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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 42, Iss. 32 — Nov. 10, 2003
  • pp: 6458–6464

Digital shearing method for three-dimensional data extraction in holographic particle image velocimetry

Hui Yang, Neil Halliwell, and Jeremy Coupland  »View Author Affiliations


Applied Optics, Vol. 42, Issue 32, pp. 6458-6464 (2003)
http://dx.doi.org/10.1364/AO.42.006458


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Abstract

We report a new digital shearing method for extracting the three-dimensional displacement vector data from double-exposure holograms. With this method we can manipulate both the phase and the amplitude of the recorded signal, which, like optical correlation analysis, is inherently immune to imaging aberration. However, digital shearing is not a direct digital implementation of optical correlation, and a considerable saving in computation time results. We demonstrate the power of the method by matlab simulation and discuss its performance with reference to optical analysis.

© 2003 Optical Society of America

OCIS Codes
(070.5040) Fourier optics and signal processing : Phase conjugation
(090.2880) Holography : Holographic interferometry
(100.2650) Image processing : Fringe analysis
(100.5010) Image processing : Pattern recognition
(350.4990) Other areas of optics : Particles

History
Original Manuscript: December 18, 2002
Revised Manuscript: June 3, 2003
Published: November 10, 2003

Citation
Hui Yang, Neil Halliwell, and Jeremy Coupland, "Digital shearing method for three-dimensional data extraction in holographic particle image velocimetry," Appl. Opt. 42, 6458-6464 (2003)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-42-32-6458

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