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Non-contact measurement of oxygen saturation with an RGB camera.

ABSTRACT: A novel method (Sophia) is presented to track oxygen saturation changes in a controlled environment using an RGB camera placed approximately 1.5 m away from the subject. The method is evaluated on five healthy volunteers (Fitzpatrick skin phenotypes II, III, and IV) whose oxygen saturations were varied between 80% and 100% in a purpose-built chamber over 40 minutes each. The method carefully selects regions of interest (ROI) in the camera image by calculating signal-to-noise ratios for each ROI. This allows it to track changes in oxygen saturation accurately with respect to a conventional pulse oximeter (median coefficient of determination, 0.85).

SUBMITTER: Guazzi AR

PROVIDER: S-EPMC4574660 | biostudies-other | 2015 Sep

REPOSITORIES: biostudies-other

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Non-contact measurement of oxygen saturation with an RGB camera.

Guazzi Alessandro R AR Villarroel Mauricio M Jorge João J Daly Jonathan J Frise Matthew C MC Robbins Peter A PA Tarassenko Lionel L

Biomedical optics express 20150811 9

A novel method (Sophia) is presented to track oxygen saturation changes in a controlled environment using an RGB camera placed approximately 1.5 m away from the subject. The method is evaluated on five healthy volunteers (Fitzpatrick skin phenotypes II, III, and IV) whose oxygen saturations were varied between 80% and 100% in a purpose-built chamber over 40 minutes each. The method carefully selects regions of interest (ROI) in the camera image by calculating signal-to-noise ratios for each ROI. ...[more]

PMID: 26417504

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