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Proceedings Paper

Real-time inverse scattering for optical coherence tomography
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Paper Abstract

We have developed and implemented a system which can acquire, process, and display the inverse scattering solution for optical coherence tomography (OCT) in real-time at frame rates of 2.25 fps for 512 X 1024 images. Frames which previously required 60 s, now take under 500 ms, an improvement in processing speed by a factor of over 120 times. An efficient routine was designed which requires two interpolations of the columns, one one-dimensional real-to-complex fast Fourier transform (FFT) of the columns, and two two-dimensional FFTs. The limits to speed are now reliant on the parallelizability of the processing hardware. Our system provides quantitatively meaningful structural information from previously indistinguishable scattering intensities and provides proof of feasibility for future real-time systems.

Paper Details

Date Published: 15 February 2007
PDF: 11 pages
Proc. SPIE 6446, Biomedical Applications of Light Scattering, 644608 (15 February 2007); doi: 10.1117/12.699285
Show Author Affiliations
Tyler S. Ralston, Univ. of Illinois at Urbana-Champaign (United States)
Daniel L. Marks, Univ. of Illinois at Urbana-Champaign (United States)
P. Scott Carney, Univ. of Illinois at Urbana-Champaign (United States)
Stephen A. Boppart M.D., Univ. of Illinois at Urbana-Champaign (United States)

Published in SPIE Proceedings Vol. 6446:
Biomedical Applications of Light Scattering
Adam Wax; Vadim Backman, Editor(s)

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