Open Access
13 February 2015 One specific velocity color mapping using optical coherence tomography
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Abstract
Depth resolved coherence gating along with Doppler shift detection of the carrier frequency is used for one predetermined velocity mapping in different flows. Bidirectional rapid scanning optical delay of optical coherence tomography system is applied in the reference arm. Tilted capillary entry is used as a hydrodynamic phantom to model a sign-variable flow with complex geometry. Structural and one specific velocity images are obtained from the scanning interferometer signal processing in the frequency domain using analog and digital filtering. A standard structural image is decomposed into three parts: stationary object, and positive and negative velocity distributions. The latter two show equivelocity maps of the flow. The final image is represented as the complexation of the three.
CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
Sergey G. Proskurin, Anton Y. Potlov, and Sergey V. Frolov "One specific velocity color mapping using optical coherence tomography," Journal of Biomedical Optics 20(5), 051034 (13 February 2015). https://doi.org/10.1117/1.JBO.20.5.051034
Published: 13 February 2015
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CITATIONS
Cited by 3 scholarly publications.
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KEYWORDS
Doppler tomography

Optical coherence tomography

Signal processing

Bandpass filters

Capillaries

Doppler effect

Analog electronics

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