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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 19 — Sep. 12, 2011
  • pp: 17951–17959

Coherent noise suppression in digital holography based on flat fielding with apodized apertures

D. G. Abdelsalam and Daesuk Kim  »View Author Affiliations


Optics Express, Vol. 19, Issue 19, pp. 17951-17959 (2011)
http://dx.doi.org/10.1364/OE.19.017951


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Abstract

Great number of approaches has been carried out in digital holography (DH) in order to overcome the problem of coherent noise in the reconstruction process. In this paper, we describe a new method that can be used to suppress the coherent noise in phase-contrast image. The proposed method is a combination of the flat fielding method and the apodized apertures technique. The proposed method is applied to a sample of 200 μ m step height. The quality of the phase-contrast image of the sample is refined and the coherent noise level is reduced drastically by the order of 65%. The proposed method can also applicable to noise reduction of intensity imaging.

© 2011 OSA

OCIS Codes
(100.2000) Image processing : Digital image processing
(100.2980) Image processing : Image enhancement
(100.3010) Image processing : Image reconstruction techniques
(100.5070) Image processing : Phase retrieval
(090.1995) Holography : Digital holography

ToC Category:
Holography

History
Original Manuscript: June 14, 2011
Revised Manuscript: August 16, 2011
Manuscript Accepted: August 18, 2011
Published: August 29, 2011

Citation
D. G. Abdelsalam and Daesuk Kim, "Coherent noise suppression in digital holography based on flat fielding with apodized apertures," Opt. Express 19, 17951-17959 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-19-17951


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