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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 36, Iss. 22 — Aug. 1, 1997
  • pp: 5347–5354

Frequency-multiplex Fourier-transform profilometry: a single-shot three-dimensional shape measurement of objects with large height discontinuities and/or surface isolations

Mitsuo Takeda, Quan Gu, Masaya Kinoshita, Hideaki Takai, and Yosuke Takahashi  »View Author Affiliations


Applied Optics, Vol. 36, Issue 22, pp. 5347-5354 (1997)
http://dx.doi.org/10.1364/AO.36.005347


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Abstract

The performance of Fourier-transform profilometry is enhanced by a new technique that is based on spatial frequency multiplexing combined with the Gushov–Solodkin phase unwrapping algorithm. The technique permits the three-dimensional shape measurement of objects that have discontinuous height steps and/or spatially isolated surfaces, which has not been possible by conventional Fourier-transform profilometry. An important feature of the technique is that it requires only a single fringe pattern; the single-shot recording makes possible the instantaneous three-dimensional shape measurement of discontinuous objects in fast motion. Experimental results are presented that demonstrate the validity of the principle.

© 1997 Optical Society of America

History
Original Manuscript: January 2, 1997
Revised Manuscript: April 7, 1997
Published: August 1, 1997

Citation
Mitsuo Takeda, Quan Gu, Masaya Kinoshita, Hideaki Takai, and Yosuke Takahashi, "Frequency-multiplex Fourier-transform profilometry: a single-shot three-dimensional shape measurement of objects with large height discontinuities and/or surface isolations," Appl. Opt. 36, 5347-5354 (1997)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-36-22-5347

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