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18 June 2024 Radiometric calibration of a fast diffuse reflectance spectroscopy bench for quantitative photoplethysmography
Augustin Vernay, Guillaume Blanquer, Rémi Gerbelot, Pierre Blandin, Mathieu Perriollat
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Proceedings Volume 13010, Tissue Optics and Photonics III; 130100E (2024) https://doi.org/10.1117/12.3017623
Event: SPIE Photonics Europe, 2024, Strasbourg, France
Abstract
Photopletysmographic methods for cardiovascular parameters monitoring have been extensively investigated. Yet, there is still a lack of consensus on the signals origins and sensors are designed based on qualitative intuitions. We present the radiometric calibration of a versatile optical workbench that allows quantitative multi-spectral reflectance measurements on several distances source/detector simultaneously. We propose here a method to retrieve both incident and outgoing radiant fluxes on the studied medium that paves the way for quantitative diffuse optics on-vivo. Compared to existing designs and methods, we believe our protocol matches well the needs of modern simulation tools dedicated to sensor designs.
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Augustin Vernay, Guillaume Blanquer, Rémi Gerbelot, Pierre Blandin, and Mathieu Perriollat "Radiometric calibration of a fast diffuse reflectance spectroscopy bench for quantitative photoplethysmography", Proc. SPIE 13010, Tissue Optics and Photonics III, 130100E (18 June 2024); https://doi.org/10.1117/12.3017623
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KEYWORDS
Radiometric calibration
Diffuse reflectance spectroscopy
Calibration
Photoplethysmography
Spectrometers
Diffuse optical imaging
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