Electrodeless electrode model for electrical impedance tomography

02/03/2021
by   J. Dardé, et al.
0

Electrical impedance tomography is an imaging modality for extracting information on the interior structure of a physical body from boundary measurements of current and voltage. This work studies a new robust way of modeling the contact electrodes used for driving current patterns into the examined object and measuring the resulting voltages. The idea is to not define the electrodes as strict geometric objects on the measurement boundary, but only to assume approximate knowledge about their whereabouts and let a boundary admittivity function determine the actual locations of the current inputs. Such an approach enables reconstructing the boundary admittivity, i.e. the locations and strengths of the contacts, at the same time and with analogous methods as the interior admittivity. The functionality of the new model is verified by two-dimensional numerical experiments based on water tank data.

READ FULL TEXT
research
04/05/2021

Simultaneous reconstruction of conductivity, boundary shape and contact impedances in electrical impedance tomography

The objective of electrical impedance tomography (EIT) is to reconstruct...
research
09/12/2022

Series reversion for practical electrical impedance tomography with modeling errors

This work extends the results of [Garde and Hyvönen, Math. Comp. 91:1925...
research
08/27/2019

Centroidal Voronoi Tessellation Based Methods for Optimal Rain Gauge Location Prediction

With more satellite and model precipitation data becoming available, new...
research
09/05/2023

Bayesian experimental design for linear elasticity

This work considers Bayesian experimental design for the inverse boundar...
research
06/11/2021

Approximation error method for imaging the human head by electrical impedance tomography

This work considers electrical impedance tomography imaging of the human...
research
01/28/2020

Mimicking relative continuum measurements by electrode data in two-dimensional electrical impedance tomography

This paper introduces a constructive method for approximating relative c...
research
04/18/2023

Electrical Impedance Tomography with Deep Calderón Method

Electrical impedance tomography (EIT) is a noninvasive medical imaging m...

Please sign up or login with your details

Forgot password? Click here to reset