Wireless Mobile Communication and Healthcare. 6th International Conference, MobiHealth 2016, Milan, Italy, November 14-16, 2016, Proceedings

Research Article

A Quantitative Evaluation of Drive Patterns in Electrical Impedance Tomography

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  • @INPROCEEDINGS{10.1007/978-3-319-58877-3_43,
        author={Stefania Russo and Nicola Carbonaro and Alessandro Tognetti and Samia Nefti-Meziani},
        title={A Quantitative Evaluation of Drive Patterns in Electrical Impedance Tomography},
        proceedings={Wireless Mobile Communication and Healthcare. 6th International Conference, MobiHealth 2016, Milan, Italy, November 14-16, 2016, Proceedings},
        proceedings_a={MOBIHEALTH},
        year={2017},
        month={6},
        keywords={Electrical Impedance Tomography EIT Drive patterns Stretchable sensors},
        doi={10.1007/978-3-319-58877-3_43}
    }
    
  • Stefania Russo
    Nicola Carbonaro
    Alessandro Tognetti
    Samia Nefti-Meziani
    Year: 2017
    A Quantitative Evaluation of Drive Patterns in Electrical Impedance Tomography
    MOBIHEALTH
    Springer
    DOI: 10.1007/978-3-319-58877-3_43
Stefania Russo1,*, Nicola Carbonaro2,*, Alessandro Tognetti,*, Samia Nefti-Meziani1,*
  • 1: University of Salford
  • 2: University of Pisa
*Contact email: s.russo1@salford.ac.uk, nicola.carbonaro@centropiaggio.unipi.it, a.tognetti@centropiaggio.unipi.it, s.nefti-meziani@salford.ac.uk

Abstract

Electrical Impedance Tomography (EIT) is a method used to display, through an image, the conductivity distribution inside a domain by using measurements taken from electrodes placed at its periphery. This paper presents our prototype of a stretchable touch sensor, which is based on the EIT method. We then test its performance by comparing voltage data acquired from testing with two different materials, using the performance parameters Signal-to-Noise Ratio (SNR), Boundary Voltage Changes (BVC) and Singular Value Decomposition (SVD). The paper contributes to the literature by demonstrating that, depending on the present stimuli position over the conductive domain, the selection of electrodes on which current injection and voltage reading are performed, can be chosen dynamically resulting in an improved quality of the reconstructed image and system performance.