Frame combination techniques for ultra-high-contrast imaging

Joseph C. Carson; Markus Feldt; Silvano Desidera; Maud Langlois; Franco Joos; David Mouillet; Jean-Luc Beuzit

doi:10.1117/12.789172

9 July 2008 Frame combination techniques for ultra-high-contrast imaging

Joseph C. Carson, Markus Feldt, Silvano Desidera, Maud Langlois, Franco Joos, David Mouillet, Jean-Luc Beuzit

Proceedings Volume 7014, Ground-based and Airborne Instrumentation for Astronomy II; 70143I (2008) https://doi.org/10.1117/12.789172
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

We summarize here an experimental frame combination pipeline we developed for ultra high-contrast imaging with systems like the upcoming VLT SPHERE instrument. The pipeline combines strategies from the Drizzle technique, the Spitzer IRACproc package, and homegrown codes, to combine image sets that may include a rotating field of view and arbitrary shifts between frames. The pipeline is meant to be robust at dealing with data that may contain non-ideal effects like sub-pixel pointing errors, missing data points, non-symmetrical noise sources, arbitrary geometric distortions, and rapidly changing point spread functions. We summarize in this document individual steps and strategies, as well as results from preliminary tests and simulations.

Citation Download Citation

Joseph C. Carson, Markus Feldt, Silvano Desidera, Maud Langlois, Franco Joos, David Mouillet, and Jean-Luc Beuzit "Frame combination techniques for ultra-high-contrast imaging", Proc. SPIE 7014, Ground-based and Airborne Instrumentation for Astronomy II, 70143I (9 July 2008); https://doi.org/10.1117/12.789172

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