NDLI: Fundamental study of measurement of cardiorespiratory signals in a sitting position using piezoelectric sensors

Content Provider	IEEE Xplore Digital Library
Author	Igasaki, T. Yoshikawa, K. Murayama, N.
Copyright Year	2013
Description	Author affiliation: Dept. of Inf. Technol. on Human & Environ. Sci., Kumamoto Univ., Kumamoto, Japan (Igasaki, T.; Yoshikawa, K.; Murayama, N.)
Abstract	In this paper, we propose a measurement system to extract the heartbeat and respiration signals from piezoelectric sensors located in a chair seat. Eight healthy male subjects (22-26 years old) sat on a chair with piezoelectric sensors. The experiment consisted of five acquisitions (300 s recording with 30 s resting). In the 1st acquisition, the subject was instructed to maintain a relax state. During the next three acquisitions, the subject maintained respiration rates of 3, 4, and 5 s. The order was randomly given for each subject. Finally, the subject was instructed to stay in a resting state for 300 s. Band-pass filters were used to separate the heartbeat and respiration signals from the output signal of the piezoelectric sensors (heartbeat: 0.7-7 Hz, respiration: 0.1-0.4 Hz). Then, the standard heartbeat interval was calculated using the autocorrelation function to generate a template. Heartbeat and respiration signals were extracted using a two-dimensional cross-correlation pattern matching method. For validation, the error ratio between the piezoelectric sensor data and the reference data was determined. The error ratios of the heartbeat interval and respiration interval were 2.89±4.41% and 5.57±4.42%, respectively. Therefore, it is suggested that heartbeat and respiration signals extracted from piezoelectric sensors in a sitting position can be used as an alternative method for extracting biological signals.
Starting Page	3841
Ending Page	3844
File Size	1548607
Page Count	4
File Format	PDF
ISBN	9781457702167
ISSN	1557170X
DOI	10.1109/EMBC.2013.6610382
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-07-03
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Sensors Heart beat Electrocardiography Standards Heart rate variability Monitoring Position measurement
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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