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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 45, Iss. 5 — Feb. 10, 2006
  • pp: 944–952

Direct extraction of the mean particle size from a digital hologram

Loïc Denis, Corinne Fournier, Thierry Fournel, Christophe Ducottet, and Dominique Jeulin  »View Author Affiliations


Applied Optics, Vol. 45, Issue 5, pp. 944-952 (2006)
http://dx.doi.org/10.1364/AO.45.000944


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Abstract

Digital holography, which consists of both acquiring the hologram image in a digital camera and numerically reconstructing the information, offers new and faster ways to make the most of a hologram. We describe a new method to determine the rough size of particles in an in-line hologram. This method relies on a property that is specific to interference patterns in Fresnel holograms: Self-correlation of a hologram provides access to size information. The proposed method is both simple and fast and gives results with acceptable precision. It suppresses all the problems related to the numerical depth of focus when large depth volumes are analyzed.

© 2006 Optical Society of America

OCIS Codes
(090.1760) Holography : Computer holography
(100.2000) Image processing : Digital image processing
(110.2960) Imaging systems : Image analysis
(120.3940) Instrumentation, measurement, and metrology : Metrology
(120.7250) Instrumentation, measurement, and metrology : Velocimetry

ToC Category:
Applications

History
Original Manuscript: May 23, 2005
Revised Manuscript: August 30, 2005
Manuscript Accepted: August 30, 2005

Citation
Loïc Denis, Corinne Fournier, Thierry Fournel, Christophe Ducottet, and Dominique Jeulin, "Direct extraction of the mean particle size from a digital hologram," Appl. Opt. 45, 944-952 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-5-944

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