Zobrazeno 1 - 10 of 571 pro vyhledávání: '"Problèmes inverses"'
1
Méthodes de démélange et de déconvolution d’objets dans des images : applications en imagerie astronomique à haut-contraste
Autor: Thé, Samuel
Publikováno v: Astrophysics [astro-ph]. Université Claude Bernard-Lyon I, 2023. English. ⟨NNT : 2023LYO10030⟩
High-contrast imaging of circumstellar environments plays a key role in understanding the formation and evolution of exoplanets. Instruments such as SPHERE have been dedicated to imaging such environments thanks to the coupling of extreme adaptive op
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3393::9514f7d29dfb52a4cab944c3f3adfce9
https://theses.hal.science/tel-04099835/document
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2
Dissertation/ Thesis
Simulation-inversion des diagraphies
Autor: Vandamme, Thibaud
L’évaluation des formations géologiques consiste en l’analyse et la synthèse de données de différentes sources, de différentes échelles (microscopique à kilométrique) et acquises à des dates très variables. Le processus conventionnel d
Externí odkaz: http://oatao.univ-toulouse.fr/24046/1/Vandamme_thibaud.pdf
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3
Apprentissage et optimisation pour la super-résolution 3D en microscopie de fluorescence
Autor: Stergiopoulou, Vasiliki
Publikováno v: Optimization and Control [math.OC]. Université Côte d'Azur, 2023. English. ⟨NNT : 2023COAZ4007⟩
The objective of this thesis is to develop new algorithmic reconstruction methods for super-resolution in fluorescence microscopy. The spatial resolution of images of live samples obtained by fluorescence microscopes is physically limited due to the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od_______165::cd2020c9dcf11b427f5892041f63a269
https://theses.hal.science/tel-04089027/document
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4
Méthodes d'apprentissage pour l'IRM computationnelle
Autor: Gossard, Alban
Publikováno v: Optimization and Control [math.OC]. Université Toulouse 3 Paul Sabatier, 2022. English. ⟨NNT : ⟩
Medical Imaging. Université Paul Sabatier-Toulouse III, 2022. English. ⟨NNT : 2022TOU30209⟩
This thesis addresses different aspects of learning for computational Magnetic Resonance Imaging. The first chapter is an introduction to computational imaging and it illustrates through the case of MRI the developments that have guided this field. I
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::3de07a0ae23568a8f5530bfd492733a5
https://hal.science/tel-03956852
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5
Régularisation par la variation totale pour la reconstruction d'images constantes par morceaux : identification du support et méthodes numériques sans grille
Autor: Petit, Romain
Publikováno v: Optimization and Control [math.OC]. Université Paris Dauphine-PSL, 2022. English. ⟨NNT : ⟩
This thesis is devoted to the recovery of piecewise constant images from noisy linear measurements. We aim at analyzing variational reconstruction methods based on total (gradient) variation regularization. The total variation functional has been ext
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od_______165::3575c25ac3ab7b33ca21c02c4edf32ea
https://theses.hal.science/tel-03964814
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7
Reconstruction de l'activité corticale à partir de données MEG à l'aide de réseaux cérébraux et de délais de transmission estimés à partir d'IRMd
Autor: Kojčić, Ivana
Publikováno v: Medical Imaging. Université Côte d'Azur, 2022. English. ⟨NNT : ⟩
Medical Imaging. Université Côte d'Azur, 2022. English. ⟨NNT : 2022COAZ4070⟩
White matter fibers transfer information between brain regions with delays that are observable with magnetoencephalography and electroencephalography (M/EEG) due to their millisecond temporal resolution. We can represent the brain as a graph where no
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::78a5516aa91d2115217016f1d6a56dd4
https://hal.inria.fr/tel-03944354v2/document
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8
Modélisation guidée par les données des fonctions d'étalement du point des télescopes terrestres et spatiaux
Autor: Liaudat, Tobias Ignacio
Publikováno v: Image Processing [eess.IV]. Université Paris-Saclay, 2022. English. ⟨NNT : 2022UPASP118⟩
Gravitational lensing is the distortion of the images of distant galaxies by intervening massive objects and constitutes a powerful probe of the Large Scale Structure of our Universe. Cosmologists use weak (gravitational) lensing to study the nature
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::d717a3308ade179a0925eea962e835f9
https://theses.hal.science/tel-03944690
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9
Analyse de convergence pour des méthodes d’inversion multi-étapes de type one-shot
Autor: Bonazzoli, Marcella, Haddar, Houssem, Vu, Tuan
Publikováno v: [Research Report] RR-9477, Inria Saclay; ENSTA ParisTech. 2022
In this work we are interested in general linear inverse problems where the corresponding forward problem is solved iteratively using fixed point methods. Then one-shot methods, which iterate at the same time on the forward problem solution and on th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od_______165::e78a77749de27e135b09fef840b1f6d6
https://inria.hal.science/hal-03727759v2/document
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