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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 14 — May. 10, 2013
  • pp: 3394–3403

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)

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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

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

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)

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  1. S. Seager, Exoplanets (University of Arizona, 2011).
  2. C. Marois, B. Macintosh, T. Barman, B. Zuckerman, I. Song, J. Patience, D. Lafreniere, and R. Doyon, “Direct imaging of multiple planets orbiting the star HR 8799,” Science 322, 1348 (2008). [CrossRef]
  3. B. A. Macintosh, J. R. Graham, D. W. Palmer, R. Doyon, J. Dunn, D. T. Gavel, J. Larkin, B. Oppenheimer, L. Saddlemyer, A. Sivaramakrishnan, J. K. Wallace, B. Bauman, D. A. Erickson, C. Marois, L. A. Poyneer, and R. Soummer, “The Gemini planet imager: from science to design to construction,” Proc. SPIE 7015, 701518 (2008).
  4. B. A. Macintosh, A. Anthony, J. Atwood, N. Barriga, B. Bauman, K. Caputa, J. Chilcote, D. Dillon, R. Doyon, J. Dunn, D. T. Gavel, R. Galvez, S. J. Goodsell, J. R. Graham, M. Hartung, J. Isaacs, D. Kerley, Q. Konopacky, K. Labrie, J. E. Larkin, J. Maire, C. Marois, M. Millar-Blanchaer, A. Nunez, B. R. Oppenheimer, D. W. Palmer, J. Pazder, M. Perrin, L. A. Poyneer, C. Quirez, F. Rantakyro, V. Reshtov, L. Saddlemyer, N. Sadakuni, D. Savransky, A. Sivaramakrishnan, M. Smith, R. Soummer, S. Thomas, J. K. Wallace, J. Weiss, and S. Wiktorowicz, “The Gemini planet imager: integration and status,” Proc. SPIE 8446, 84461U (2012).
  5. L. A. Poyneer and B. Macintosh, “Spatially filtered wave-front sensor for high-order adaptive optics,” J. Opt. Soc. Am. A 21, 810–819 (2004). [CrossRef]
  6. J. K. Wallace, J. Angione, R. Bartos, P. Best, R. Burruss, F. Fregoso, B. M. Levine, B. Nemati, M. Shao, and C. Shelton, “Post-coronagraph wavefront sensor for Gemini planet imager,” Proc. SPIE 7015, 70156N (2008).
  7. J. Maire, M. D. Perrin, R. Doyon, E. Artigau, J. Dunn, D. T. Gavel, J. R. Graham, D. Lafrenière, J. E. Larkin, J. Lavigne, B. A. Macintosh, C. Marois, B. Oppenheimer, D. W. Palmer, L. A. Poyneer, S. Thibault, and J. Véran, “Data reduction pipeline for the Gemini planet imager,” Proc. SPIE 7735, 773531 (2010).
  8. R. Soummer, “Apodized pupil Lyot coronagraphs for arbitrary telescope apertures,” Astrophys. J. Lett. 618, L161–L164 (2005). [CrossRef]
  9. A. Sivaramakrishnan, J. Lloyd, P. Hodge, and B. Macintosh, “Speckle decorrelation and dynamic range in speckle noise-limited imaging,” Astrophys. J. Lett. 581, L59(2008). [CrossRef]
  10. C. Marois, National Research Council, Herzberg Institute of Astrophysics, 5071 West Saanich Road, Victoria, BC V9E 2E7, Canada (personal communication, 2012).
  11. A. Sivaramakrishnan and B. Oppenheimer, “Astrometry and photometry with coronagraphs,” Astrophys. J. 647, 620 (2006). [CrossRef]
  12. H. Stone, M. Orchard, E. Chang, and S. Martucci, “A fast direct Fourier-based algorithm for subpixel registration of images,” IEEE Trans. Geosci. Remote Sens. 39, 2235–2243 (2001). [CrossRef]
  13. C. Marois, D. Lafrenière, B. Macintosh, and R. Doyon, “Accurate astrometry and photometry of saturated and coronagraphic point spread functions,” Astrophys. J. 647, 612 (2006). [CrossRef]
  14. D. H. Ballard, “Generalizing the Hough transform to detect arbitrary shapes,” Pattern Recogn. 13, 111–122 (1981).
  15. Y. Xie and Q. Ji, “A new efficient ellipse detection method,” in Proceedings of IEEE 16th International Conference on Pattern Recognition, Vol. 2 (IEEE, 2002), pp. 957–960.
  16. J. MacQueen, “Some methods for classification and analysis of multivariate observations,” in Proceedings of the Fifth Berkeley Symposium on Mathematical Statistics and Probability, L. Le Cam and J. Neyman, eds. (University of California, 1967), Vol. 1, p. 14.
  17. S. Russell, “Efficient memory-bounded search methods,” in Proceedings of the 10th European Conference on Artificial Intelligence, B. Neumann, ed. (Wiley, 1992), pp. 1–5.

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