Efficient signal processing in spectroscopic optical coherence tomography

Maciej Kraszewski; Michał Trojanowski; Marcin R. Strąkowski

doi:10.1117/12.2079763

10 March 2015 Efficient signal processing in spectroscopic optical coherence tomography

Maciej Kraszewski, Michał Trojanowski, Marcin R. Strąkowski

Proceedings Volume 9333, Biomedical Applications of Light Scattering IX; 93330V (2015) https://doi.org/10.1117/12.2079763
Event: SPIE BiOS, 2015, San Francisco, California, United States

Abstract

Spectroscopic optical coherence tomography (SOCT) is an extension of a standard OCT technique, which allows to obtain depth-resolved, spectroscopic information on the examined sample. It can be used as a source of additional contrast in OCT images e.g. by encoding certain features of the light spectrum into the hue of the image pixels. However, SOCT require computation of time-frequency distributions of each OCT A-scan, what is a very time consuming procedure. This is particularly important in a real-time OCT imaging. Here, we present a new approach to SOCT signal processing that allows for nearly tenfold reduction of a required computation time. The presented approach is based on a recursive analysis of OCT scan in time-domain without necessity of computing neither short-time Fourier transform or any other time-frequency distribution.

Citation Download Citation

Maciej Kraszewski, Michał Trojanowski, and Marcin R. Strąkowski "Efficient signal processing in spectroscopic optical coherence tomography", Proc. SPIE 9333, Biomedical Applications of Light Scattering IX, 93330V (10 March 2015); https://doi.org/10.1117/12.2079763

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