Title :
Photoplethysmogram Measurement Without Direct Skin-to-Sensor Contact Using an Adaptive Light Source Intensity Control
Author :
Baek, Hyun Jae ; Chung, Gih Sung ; Kim, Ko Keun ; Kim, Jung Soo ; Park, Kwang Suk
Author_Institution :
Grad. Program in Bioeng., Seoul Nat. Univ., Seoul, South Korea
Abstract :
We developed a chair-attached, nonintrusive photoplethysmogram (PPG) measuring system for everyday life, unconstrained monitoring using nonskin-contacting sensor-amplifier circuits capable of emitting suitable light intensity adaptable to clothing characteristics. Comparison between proposed and conventional systems showed reasonable correlation and root-mean-squared error levels, indicating its feasibility for unconstrained PPG monitoring.
Keywords :
biomedical optical imaging; light sources; medical signal detection; patient monitoring; plethysmography; PPG; adaptive light source intensity control; chair-attached photoplethysmogram; light intensity; nonintrusive photoplethysmogram; nonskin-contacting sensor-amplifier circuits; photoplethysmogram measurement; skin-to-sensor contact; Adaptive light intensity control; indirect contact sensor; photoplethysmogram (PPG) monitoring; unconstrained measurement; Clothing; Equipment Design; Humans; Monitoring, Physiologic; Photoplethysmography; Reproducibility of Results; Signal Processing, Computer-Assisted;
Journal_Title :
Information Technology in Biomedicine, IEEE Transactions on
DOI :
10.1109/TITB.2009.2031108
