Interbands phase models for polychromatic image reconstruction in optical interferometry
| Autor: | David Mary, Antony Schutz, Ferréol Soulez, A. Ferrari, Éric Thiébaut, Martin Vannier |
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| Přispěvatelé: | Joseph Louis LAGRANGE (LAGRANGE), Université Côte d'Azur (UCA)-Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Observatoire de la Côte d'Azur, Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Centre de Recherche Astrophysique de Lyon (CRAL), École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS), Biomedical Imaging Group [Lausanne], Ecole Polytechnique Fédérale de Lausanne (EPFL), Université Nice Sophia Antipolis (1965 - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur, COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2016 |
| Předmět: |
Scale (ratio)
Computer science business.industry multiwavelengths ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Closure (topology) Physics::Optics 020206 networking & telecommunications 02 engineering and technology Iterative reconstruction 01 natural sciences 010309 optics Interferometry phases estimation [INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing Image reconstruction 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Computer vision Artificial intelligence optical interferometry business Image restoration ComputingMethodologies_COMPUTERGRAPHICS |
| Zdroj: | Astronomical Telescopes + Instrumentation Conference on Optical and Infrared Interferometry and Imaging {V} ({ATI'16}) Astronomical Telescopes + Instrumentation Conference on Optical and Infrared Interferometry and Imaging, 2016, Edimburgh, United Kingdom. ⟨10.1117/12.2233010⟩ Astronomical Telescopes + Instrumentation Conference on Optical and Infrared Interferometry and Imaging {V} ({ATI'16}), 2016, Edimburgh, United Kingdom. ⟨10.1117/12.2233010⟩ |
| ISSN: | 0277-786X |
| DOI: | 10.1117/12.2233010 |
| Popis: | International audience; This paper presents an extension of the spatio-spectral (" 3D ") image reconstruction algorithm called PAINTER (Polychromatic opticAl INTErferometric Reconstruction software). The algorithm is able to solve large scale problems and relies on an iterative process, which alternates estimation of polychromatic images and of complex visibilities. The complex visibilities are not only estimated from squared moduli and closure phases, but also from differential phases, which helps to constrain the polychromatic reconstruction. Alternative methods to construct the specific differential phases used in PAINTER are proposed. Simulations on synthetic data illustrate the specificities of the proposed methods. |
| Databáze: | OpenAIRE |
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