Interbands phase models for polychromatic image reconstruction in optical interferometry

Antony Schutz; André Ferrari; Éric Thiébaut; Férréol Soulez; Martin Vannier; David Mary

doi:10.1117/12.2233010

4 August 2016 Interbands phase models for polychromatic image reconstruction in optical interferometry

Antony Schutz, André Ferrari, Éric Thiébaut, Férréol Soulez, Martin Vannier, David Mary

Proceedings Volume 9907, Optical and Infrared Interferometry and Imaging V; 99073K (2016) https://doi.org/10.1117/12.2233010
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

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.

Citation Download Citation

Antony Schutz, André Ferrari, Éric Thiébaut, Férréol Soulez, Martin Vannier, and David Mary "Interbands phase models for polychromatic image reconstruction in optical interferometry", Proc. SPIE 9907, Optical and Infrared Interferometry and Imaging V, 99073K (4 August 2016); https://doi.org/10.1117/12.2233010

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