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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 13, Iss. 4 — Apr. 1, 1996
  • pp: 832–843

Efficient nonlinear algorithm for envelope detection in white light interferometry

Kieran G. Larkin  »View Author Affiliations


JOSA A, Vol. 13, Issue 4, pp. 832-843 (1996)
http://dx.doi.org/10.1364/JOSAA.13.000832


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Abstract

A compact and efficient algorithm for digital envelope detection in white light interferograms is derived from a well-known phase-shifting algorithm. The performance of the new algorithm is compared with that of other schemes currently used. Principal criteria considered are computational efficiency and accuracy in the presence of miscalibration. The new algorithm is shown to be near optimal in terms of computational efficiency and can be represented as a second-order nonlinear filter. In combination with a carefully designed peak detection method the algorithm exhibits exceptionally good performance on simulated interferograms.

© 1996 Optical Society of America

History
Original Manuscript: October 11, 1994
Revised Manuscript: October 25, 1995
Manuscript Accepted: September 19, 1995
Published: April 1, 1996

Citation
Kieran G. Larkin, "Efficient nonlinear algorithm for envelope detection in white light interferometry," J. Opt. Soc. Am. A 13, 832-843 (1996)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-13-4-832

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