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

Volume

13

Issue

6

fYear

2009

Firstpage

1085

Lastpage

1088

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;

fLanguage

English

Journal_Title

Information Technology in Biomedicine, IEEE Transactions on

Publisher

ieee

ISSN

1089-7771

Type

jour

DOI

10.1109/TITB.2009.2031108

Filename

5256146