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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Editor: Stephen A. Burns
  • Vol. 26, Iss. 5 — May. 1, 2009
  • pp: 1195–1201

Eliminating the zero spectrum in Fourier transform profilometry using empirical mode decomposition

Sikun Li, Xianyu Su, Wenjing Chen, and Liqun Xiang  »View Author Affiliations

JOSA A, Vol. 26, Issue 5, pp. 1195-1201 (2009)

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Empirical mode decomposition is introduced into Fourier transform profilometry to extract the zero spectrum included in the deformed fringe pattern without the need for capturing two fringe patterns with π phase difference. The fringe pattern is subsequently demodulated using a standard Fourier transform profilometry algorithm. With this method, the deformed fringe pattern is adaptively decomposed into a finite number of intrinsic mode functions that vary from high frequency to low frequency by means of an algorithm referred to as a sifting process. Then the zero spectrum is separated from the high-frequency components effectively. Experiments validate the feasibility of this method.

© 2009 Optical Society of America

OCIS Codes
(070.4790) Fourier optics and signal processing : Spectrum analysis
(100.5070) Image processing : Phase retrieval
(070.2025) Fourier optics and signal processing : Discrete optical signal processing
(070.2615) Fourier optics and signal processing : Frequency filtering

ToC Category:
Fourier Optics and Signal Processing

Original Manuscript: November 12, 2008
Manuscript Accepted: March 16, 2009
Published: April 16, 2009

Sikun Li, Xianyu Su, Wenjing Chen, and Liqun Xiang, "Eliminating the zero spectrum in Fourier transform profilometry using empirical mode decomposition," J. Opt. Soc. Am. A 26, 1195-1201 (2009)

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