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30 December 2019 Light source spectra effects on optical coherence tomography A-scans
A. Guan, S. Hinckley, S. Richardson
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Proceedings Volume 11202, Biophotonics Australasia 2019; 1120216 (2019) https://doi.org/10.1117/12.2539595
Event: ANZCOP, 2019, Melbourne, Australia
Abstract
In this study, we have simulated the effect of light sources with different spectral output functions on the generation of A-scans in optical coherence tomography using a fundamental physics-based interferometric model. Many different source function were examined, and compared to a standard Gaussian source. These sources included truncated Gaussians, multiple Gaussians, other non-Gaussian, Lorentzian, square and triangular sources. Only the pure Gaussian source produced A-scans without false artefacts such as satellite peaks, that could produce misinterpretation of real OCT images that may be used for patient diagnosis. A triangular source produces the next best response with small extraneous peaks, whereas all other sources have significant false artefacts present in their A-scans.
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A. Guan, S. Hinckley, and S. Richardson "Light source spectra effects on optical coherence tomography A-scans", Proc. SPIE 11202, Biophotonics Australasia 2019, 1120216 (30 December 2019); https://doi.org/10.1117/12.2539595
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KEYWORDS
Light sources
Optical coherence tomography
Image processing
Fourier transforms
Computer simulations
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