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Optics Letters

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  • Vol. 36, Iss. 19 — Oct. 1, 2011
  • pp: 3798–3800

Fringe localization using focus measure

J. C. Filipinas and P. F. Almoro  »View Author Affiliations


Optics Letters, Vol. 36, Issue 19, pp. 3798-3800 (2011)
http://dx.doi.org/10.1364/OL.36.003798


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Abstract

A method for automated evaluation of fringe localization using focus measure is demonstrated experimentally. Dual-illumination digital holographic interferometry is used to generate phase difference maps (PDMs) of a rough test object. Focus measure values of the PDMs along the axial direction (increment: 10 λ = 6.33 μm ) yield an inverted bell-shaped curve which, in turn, facilitates the characterizations of the plane and region of fringe localization. The method can be applied in the distance measurement of rough objects and in the optimization of fringe visibility.

© 2011 Optical Society of America

OCIS Codes
(100.3010) Image processing : Image reconstruction techniques
(100.6890) Image processing : Three-dimensional image processing
(120.2650) Instrumentation, measurement, and metrology : Fringe analysis
(120.2880) Instrumentation, measurement, and metrology : Holographic interferometry
(350.5730) Other areas of optics : Resolution
(090.1995) Holography : Digital holography

ToC Category:
Holography

History
Original Manuscript: June 9, 2011
Revised Manuscript: August 11, 2011
Manuscript Accepted: September 1, 2011
Published: September 23, 2011

Citation
J. C. Filipinas and P. F. Almoro, "Fringe localization using focus measure," Opt. Lett. 36, 3798-3800 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-19-3798

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Supplementary Material


» Media 1: AVI (2141 KB)     

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