A three-dimensional image reconstruction algorithm for electrical impedance tomography using planar electrode arrays

Figures & data

Figure 1. Layout of the rectangular electrode array of the latest prototype developed at the University of Mainz in collaboration with Oxford Brookes University:

are the active electrodes used for current injection, and

are the passive electrodes used for potential measurements.

Figure 2. Voxel configuration: are the active electrodes, are the passive electrodes, and $P1-P5$ denote the positions in the xy-plane where inclusions were placed in our numerical simulations.

Figure 3. Conductivity reconstructions for a cylindrical object of radius $R_{25}$ of conductivity 800 mS/m placed at position P1 and $z=-2$ mm. The thick continuous line in (e) marks the position and the height of the inclusion along the z-axis.

Figure 4. Conductivity reconstructions for a cylindrical object of radius $R_{25}$ of conductivity 800 mS/m placed at position P1 and $z=-3$ mm. The thick continuous line in (e) marks the position and the height of the inclusion along the z-axis.

Figure 5. Conductivity reconstructions for a cylindrical object of radius $R_{25}$ of conductivity 800 mS/m placed at position P1 and $z=-6$ mm. The thick continuous line in (e) marks the position and the height of the inclusion along the z-axis.

Figure 6. Conductivity reconstructions for a cylindrical object of radius $R_{35}$ of conductivity 800 mS/m placed at position P2 and $z=-3$ mm. The thick continuous line in (e) marks the position and the height of the inclusion along the z-axis.

Figure 7. Conductivity reconstructions for a cylindrical object of radius $R_{25}$ of conductivity 800 mS/m placed at position P2 and $z=-3$ mm. The thick continuous line in (e) marks the position and the height of the inclusion along the z-axis.

Figure 8. Conductivity reconstructions for a cylindrical object of radius $R_{15}$ of conductivity 800mS/m placed at position P2 and $z=-3$ mm. The thick continuous line in (e) marks the position and the height of the inclusion along the z-axis.

Figure 9. Conductivity reconstructions for a cylindrical object of radius $R_{25}$ of conductivity 800 mS/m placed at position P3 and $z=-3$ mm.

Figure 10. Conductivity reconstructions for a cylindrical object of radius $R_{25}$ of conductivity 800 mS/m placed at position P4 and $z=-3$ mm.

Figure 11. Conductivity reconstructions for a cylindrical object of radius $R_{35}$ of conductivity 800 mS/m placed at position P1 and $z=-4$ mm in the presence of a resistive medium (50 mS/m) in Voxel Layer 1. The thick continuous line in (e) marks the position and the height of the inclusion along the z-axis.

Figure 12. Conductivity reconstructions for two cylindrical objects of radii $R_{25}$ and $R_{15}$ of conductivities 800 mS/m placed at positions P5 and P6, respectively, and $z=-3$ mm.

Figure 13. Conductivity reconstructions for two cylindrical objects, one of radius $R_{25}$ and of conductivity 600 mS/m, and the other of radius $R_{15}$ and of conductivity 800 mS/m, placed at positions P5 and P6, respectively, and $z=-3$ mm.