Change Detection Methodologies in Multivariate SAR Image Time Series — Ammar Mian, Guillaume Ginolhac, Jean-Philippe Ovarlez, Arnaud Breloy, Frédéric Pascal. Change Detection and Image Time Series Analysis 1, 2021 (Chapter). HAL
On-line Kronecker Product Structured Covariance Estimation with Riemannian geometry for t-distributed data — Florent Bouchard, Arnaud Breloy, Ammar Mian, Guillaume Ginolhac. The 29th European Signal Processing Conference (EUSIPCO 2021), 2021 (Conference). HAL
Robust Low-rank Change Detection for SAR Image Time Series — Ammar Mian, Antoine Collas, Arnaud Breloy, Guillaume Ginolhac, Jean-Philippe Ovarlez. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020 (Journal). HAL
Riemannian geometry for compound Gaussian distributions: Application to recursive change detection — Florent Bouchard, Ammar Mian, Jialun Zhou, Salem Said, Guillaume Ginolhac, Yannick Berthoumieu. Signal Processing, 2020 (Journal). HAL
Design of New Wavelet Packets Adapted to High-Resolution SAR Images With an Application to Target Detection — Ammar Mian, Jean-Philippe Ovarlez, Abdourrahmane Atto, Guillaume Ginolhac. IEEE Transactions on Geoscience and Remote Sensing, 2019 (Journal). HAL
Détection de Changement Robuste en Rang Faible pour les Séries Temporelles d'Images SAR — Ammar Mian, Arnaud Breloy, Guillaume Ginolhac, Jean-Philippe Ovarlez. GRETSI 2019, 2019 (Conference). HAL
New Robust Statistics for Change Detection in Time Series of Multivariate SAR Images — Ammar Mian, Guillaume Ginolhac, Jean-Philippe Ovarlez, Abdourrahmane Atto. IEEE Transactions on Signal Processing, 2019 (Journal). HAL
Contributions to SAR Image Time Series Analysis — Ammar Mian. doi:10.70675/1537eeccz247fz46b4za4c7z294c82ecd5c7, 2019 (Thesis). HAL
Designing Sar Images Change-point Estimation Strategies Using an Mse Lower Bound — Ammar Mian, Lucien Bacharach, Guillaume Ginolhac, Alexandre Renaux, Mohammed Nabil El Korso, Jean-Philippe Ovarlez. 2019 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2019), 2019 (Conference). HAL
Detection Methods Based on Structured Covariance Matrices for Multivariate SAR Images Processing — Rayen Ben Abdallah, Ammar Mian, Arnaud Breloy, Abigaël Taylor, Mohammed Nabil El Korso, David Lautru. IEEE Geoscience and Remote Sensing Letters, 2019 (Journal). HAL
A Robust Change Detector for Highly Heterogeneous Multivariate Images — Ammar Mian, Jean-Philippe Ovarlez, Guillaume Ginolhac, Abdourahmane M Atto. 2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2018 (Conference). HAL
Robust Detection and Estimation of Change-Points in a Time Series of Multivariate Images — Ammar Mian, Jean-Philippe Ovarlez, Guillaume Ginolhac, Abdourrahmane Atto. EUSIPCO 2018, 2018 (Conference). HAL
Multivariate Change Detection on High Resolution Monovariate SAR Image Using Linear Time-Frequency Analysis — Ammar Mian, Jean-Philippe Ovarlez, Guillaume Ginolhac, A Atto. 25th European Signal Processing Conference (EUSIPCO 2017), 2017 (Conference). HAL
Détection de changement sur images SAR monovariées par analyse temps-fréquence linéaire — Ammar Mian, Jean-Philippe Ovarlez, Guillaume Ginolhac, Abdourrahmane Atto. GRETSI 2017, 2017 (Conference). HAL

Projects & tools

Qanat — A command-line tool for managing and reproducing numerical experiments. (repository)

Students supervised

Matthieu Verlynde — Apprentissage frugal pour la télédétection (PhD, 2024—, current)
Wenli Shi — Réseau de diffusions sparses sur des données non textuelles (PhD, 2025—, current)
Douba Jafuno — Classification de signaux GPR — defended 4 Nov 2025 (PhD, 2022—2025)
Olivier Lerda — Détection robuste pour un sonar à croix de Mills — defended 17 Dec 2024 (PhD, 2023—2024)
Thibault Pautrel — SPDnet federated learning (M2, 2025)
Thomas Petellat — Détection de fissures volcaniques par apprentissage automatique (M2, 2025)
Mamour Ndiaye — Pansharpening avec la variation totale (M2, 2025)
Emma Molière — Pansharpening and unrolling (M2, 2024)
Matthieu Verlynde — Efficient algorithms for remote sensing (M2, 2024)
Matthieu Gallet — Inversion robuste de signaux GPR (M2, 2020)

Contact

Email: ammar.mian@univ-smb.fr
Office: LISTIC, Polytech Annecy-Chambéry, Université Savoie Mont-Blanc, Annecy
HAL: search results
GitHub: https://github.com/ammarmian

On the building of this tower

Design: Ammar Mian
Drawn: Claude Opus 5 — in Claude Code
Stack: three.js 0.184 · TypeScript 5.6 — Vite 5.4 · anime.js 3.2
Type: Space Grotesk · JetBrains Mono
Source: HAL open archive — the shelves are fetched live, never a snapshot
Build: GitHub Actions → Pages — a static site; there is no server

Every room, every material and every tool here was chosen and specified by me. The code that builds them was written in conversation with Claude Opus 5.

There are no models and no textures anywhere in this site. Every shape in the tower is built from boxes and cylinders in code — the grain in the floorboards, the bark on the trees and the rust on the cars are all noise functions written into the shaders.