Share Email Print

Proceedings Paper

Using nonequispaced fast Fourier transformation to process optical coherence tomography signals
Author(s): Dierck Hillmann; Gereon Hüttmann; Peter Koch
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

In OCT imaging the spectra that are used for Fourier transformation are in general not acquired linearly in k-space. Therefore one needs to apply an algorithm to re-sample the data and finally do the Fourier Transformation to gain depth information. We compare three algorithms (Non-Equispaced DFT, interpolated FFT and Non-Equispaced FFT) for this purpose in terms of speed and accuracy. The optimal algorithm depends on the OCT device (speed, SNR) and the object.

Paper Details

Date Published: 16 July 2009
PDF: 6 pages
Proc. SPIE 7372, Optical Coherence Tomography and Coherence Techniques IV, 73720R (16 July 2009); doi: 10.1117/12.831789
Show Author Affiliations
Dierck Hillmann, Thorlabs HL AG (Germany)
Gereon Hüttmann, Institut für Biomedizinische Optik (Germany)
Peter Koch, Thorlabs HL AG (Germany)

Published in SPIE Proceedings Vol. 7372:
Optical Coherence Tomography and Coherence Techniques IV
Peter E. Andersen; Brett E. Bouma, Editor(s)

© SPIE. Terms of Use
Back to Top