전기학회논문지 (The Transactions of The Korean Institute of Electrical Engineers)

  • 제65권8호
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  • Pages.1418-1423
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  • 2016
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  • 1975-8359(pISSN)
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  • 2287-4364(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
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보간 방법에 따른 언더샘플링된 광용적맥파 복원 가능성 평가

Reconstruction of the Undersampled Photoplethysmogram with Various Interpolation Methods

  • Shin, Hangsik (Department of Biomedical Engineering, Chonnam National University) ;
  • Kim, Hoon (School of Mechanical Design Engineering, Chonnam National University)
  • 투고 : 2016.06.20
  • 심사 : 2016.07.11
  • 발행 : 2016.08.01
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초록

The purpose of this research is to investigate the effect of sampling frequency on the photoplethysmography (PPG) and to evaluate the performance of interpolation methods for under-sampled PPG. We generated down-sampled PPG using 10 kHz-sampled PPG then evaluated waveshape changes with correlation coefficient. Correlation coefficient was significantly decreased at 50 Hz or below sampling frequency. We interpolated the down-sampled PPG using four interpolation method-linear, nearest, cubic spline and piecewise cubic Hermitt interpolation polynomial - then evaluated interpolation performance. As a result, it was shown that PPG waveform that was sampled over 20 Hz could be reconstructed by interpolation. Among interpolation methods, cubic spline interpolation showed the highest performance. However, every interpolation method has no or less effect on 5 Hz sampled PPG.

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참고문헌

  1. K.-L. Foh, "Integrating Healthcare: The Role and Value of Mobile Operators in eHealth," GSMA mHealth Programme, May. 2012.
  2. PwC, "mHealth insights: The global mHealth market opportunity and sustainable reimbursement models," July, 2013.
  3. J. Allen, "Photoplethysmography and its application in clinical physiological measurement." Physiol meas, vol. 28, no. 3, pp. R1-39, 2007. https://doi.org/10.1088/0967-3334/28/3/R01
  4. C. Alippi, G. Anastasi, M.D. Francesco, M. Roveri, "An adaptive sampling algorithm for effective energy management in wireless sensor networks with energy-hungry sensors," IEEE Trans Instrum Meas, vol. 59, no. 2, pp. 335-344, 2010. https://doi.org/10.1109/TIM.2009.2023818
  5. W.R. Dieter, S. Datta and W.K. Kai, "Power reduction by varying sampling rate," In Proceedings of the 2005 international symposium on Low power electronics and design, ACM. Aug. 2005.
  6. A.V. Oppenheim and W.S. Ronald, Discrete-time signal processing, Pearson Higher Education, 2010.
  7. H. Shin and S. Kang, "Investigation of Peak Location Changes of Photoplethysmography according to the Sampling Frequency Changes", Bio-Medical System Conference, Welli-Hilli park, Heongsung-gun, Gangwon-do, South Korea, Jan. 2016.
  8. Y. L Yang and H. Shin, "An Effect of the Sampling Frequency to the Pulse Rate Variability Analysis," International Biomedical Engineering Conference (IBEC ) 2015, Gyeong-ju IBEC 2015
  9. Y. L. Yang and H. Shin, "An Investigation of the Effect of Sampling Frequencyto the Frequency Domain Analysis of Pulse Rate Variability," The 38th Annual International Conference of the IEEE Engineering in Medicine, Orlando, USA, 2016.
  10. Y.L. Yang and H. Shin "An Effect of Sampling Rate to the Sample Entropy Analysis of Pulse Rate Variability", Summer Conference of the Korean Institute of Electrical Engineers (KIEE), Gangwon- do, South Korea, 2016.
  11. S. Kang and H Shin, "An Investigation of the Feature Point Restoration of Undersampled Photoplethysmogram Using Interpolation", Summer Conference of the Korean Institute of Electrical Engineers (KIEE), Gangwon-do, South Korea, 2016.
  12. C. De Boor, E.U. Mathematicien, A practical guide to splines, vol. 27, New York: Springer-Verlag, 1978.
  13. F.N. Fritsch, and R.E. Carlson, "Monotone Piecewise Cubic Interpolation," SIAM J. Numerical Analysis, vol. 17, pp. 238-246, 1980. https://doi.org/10.1137/0717021
  14. W.G. Bickley, "Piecewise cubic interpolation and twopoint boundary problems" The Comput J, vol. 11, no. 2, pp. 206-208, 1968. https://doi.org/10.1093/comjnl/11.2.206
  15. H. Shin, "An evaluation of cardiovascular system using photoplethysmography", Ph.D. dissertation, Dept. Elect and Electro Eng, Yonsei Univ., 2010.