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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 8, Iss. 6 — Jun. 27, 2013

Computer vision applications for coronagraphic optical alignment and image processing

Dmitry Savransky, Sandrine J. Thomas, Lisa A. Poyneer, and Bruce A. Macintosh  »View Author Affiliations


Applied Optics, Vol. 52, Issue 14, pp. 3394-3403 (2013)
http://dx.doi.org/10.1364/AO.52.003394


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Abstract

Modern coronagraphic systems require very precise alignment between optical components and can benefit greatly from automated image processing. We discuss three techniques commonly employed in the fields of computer vision and image analysis as applied to the Gemini Planet Imager, a new facility instrument for the Gemini South Observatory. We describe how feature extraction and clustering methods can be used to aid in automated system alignment tasks, and also present a search algorithm for finding regular features in science images used for calibration and data processing. Along with discussions of each technique, we present our specific implementation and show results of each one in operation.

© 2013 Optical Society of America

OCIS Codes
(100.5010) Image processing : Pattern recognition
(350.1270) Other areas of optics : Astronomy and astrophysics
(150.1135) Machine vision : Algorithms
(100.3008) Image processing : Image recognition, algorithms and filters

ToC Category:
Image Processing

History
Original Manuscript: November 20, 2012
Revised Manuscript: March 5, 2013
Manuscript Accepted: March 11, 2013
Published: May 9, 2013

Virtual Issues
Vol. 8, Iss. 6 Virtual Journal for Biomedical Optics

Citation
Dmitry Savransky, Sandrine J. Thomas, Lisa A. Poyneer, and Bruce A. Macintosh, "Computer vision applications for coronagraphic optical alignment and image processing," Appl. Opt. 52, 3394-3403 (2013)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-52-14-3394


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