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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 15 — Aug. 1, 2014
  • pp: 4392–4395

Generic pixel-wise speckle detection in Fourier-domain optical coherence tomography images

Anqi Zhang, Jiefeng Xi, Wenxuan Liang, Tianxin Gao, and Xingde Li  »View Author Affiliations


Optics Letters, Vol. 39, Issue 15, pp. 4392-4395 (2014)
http://dx.doi.org/10.1364/OL.39.004392


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Abstract

We present a generic phase-domain processing method for detecting speckles in Fourier-domain optical coherence tomography (OCT) images. The physics behind the interferometry is revisited and analytically along with simulation results it indicates that the speckle formation comes with phase distortion to the complex OCT signal. The first and the second derivatives of phase along the imaging depth are then calculated for speckle identification. The phase-domain processing method was applied to images acquired by both spectral-domain OCT and swept-source OCT systems, and the experimental results show that this method enables pixel-wise speckle identification.

© 2014 Optical Society of America

OCIS Codes
(030.6140) Coherence and statistical optics : Speckle
(030.6600) Coherence and statistical optics : Statistical optics
(110.4500) Imaging systems : Optical coherence tomography
(110.6150) Imaging systems : Speckle imaging
(170.4500) Medical optics and biotechnology : Optical coherence tomography

ToC Category:
Coherence and Statistical Optics

History
Original Manuscript: February 18, 2014
Revised Manuscript: June 7, 2014
Manuscript Accepted: June 9, 2014
Published: July 22, 2014

Virtual Issues
Vol. 9, Iss. 10 Virtual Journal for Biomedical Optics

Citation
Anqi Zhang, Jiefeng Xi, Wenxuan Liang, Tianxin Gao, and Xingde Li, "Generic pixel-wise speckle detection in Fourier-domain optical coherence tomography images," Opt. Lett. 39, 4392-4395 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-15-4392


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