Correlation of near-infrared intensity and depth channels for remote vital signs monitoring

Ryan Chu; Lindsay Kuramoto; Dene Ringuette; Eric Zhu; Ofer Levi

doi:10.1117/12.2578580

5 March 2021 Correlation of near-infrared intensity and depth channels for remote vital signs monitoring

Ryan Chu, Lindsay Kuramoto, Dene Ringuette, Eric Zhu, Ofer Levi

Proceedings Volume 11651, Optical Diagnostics and Sensing XXI: Toward Point-of-Care Diagnostics; 116510F (2021) https://doi.org/10.1117/12.2578580
Event: SPIE BiOS, 2021, Online Only

Abstract

We present a camera-based approach for remote acquisition of vital signs. Remote photoplethysmography (PPG) and 3-D depth analysis are used to detect heart rate and respiratory rate robustly and independently. By comparing the intensity/PPG and depth channels, a correlation can be observed between face PPG signal and physiological body movement. Pulsatile activity results in periodic head motion, which is correlated with fluctuations in face PPG intensity. Respiration data can be obtained from face PPG intensity as well as face and chest motion. This system is illumination and motion tolerant and has the benefit of redundancy with two independent image channels.

Conference Presentation

Citation Download Citation

Ryan Chu, Lindsay Kuramoto, Dene Ringuette, Eric Zhu, and Ofer Levi "Correlation of near-infrared intensity and depth channels for remote vital signs monitoring", Proc. SPIE 11651, Optical Diagnostics and Sensing XXI: Toward Point-of-Care Diagnostics, 116510F (5 March 2021); https://doi.org/10.1117/12.2578580

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