دورية أكاديمية
Heartbeat Interval Error Compensation Method for Low Sampling Rates Photoplethysmography Sensors
| العنوان: | Heartbeat Interval Error Compensation Method for Low Sampling Rates Photoplethysmography Sensors |
|---|---|
| المؤلفون: | Watanabe, Kento, Izumi, Shintaro, Yano, Yuji, Kawaguchi, Hiroshi, Yoshimoto, Masahiko |
| بيانات النشر: | Institute of Electronics, Information and Communication Engineers(IEICE) |
| سنة النشر: | 2020 |
| المجموعة: | Kobe University Repository (Kernel) / 神戸大学学術成果リポジトリ |
| مصطلحات موضوعية: | error compensation, heartbeat, heart rate variability analysis, sampling error, photoplethysmography (PPG) |
| الوصف: | This study presents a method for improving the heartbeat interval accuracy of photoplethysmographic (PPG) sensors at ultra-low sampling rates. Although sampling rate reduction can extend battery life, it increases the sampling error and degrades the accuracy of the extracted heartbeat interval. To overcome these drawbacks, a sampling-error compensation method is proposed in this study. The sampling error is reduced by using linear interpolation and autocorrelation based on the waveform similarity of heartbeats in PPG. Furthermore, this study introduces two-line approximation and first derivative PPG (FDPPG) to improve the waveform similarity at ultra-low sampling rates. The proposed method was evaluated using measured PPG and reference electrocardiogram (ECG) of seven subjects. The results reveal that the mean absolute error (MAE) of 4.11ms was achieved for the heartbeat intervals at a sampling rate of 10Hz, compared with 1-kHz ECG sampling. The heartbeat interval error was also evaluated based on a heart rate variability (HRV) analysis. Furthermore, the mean absolute percentage error (MAPE) of the low-frequency/high-frequency (LF/HF) components obtained from the 10-Hz PPG is shown to decrease from 38.3% to 3.3%. This error is small enough for practical HRV analysis. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | info:doi/10.1587/transcom.2019HMP0002; 130007850039 |
| الإتاحة: | http://www.lib.kobe-u.ac.jp/handle_kernel/90007349Test http://www.lib.kobe-u.ac.jp/repository/90007349.pdfTest |
| حقوق: | © 2020 The Institute of Electronics, Information and Communication Engineers |
| رقم الانضمام: | edsbas.9BEF7DD1 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |