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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 12 — Jun. 15, 2014
  • pp: 3678–3681

Dynamic 3D imaging based on acousto-optic heterodyne fringe interferometry

Yingjian Guan, Yongkai Yin, Ameng Li, Xiaoli Liu, and Xiang Peng  »View Author Affiliations


Optics Letters, Vol. 39, Issue 12, pp. 3678-3681 (2014)
http://dx.doi.org/10.1364/OL.39.003678


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Abstract

An acoustic-optics heterodyne fringe interferometry coupled with a three-camera system is developed for dynamic 3D imaging. In this system, first-order beams with a slight frequency difference diffracted from two acousto-optic deflectors (AODs) form a beat intensity fringe pattern. Setting the frequency of the trigger signal for the CCD cameras into four times the beat frequency, four-step phase-shifting fringe patterns can be obtained, and the wrapped phase map (WPM) can be calculated. Under the epipolar constraint among three cameras, the homologous points can be determined unambiguously with the assistant of a WPM; thus the 3D shape can be reconstructed while skipping the phase unwrapping step. Experimental results are presented to validate this approach.

© 2014 Optical Society of America

OCIS Codes
(110.6880) Imaging systems : Three-dimensional image acquisition
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(150.6910) Machine vision : Three-dimensional sensing
(230.1040) Optical devices : Acousto-optical devices

ToC Category:
Optical Devices

History
Original Manuscript: March 24, 2014
Revised Manuscript: May 8, 2014
Manuscript Accepted: May 8, 2014
Published: June 13, 2014

Virtual Issues
Vol. 9, Iss. 8 Virtual Journal for Biomedical Optics

Citation
Yingjian Guan, Yongkai Yin, Ameng Li, Xiaoli Liu, and Xiang Peng, "Dynamic 3D imaging based on acousto-optic heterodyne fringe interferometry," Opt. Lett. 39, 3678-3681 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-12-3678


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