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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 11 — Apr. 10, 2013
  • pp: 2306–2311

Coherent two-beam interference fringe projection for highspeed three-dimensional shape measurements

Martin Schaffer, Marcus Große, Bastian Harendt, and Richard Kowarschik  »View Author Affiliations


Applied Optics, Vol. 52, Issue 11, pp. 2306-2311 (2013)
http://dx.doi.org/10.1364/AO.52.002306


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Abstract

Two-beam interference is a fundamental and well-understood approach to create Fizeau’s interference fringes. With a Mach–Zehnder interferometer, we utilize these two-beam interference Fizeau fringes for three-dimensional (3D) shape measurements. By introducing an acousto-optical deflector the phase of the interference fringes can be shifted with a rate of up to 200,000 Hz. When used in conjunction with highspeed cameras, this stereo-photogrammetric approach performs well for highspeed applications in comparison with the commonly used digital light processing projectors for stripe projection. Maximum speed and the achievable accuracy are discussed. Experiments and media substantiate the suitability, accuracy, and speed of this technique for very fast 3D shape measurements.

© 2013 Optical Society of America

OCIS Codes
(100.6890) Image processing : Three-dimensional image processing
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.3940) Instrumentation, measurement, and metrology : Metrology
(120.4630) Instrumentation, measurement, and metrology : Optical inspection
(150.6910) Machine vision : Three-dimensional sensing

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: December 6, 2012
Revised Manuscript: March 4, 2013
Manuscript Accepted: March 5, 2013
Published: April 4, 2013

Citation
Martin Schaffer, Marcus Große, Bastian Harendt, and Richard Kowarschik, "Coherent two-beam interference fringe projection for highspeed three-dimensional shape measurements," Appl. Opt. 52, 2306-2311 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-11-2306


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References

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