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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 47, Iss. 19 — Jul. 1, 2008
  • pp: D71–D79

Extended focused imaging for digital holograms of macroscopic three-dimensional objects

Conor P. McElhinney, Bryan M. Hennelly, and Thomas J. Naughton  »View Author Affiliations


Applied Optics, Vol. 47, Issue 19, pp. D71-D79 (2008)
http://dx.doi.org/10.1364/AO.47.000D71


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Abstract

When a digital hologram is reconstructed, only points located at the reconstruction distance are in focus. We have developed a novel technique for creating an in-focus image of the macroscopic objects encoded in a digital hologram. This extended focused image is created by combining numerical reconstructions with depth information extracted by using our depth-from-focus algorithm. To our knowledge, this is the first technique that creates extended focused images of digital holograms encoding macroscopic objects. We present results for digital holograms containing low- and high-contrast macroscopic objects.

© 2008 Optical Society of America

OCIS Codes
(090.0090) Holography : Holography
(090.1760) Holography : Computer holography
(100.0100) Image processing : Image processing
(100.2000) Image processing : Digital image processing
(100.6890) Image processing : Three-dimensional image processing

History
Original Manuscript: October 25, 2007
Revised Manuscript: December 30, 2007
Manuscript Accepted: January 11, 2008
Published: March 10, 2008

Citation
Conor P. McElhinney, Bryan M. Hennelly, and Thomas J. Naughton, "Extended focused imaging for digital holograms of macroscopic three-dimensional objects," Appl. Opt. 47, D71-D79 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-19-D71

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