OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 46, Iss. 25 — Sep. 1, 2007
  • pp: 6291–6296

Use of an intensity threshold to improve the visibility of ghost images produced by incoherent light

Lorenzo Basano and Pasquale Ottonello  »View Author Affiliations


Applied Optics, Vol. 46, Issue 25, pp. 6291-6296 (2007)
http://dx.doi.org/10.1364/AO.46.006291


View Full Text Article

Enhanced HTML    Acrobat PDF (1267 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

In thermal light ghost imaging, the transparent mask, located in the object arm of the optical setup, is numerically reconstructed by correlating the speckle patterns acquired by the video camera with the output of a bucket detector placed behind the mask. We show that the visibility of images can be significantly improved by discarding every speckle pattern whose bucket output falls below a certain threshold. We also demonstrate that the efficiency of the conventional method strongly decreases when the speckle statistics deviate from the negative exponential, whereas the threshold method is more robust against changes in the statistical distribution of the speckle intensity. We also provide reasonable statistical explanations for these results.

© 2007 Optical Society of America

OCIS Codes
(030.4280) Coherence and statistical optics : Noise in imaging systems
(100.0100) Image processing : Image processing

ToC Category:
Coherence and Statistical Optics

History
Original Manuscript: February 27, 2007
Revised Manuscript: June 19, 2007
Manuscript Accepted: July 2, 2007
Published: August 23, 2007

Citation
Lorenzo Basano and Pasquale Ottonello, "Use of an intensity threshold to improve the visibility of ghost images produced by incoherent light," Appl. Opt. 46, 6291-6296 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-25-6291

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited