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. 2023 Nov 23;28(11):115002. doi: 10.1117/1.JBO.28.11.115002

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© 2023 The Authors

Published by SPIE under a Creative Commons Attribution 4.0 International License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Fig. 5 — (a) Clean $Δ OD$ at ${SaO}_{2} = 100 %$ (yellow square) and three examples of noisy $Δ OD$ (green circle). (b) ${SpO}_{2}$ extraction results from the self-calibrated algorithm using two (blue circle) versus eight (red triangle) wavelengths.