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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 8, Iss. 1 — Feb. 4, 2013

Accelerated autofocusing of off-axis holograms using critical sampling

M. Fatih Toy, Jonas Kühn, Stéphane Richard, Jérôme Parent, Marcel Egli, and Christian Depeursinge  »View Author Affiliations


Optics Letters, Vol. 37, Issue 24, pp. 5094-5096 (2012)
http://dx.doi.org/10.1364/OL.37.005094


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Abstract

In this Letter we propose a fast off-axis hologram autofocusing (AF) approach that is based on the redundant data elimination by the critical resampling of the contained complex field. Implementation of the proposed methodology enables the real-time AF with up to 12 × speed-up factors in comparison to the classical approach. The method is further extended for single-shot physical autofocus of the fluorescence imaging channel of multimodal imaging instruments capable of off-axis hologram acquisition.

© 2012 Optical Society of America

OCIS Codes
(090.2880) Holography : Holographic interferometry
(110.0180) Imaging systems : Microscopy
(180.2520) Microscopy : Fluorescence microscopy
(090.1995) Holography : Digital holography
(090.5694) Holography : Real-time holography

ToC Category:
Holography

History
Original Manuscript: September 12, 2012
Revised Manuscript: November 5, 2012
Manuscript Accepted: November 8, 2012
Published: December 6, 2012

Virtual Issues
Vol. 8, Iss. 1 Virtual Journal for Biomedical Optics

Citation
M. Fatih Toy, Jonas Kühn, Stéphane Richard, Jérôme Parent, Marcel Egli, and Christian Depeursinge, "Accelerated autofocusing of off-axis holograms using critical sampling," Opt. Lett. 37, 5094-5096 (2012)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ol-37-24-5094


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