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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 37, Iss. 16 — Aug. 15, 2012
  • pp: 3468–3470

Generalized phase evaluation for stereophotogrammetric correspondence assignment

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


Optics Letters, Vol. 37, Issue 16, pp. 3468-3470 (2012)
http://dx.doi.org/10.1364/OL.37.003468


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Abstract

Phase-shifting fringe projection is the primary structured illumination method for high-accuracy, three-dimensional (3D) shape measurements in the fields of profilometry and stereophotogrammetry. Many different schemes for the phase evaluation and the phase-shifted fringe pattern design exist. Here we focus on the role of the phase evaluation in the context of stereophotogrammetry, where the nominal phase value itself is merely used as an image feature that can be exploited to establish a correspondence between the two camera views. Starting from the classical phase evaluation function, we will discuss its essential properties for a highly accurate correspondence mapping. Based on the findings, we generalize the classical function to derive a generalized phase value for a sequence of stereo images. An experimental comparison between a correspondence assignment using the classical phase evaluation function and a specifically chosen general phase evaluation function is given.

© 2012 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: May 28, 2012
Revised Manuscript: July 6, 2012
Manuscript Accepted: July 6, 2012
Published: August 15, 2012

Citation
Marcus Große, Martin Schaffer, Bastian Harendt, and Richard Kowarschik, "Generalized phase evaluation for stereophotogrammetric correspondence assignment," Opt. Lett. 37, 3468-3470 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-16-3468

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