Correlation wavefront sensing for extended objects

Matthew J. Townson*, Gordon D. Love, Aglaè Kellerer, Christopher D. Saunter

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)


Correlation wavefront sensing for extended objects requires both reference images for cross-correlation and centroiding parameters for measuring the shift in the correlation image. We present a method for optimising centroiding parameters demonstrated on a center of mass measurement of the correlation images. The process can be entirely automated and offloaded out of the adaptive optics system into a separate pipeline and so not interfere with the adaptive optics system. This means the method is implemented entirely in software, so can be added to any existing adaptive optics system which employs correlation wavefront sensors.

Original languageEnglish
Title of host publicationAdaptive Optics Systems V
EditorsEnrico Marchetti, Jean-Pierre Veran, Laird M. Close
ISBN (Electronic)9781510601970
Publication statusPublished - 2016
Externally publishedYes
EventAdaptive Optics Systems V - Edinburgh, United Kingdom
Duration: 26 Jun 20161 Jul 2016

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceAdaptive Optics Systems V
Country/TerritoryUnited Kingdom

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