VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • Feasibility study of heartbeat detection from optical interferometric signal by using convolution kernel compensation [Elektronski vir]
    Šprager, Sebastijan ; Holobar, Aleš ; Zazula, Damjan
    In this paper, a feasibility of detecting heartbeat from optical interferometric signal by using convolution kernel compensation (CKC) latent variable analysis (LVA) approach is examined. Optical ... interferometer is a verysensitive device that detects physical elongation of the optical fibre. When used as bed or body sensor, mechanical and audible activity of the heart produce perturbations in the detected signal that, when extracted by LVA, allows completely unobtrusive monitoring of heartbeat. We performed an experiment with fourteen young healthy participants. They exercised on a cycleergometer until they reached their submaximal heart rate (85 % of maximalheart rate). During resting period after the exercise optical interferometric signal was acquired along with the referential ECG signal. CKC-based decomposition of 1- minute-long signal segments was performed. The obtained efficiency (sensitivity of 97.8 3.0 %, precision of 93.6 7.6 %) and accuracy (reference-to-detected beat delay of 167 65 ms) are within acceptable limits indicating that unobtrusive heartbeat detection using the proposed approach is feasible.
    Vir: BIOSIGNALS 2013 [Elektronski vir] : proceedings of the 6th International Conference on Bio-inspired Systems and Signal Processing, Barcelona, Spain, 11-14 February, 2013 (Str. 396-400)
    Vrsta gradiva - prispevek na konferenci
    Leto - 2013
    Jezik - angleški
    COBISS.SI-ID - 16736534

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