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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Editor: Franco Gori
  • Vol. 27, Iss. 3 — Mar. 1, 2010
  • pp: 415–421

Signal processing for sidelobe suppression in optical coherence tomography images

Yingli Wang, Yanmei Liang, and Kuanhong Xu  »View Author Affiliations

JOSA A, Vol. 27, Issue 3, pp. 415-421 (2010)

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In an optical coherence tomography system, the sidelobes of the point-spread function (PSF) introduced from the optical source reduce the A-scan imaging resolution and contrast of the images. A gradual iterative signal subtraction method based on the study of a point signal influenced by other points with different distances through the PSF is proposed in this paper. Comparing with the CLEAN algorithm and two typical deconvolution methods, the processed results demonstrate this algorithm can reduce sidelobes effectively with the least runtime. It is also found that it is insensitive to noise while slightly improving the longitudinal resolution, which shows this algorithm is good for improving image quality.

© 2010 Optical Society of America

OCIS Codes
(070.6110) Fourier optics and signal processing : Spatial filtering
(110.4500) Imaging systems : Optical coherence tomography
(070.2025) Fourier optics and signal processing : Discrete optical signal processing

ToC Category:
Imaging Systems

Original Manuscript: July 24, 2009
Revised Manuscript: December 10, 2009
Manuscript Accepted: December 17, 2009
Published: February 11, 2010

Virtual Issues
Vol. 5, Iss. 6 Virtual Journal for Biomedical Optics

Yingli Wang, Yanmei Liang, and Kuanhong Xu, "Signal processing for sidelobe suppression in optical coherence tomography images," J. Opt. Soc. Am. A 27, 415-421 (2010)

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