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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editor: Gregory W. Faris
  • Vol. 4, Iss. 8 — Jul. 30, 2009

Time-domain interpolation for Fourier-domain optical coherence tomography

Yudong Zhang, Xiqi Li, Ling Wei, Kai Wang, Zhihua Ding, and Guohua Shi  »View Author Affiliations

Optics Letters, Vol. 34, Issue 12, pp. 1849-1851 (2009)

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The imaging speed and quality of a Fourier-domain optical-coherence-tomography (FD-OCT) technique is largely limited by the resampling process. A time-domain interpolation approach based on zero padding is proposed that gets a close fall-off but much-reduced imaging time in FD-OCT data processing as compared with the common zero-padding interpolation method. The experimental results obtained with an FD-OCT system using a 2048 pixel line scan camera showed that the fall-off was improved by 2 dB in deep z position and that the processing time was reduced to 468 ms per 400 axial scan lines with a Pentium Dual E2140 computer; that is, a more than 95% reduction compared with the conventional zero-padding approach.

© 2009 Optical Society of America

OCIS Codes
(070.4340) Fourier optics and signal processing : Nonlinear optical signal processing
(110.4500) Imaging systems : Optical coherence tomography
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(110.3010) Imaging systems : Image reconstruction techniques

ToC Category:
Imaging Systems

Original Manuscript: February 25, 2009
Revised Manuscript: April 15, 2009
Manuscript Accepted: April 30, 2009
Published: June 10, 2009

Virtual Issues
Vol. 4, Iss. 8 Virtual Journal for Biomedical Optics

Yudong Zhang, Xiqi Li, Ling Wei, Kai Wang, Zhihua Ding, and Guohua Shi, "Time-domain interpolation for Fourier-domain optical coherence tomography," Opt. Lett. 34, 1849-1851 (2009)

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