Monitoring Respiratory Sounds: Compressed Sensing Reconstruction via OMP on Android Smartphone

Dinko Oletic; Mateja Skrapec; Vedran Bilas

Wireless Mobile Communication and Healthcare. Third International Conference, MobiHealth 2012, Paris, France, November 21-23, 2012, Revised Selected Papers

Research Article

Monitoring Respiratory Sounds: Compressed Sensing Reconstruction via OMP on Android Smartphone

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@INPROCEEDINGS{10.1007/978-3-642-37893-5_13,
    author={Dinko Oletic and Mateja Skrapec and Vedran Bilas},
    title={Monitoring Respiratory Sounds: Compressed Sensing Reconstruction via OMP on Android Smartphone},
    proceedings={Wireless Mobile Communication and Healthcare. Third International Conference, MobiHealth 2012, Paris, France, November 21-23, 2012, Revised Selected Papers},
    proceedings_a={MOBIHEALTH},
    year={2013},
    month={4},
    keywords={asthma m-health compressive sensing orthogonal matching pursuit smartphone Android},
    doi={10.1007/978-3-642-37893-5_13}
}

Dinko Oletic
Mateja Skrapec
Vedran Bilas
Year: 2013
Monitoring Respiratory Sounds: Compressed Sensing Reconstruction via OMP on Android Smartphone
MOBIHEALTH
Springer
DOI: 10.1007/978-3-642-37893-5_13

Dinko Oletic¹^,*, Mateja Skrapec¹^,*, Vedran Bilas¹^,*

1: University of Zagreb

*Contact email: dinko.oletic@fer.hr, mateja.skrapec@fer.hr, vedran.bilas@fer.hr

Abstract

We present a novel respiratory sounds monitoring concept based on compressive sensing (CS). Respiratory sounds are streamed from a body-worn sensor node to a smartphone where processing is conducted. CS is used to simultaneously lower sampling frequency on the sensor node and over-the-air data rate. In this study we emphasize compressed sensing reconstruction via orthogonal matching pursuit (OMP) on Android smartphone. Accuracy of the reconstruction and execution speed are investigated using synthetic signals. We demonstrate applicability of the technique in real-time reconstruction of at least 10 components of compressible DCT spectrum of respiratory sounds containing asthmatic wheezing, acquired at 4x lower sampling rate.

Keywords: asthma m-health compressive sensing orthogonal matching pursuit smartphone Android

Published: 2013-04-04

: http://dx.doi.org/10.1007/978-3-642-37893-5_13