YURAGI: analysis for detecting heart-rate by mat-type sensor in bed

Yutaka Hata; Kiyotaka Ho; Kei Kuramoto; Syoji Kobashi; Naoki Tsuchiya; Hiroshi Nakajima

doi:10.1117/12.883339

3 June 2011 YURAGI: analysis for detecting heart-rate by mat-type sensor in bed

Yutaka Hata, Kiyotaka Ho, Kei Kuramoto, Syoji Kobashi, Naoki Tsuchiya, Hiroshi Nakajima

Proceedings Volume 8058, Independent Component Analyses, Wavelets, Neural Networks, Biosystems, and Nanoengineering IX; 80580Y (2011) https://doi.org/10.1117/12.883339
Event: SPIE Defense, Security, and Sensing, 2011, Orlando, Florida, United States

Abstract

This paper discusses a data analysis by YURAGI for a heart rate non-constraining monitoring system Three signals are employed: primary signal is obtained by a mat-type sensor, which is placed between a bed and subject, the second one is obtained by an ultrasonic vibration senor attached to bed frame, and third one is Gaussian noise. We compare the results from the synthesized data of the first and second signals with those of first signal and the noise. We employ weighted sum as the synthesized method. We consider Gaussian noise as YURAGI. The extraction algorithm was developed based on fuzzy logic. The comparison was done on 10 healthy volunteers and we evaluated the accuracy for various weight ratio. Here, we must concern the accuracy because the tiny accuracy difference causes large difference in the autonomic nerve system assessment. As the result, the results obtained from both synthesized signals were superior to that from mat-type sensor signal only. Thus, YURAGI analysis is useful to for detecting heart rate by mat-type sensor.

Citation Download Citation

Yutaka Hata, Kiyotaka Ho, Kei Kuramoto, Syoji Kobashi, Naoki Tsuchiya, and Hiroshi Nakajima "YURAGI: analysis for detecting heart-rate by mat-type sensor in bed", Proc. SPIE 8058, Independent Component Analyses, Wavelets, Neural Networks, Biosystems, and Nanoengineering IX, 80580Y (3 June 2011); https://doi.org/10.1117/12.883339

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