• Conf Proc IEEE Eng Med Biol Soc · Jan 2010

    Real time breathing rate estimation from a non contact biosensor.

    • Redmond B Shouldice, Conor Heneghan, Gabor Petres, Alberto Zaffaroni, Patricia Boyle, Walter McNicholas, and Philip de Chazal.
    • BiancaMed, NovaUCD, University College Dublin, 4, Ireland. redmond.shouldice@biancamed.com
    • Conf Proc IEEE Eng Med Biol Soc. 2010 Jan 1; 2010: 630-3.

    AbstractAn automated real time method for detecting human breathing rate from a non contact biosensor is considered in this paper. The method has low computational and RAM requirements making it well-suited to real-time, low power implementation on a microcontroller. Time and frequency domain methods are used to separate a 15s block of data into movement, breathing or absent states; a breathing rate estimate is then calculated. On a 1s basis, 96% of breaths were scored within 1 breath per minute of expert scored respiratory inductance plethysmography, while 99% of breaths were scored within 2 breaths per minute. When averaged over 30s, as is used in this respiration monitoring system, over 99% of breaths are within 1 breath per minute of the expert score.

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