An algorithm for non-convex off-the-grid sparse spike estimation with a minimum separation constraint
| hal.structure.identifier | Centre National de la Recherche Scientifique [CNRS] | |
| hal.structure.identifier | Institut de Mathématiques de Bordeaux [IMB] | |
| dc.contributor.author | TRAONMILIN, Yann | |
| hal.structure.identifier | Institut de Mathématiques de Bordeaux [IMB] | |
| dc.contributor.author | AUJOL, Jean-François | |
| hal.structure.identifier | Institut de Mathématiques de Bordeaux [IMB] | |
| dc.contributor.author | LECLAIRE, Arthur | |
| dc.date.accessioned | 2024-04-04T02:48:39Z | |
| dc.date.available | 2024-04-04T02:48:39Z | |
| dc.date.conference | 2020-12-02 | |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/191758 | |
| dc.description.abstractEn | Theoretical results show that sparse off-the-grid spikes can be estimated from (possibly compressive) Fourier measurements under a minimum separation assumption. We propose a practical algorithm to minimize the corresponding non-convex functional based on a projected gradient descent coupled with an initialization procedure. We give qualitative insights on the theoretical foundations of the algorithm and provide experiments showing its potential for imaging problems. | |
| dc.language.iso | en | |
| dc.title.en | An algorithm for non-convex off-the-grid sparse spike estimation with a minimum separation constraint | |
| dc.type | Communication dans un congrès | |
| dc.subject.hal | Informatique [cs]/Traitement du signal et de l'image | |
| bordeaux.hal.laboratories | Institut de Mathématiques de Bordeaux (IMB) - UMR 5251 | * |
| bordeaux.institution | Université de Bordeaux | |
| bordeaux.institution | Bordeaux INP | |
| bordeaux.institution | CNRS | |
| bordeaux.conference.title | in Proceedings of iTWIST'20, Paper-ID: 7, Nantes, France, December, 2-4, 2020 | |
| bordeaux.country | FR | |
| bordeaux.conference.city | Nantes | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-03037264 | |
| hal.version | 1 | |
| hal.invited | non | |
| hal.proceedings | non | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-03037264v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.au=TRAONMILIN,%20Yann&AUJOL,%20Jean-Fran%C3%A7ois&LECLAIRE,%20Arthur&rft.genre=unknown |
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