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Proceedings Paper

Interbands phase models for polychromatic image reconstruction in optical interferometry
Author(s): Antony Schutz; André Ferrari; Éric Thiébaut; Férréol Soulez; Martin Vannier; David Mary
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Paper Abstract

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.

Paper Details

Date Published: 4 August 2016
PDF: 9 pages
Proc. SPIE 9907, Optical and Infrared Interferometry and Imaging V, 99073K (4 August 2016); doi: 10.1117/12.2233010
Show Author Affiliations
Antony Schutz, Lab. J.-L. Lagrange, Univ. Côte de Nice Sophia Antipolis, CNRS, Observatoire de la Côte d'Azur (France)
André Ferrari, Lab. J.-L. Lagrange, Univ. Côte de Nice Sophia Antipolis, CNRS, Observatoire de la Côte d'Azur (France)
Éric Thiébaut, Univ. Lyon, Univ. Lyon 1, CNRS, Ctr. de Recherche Astrophysique de Lyon (France)
Férréol Soulez, Univ. Lyon, Univ. Lyon 1, CNRS, Ctr. de Recherche Astrophysique de Lyon (France)
École Polytechnique Fédérale de Lausanne (Switzerland)
Martin Vannier, Lab. J.-L. Lagrange, Univ. Côte de Nice Sophia Antipolis, CNRS, Observatoire de la Côte d'Azur (France)
David Mary, Lab. J.-L. Lagrange, Univ. Côte de Nice Sophia Antipolis, CNRS, Observatoire de la Côte d'Azur (France)


Published in SPIE Proceedings Vol. 9907:
Optical and Infrared Interferometry and Imaging V
Fabien Malbet; Michelle J. Creech-Eakman; Peter G. Tuthill, Editor(s)

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