Camera Measurement of Blood Oxygen Saturation
Journal:
arXiv
Published Date:
Mar 3, 2025
Abstract
Blood oxygen saturation (SpO2) is a crucial vital sign routinely monitored in
medical settings. Traditional methods require dedicated contact sensors,
limiting accessibility and comfort. This study presents a deep learning
framework for contactless SpO2 measurement using an off-the-shelf camera,
addressing challenges related to lighting variations and skin tone diversity.
We conducted two large-scale studies with diverse participants and evaluated
our method against traditional signal processing approaches in intra- and
inter-dataset scenarios. Our approach demonstrated consistent accuracy across
demographic groups, highlighting the feasibility of camera-based SpO2
monitoring as a scalable and non-invasive tool for remote health assessment.
