Communications of the Korean Mathematical Society (대한수학회논문집)

Korean Mathematical Society (대한수학회)
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ELECTRICAL IMPEDANCE IMAGING FOR SEARCHING ANOMALIES

  • Ohin Kwon (Department of Mathematics and Natural Science Research Institute, Yonsei University) ;
  • Seo, Jin-Keun (Department of Mathematics, Yonsei University) ;
  • Woo, Eung-Je (School of Electronics and Information, Kyung Hee University) ;
  • Yoon, Jeong-Rock (School of Mathematics, Korea Institute for Advanced Study)
  • Published : 2001.07.01
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Abstract

The aim of EIT (electrical impedance tomography) system is to image cross-section conductivity distribution of a human body by means of both generating and sensing electrodes attached on to the surface of the body, where currents are injected and voltages are measured. EIT has been suffered from the severe ill-posedness which is caused by the inherent low sensitivity of boundary measurements to any changes of internal tissue conductivity values. With a limited set of current-to-voltage data, figuring out full structure of the conductivity distribution could be extremely difficult at present time, so it could be worthwhile to extract some necessary partial information of the internal conductivity. We try to extract some key patterns of current-to-voltage data that furnish some core information on the conductivity distribution such s location and size. This overview provides our recent observation on the location search and the size estimation.

Keywords

References

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