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Imaging of conductivity changes and electrode movement in EIT
 

Summary: Imaging of conductivity changes and electrode
movement in EIT
Manuchehr Soleimani1
, Camille G´omez-Laberge2
and Andy
Adler2
1
William Lee Innovation Centre, School of Materials, University of Manchester, UK
2
School of Information Technology and Engineering (SITE), University of Ottawa,
Canada
E-mail: M.Soleimani-2@manchester.ac.uk,{cgomez,adler}@site.uOttawa.ca
Abstract. Electrical Impedance Tomography (EIT) attempts to reconstruct the
internal impedance distribution in a medium from electrical measurements at
electrodes on the medium surface. One key difficulty with EIT measurements is due
to the position uncertainty of the electrodes, especially for medical applications, in
which the body surface moves during breathing and posture change. In this paper,
we develop a new approach which directly reconstructs both electrode movements
and internal conductivity changes for difference EIT. The reconstruction problem is
formulated in terms of a regularized inverse, using an augmented Jacobian, sensitive to

  

Source: Adler, Andy - Department of Systems and Computer Engineering, Carleton University

 

Collections: Computer Technologies and Information Sciences