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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Vol. 16, Iss. 7 — Jul. 1, 1999
  • pp: 1745–1750

Technique for combining incoherent interferometric images

E. Keith Hege, Julian C. Christou, Stuart M. Jefferies, and Matthew Cheselka  »View Author Affiliations

JOSA A, Vol. 16, Issue 7, pp. 1745-1750 (1999)

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We discuss the use of a physically constrained iterative deconvolution algorithm to combine and deconvolve images taken with interferometric imaging arrays. To demonstrate this method we have simulated imaging with the Large Binocular Telescope [Proc. SPIE 3352, 23 (1998)]. This is a two-element interferometer in which each element is under adaptive-optics control for atmospheric compensation and in which the fixed baseline is maintained by active control to compensate for elastic flexure of steel under variable gravitational loading. We show how images taken at different position angles, by means of the two 8.4-m apertures, co-phased across the 14.6-m center-to-center separation, can be used to tomographically reconstruct an astronomical object at the full-aperture (23-m) diffraction limit of the Large Binocular Telescope.

© 1999 Optical Society of America

OCIS Codes
(100.0100) Image processing : Image processing
(100.1830) Image processing : Deconvolution
(100.3010) Image processing : Image reconstruction techniques
(100.3190) Image processing : Inverse problems
(100.6640) Image processing : Superresolution
(110.5100) Imaging systems : Phased-array imaging systems

Original Manuscript: November 19, 1998
Revised Manuscript: February 16, 1999
Manuscript Accepted: February 16, 1999
Published: July 1, 1999

E. Keith Hege, Julian C. Christou, Stuart M. Jefferies, and Matthew Cheselka, "Technique for combining incoherent interferometric images," J. Opt. Soc. Am. A 16, 1745-1750 (1999)

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  1. E. Hege, J. Beckers, P. Strittmatter, D. McCarthy, “Multiple mirror telescope as a phased array telescope,” Appl. Opt. 24, 2565–2576 (1984). [CrossRef]
  2. J. M. Hill, P. Salinari, “The Large Binocular Telescope project,” in Advanced Technology Optical/IR Telescopes VI, L. M. Stepp, ed., Proc. SPIE3352, 23–33 (1998). [CrossRef]
  3. D. Sandler, S. Stahl, J. Angel, M. Lloyd-Hart, D. McCarthy, “Adaptive optics for diffraction-limited infrared imaging with 8-m telescopes,” J. Opt. Soc. Am. A 11, 925–945 (1994). [CrossRef]
  4. F. Roddier, C. Roddier, J. Graves, M. Northcott, “Adaptive optics imaging of proto-planetary nebulae: Frosty Leo and the Red Rectangle,” Astrophys. J. 443, 249–260 (1995). [CrossRef]
  5. L. Close, F. Roddier, M. Northcott, C. Roddier, J. Graves, “Adaptive optics 0″.2 resolution infrared images of HL Tauri: direct images of an active accretion disk around a protostar,” Astrophys. J. 478, 766–777 (1997). [CrossRef]
  6. M. Lloyd-Hart, R. Dekany, D. Sandler, D. Wittmann, R. Angel, D. McCarthy, “Progress in diffraction-limited imaging at the Multiple Mirror Telescope with adaptive optics,” J. Opt. Soc. Am. A 11, 846–857 (1994). [CrossRef]
  7. M. Born, E. Wolf, Principles of Optics, 6th ed. (Pergamon, New York, 1980), p. 167 et seq.
  8. W. Traub, “Combining beams from separated telescopes,” Appl. Opt. 25, 528–532 (1986). [CrossRef] [PubMed]
  9. J. Hill, “Strategy for interferometry with the Large Binocular Telescope,” in Amplitude and Intensity Spatial Interferometry II, J. B. Breckinridge, ed., Proc. SPIE2200, 248–259 (1994). [CrossRef]
  10. S. Jefferies, J. Christou, “Restoration of astronomical images by iterative deconvolution,” Astrophys. J. 415, 862–874 (1993). [CrossRef]
  11. J. Christou, E. K. Hege, S. M. Jefferies, C. Keller, “Application of multiframe iterative blind deconvolution for diverse astronomical imaging,” in Amplitude and Intensity Spatial Interferometry II, J. B. Breckinridge, ed., Proc. SPIE2200, 433–444 (1994). [CrossRef]
  12. J. Christou, E. Hege, S. Jefferies, “Speckle deconvolution imaging using an iterative algorithm,” in Advanced Imaging Technologies and Commercial Applications, N. Clark, J. D. Gonglewski, eds., Proc. SPIE2566, 134–143 (1995). [CrossRef]
  13. E. K. Hege, “Psf calibration in astronomical imaging—physical constraints for a noisy problem,” in Signal Recovery and Synthesis, Vol. 11 of 1998 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1998), pp. 2–4.
  14. E. K. Hege, “Super-resolved point-spread-function calibration for astronomical imaging,” in Time-Frequency and Time-Scale Analysis: Proceedings of the IEEE Signal Processing International Symposium (IEEE Service Center, Piscataway, N.J., 1998), pp. 477–480.
  15. E. Thiébaut, J.-M. Conan, “Strict a priori constraints for maximum-likelihood blind deconvolution,” J. Opt. Soc. Am. A 12, 485–492 (1995). [CrossRef]
  16. R. Dekany, K. Hege, D. Wittman, “Searching for planets by differential astrometry with large telescopes,” Astrophys. Space Sci. 212, 299–319 (1994). [CrossRef]
  17. Skylight, the atmospheric imaging software program, is available bookm Twinklesoft, P.O. Box 92838, Pasadena, Calif. 91103 [telephone: (626) 793-1015, e-mail: http://www.twinklesoft.com ].
  18. IRAF is the Image Reduction and Analysis Facility developed at the National Astronomical Observatories. From the IRAF command-line prompt cl>, the galaxy image is dev$pix.
  19. D. Sheppard, B. Hunt, M. Marcellin, “Iterative multiframe superresolution algorithms for atmospheric-turbulence-degraded imagery,” J. Opt. Soc. Am. A 15, 978–992 (1998). [CrossRef]
  20. E. Hege, J. Angel, A. Gleckler, K. Pflibsen, B. Ulich, “An adaptive steerable imaging array,” in Digital Image Recovery and Synthesis II, P. Idell, ed., Proc. SPIE2029, 354–368 (1993). [CrossRef]

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