ABISM: an interactive image quality assessment tool for adaptive optics instruments

Julien H. Girard; Martin Tourneboeuf

doi:10.1117/12.2231493

2 September 2016 ABISM: an interactive image quality assessment tool for adaptive optics instruments

Julien H. Girard, Martin Tourneboeuf

Proceedings Volume 9909, Adaptive Optics Systems V; 99097V (2016) https://doi.org/10.1117/12.2231493
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

ABISM (Automatic Background Interactive Strehl Meter) is a interactive tool to evaluate the image quality of astronomical images. It works on seeing-limited point spread functions (PSF) but was developed in particular for diffraction-limited PSF produced by adaptive optics (AO) systems. In the VLT service mode (SM) operations framework, ABISM is designed to help support astronomers or telescope and instruments operators (TIOs) to quickly measure the Strehl ratio (SR) during or right after an observing block (OB) to evaluate whether it meets the requirements/predictions or whether is has to be repeated and will remain in the SM queue. It's a Python-based tool with a graphical user interface (GUI) that can be used with little AO knowledge. The night astronomer (NA) or Telescope and Instrument Operator (TIO) can launch ABISM in one click and the program is able to read keywords from the FITS header to avoid mistakes. A significant effort was also put to make ABISM as robust (and forgiven) with a high rate of repeatability. As a matter of fact, ABISM is able to automatically correct for bad pixels, eliminate stellar neighbours and estimate/fit properly the background, etc.

Citation Download Citation

Julien H. Girard and Martin Tourneboeuf "ABISM: an interactive image quality assessment tool for adaptive optics instruments", Proc. SPIE 9909, Adaptive Optics Systems V, 99097V (2 September 2016); https://doi.org/10.1117/12.2231493

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