Thermistor at a Distance: Unobtrusive Measurement of Breathing

  title={Thermistor at a Distance: Unobtrusive Measurement of Breathing},
  author={Jin Fei and Ioannis T. Pavlidis},
  journal={IEEE Transactions on Biomedical Engineering},
This paper unveils a thermal imaging methodology to recover the breathing waveform from the subject's nostrils. The resulting functionality is equivalent to that of a thermistor, but it is materialized in a contact-free manner. First, the nostril region is segmented and tracked over time through a network of cooperating probabilistic trackers. The mean thermal signal of the nostril region carries the breathing information. This information is extracted through wavelet analysis. The method has… CONTINUE READING
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