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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. 7, Iss. 6 — May. 25, 2012

Computation time-saving mirror image suppression method in Fourier-domain optical coherence tomography

Chiung-Ting Wu, Ting-Ta Chi, Yean-Woei Kiang, and C. C. Yang  »View Author Affiliations


Optics Express, Vol. 20, Issue 8, pp. 8270-8283 (2012)
http://dx.doi.org/10.1364/OE.20.008270


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Abstract

The theory and experimental results of a computation time-saving mirror image suppression method in Fourier-domain optical coherence tomography, which utilizes the property of reversed system phase shift between the real and mirror images, for differentiating one from the other are demonstrated. By solving a set of two equations based on a reasonable approximation, the real image signal can be obtained. The theoretical backgrounds and the improved real image quality of the average and iteration procedures in this method are particularly illustrated. Also, the mirror image suppression ratios under various process conditions, including different process iteration numbers and different system phase shifts between two neighboring A-mode scans, are evaluated. Meanwhile, the mirror image suppression results based on our method are compared with those obtained from the widely used BM-scan technique. It is found that when a process procedure of two iterations is used, the mirror image suppression quality based on our method can be higher than that obtained from the BM-scan technique. The computation time of our method is significantly shorter than that of the BM-scan technique.

© 2012 OSA

OCIS Codes
(110.4500) Imaging systems : Optical coherence tomography
(170.3880) Medical optics and biotechnology : Medical and biological imaging

ToC Category:
Imaging Systems

History
Original Manuscript: January 6, 2012
Revised Manuscript: February 21, 2012
Manuscript Accepted: February 21, 2012
Published: March 26, 2012

Virtual Issues
Vol. 7, Iss. 6 Virtual Journal for Biomedical Optics

Citation
Chiung-Ting Wu, Ting-Ta Chi, Yean-Woei Kiang, and C. C. Yang, "Computation time-saving mirror image suppression method in Fourier-domain optical coherence tomography," Opt. Express 20, 8270-8283 (2012)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=oe-20-8-8270


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