Objective: To present the first 3D CGO-based absolute EIT reconstructions from experimental tank data. Approach: CGO-based methods for absolute EIT imaging are compared to traditional TV regularized non-linear least squares reconstruction methods. Additional robustness testing is performed by considering incorrect model\textbf{}ing of domain shape. Main Results: The CGO-based methods are fast, and show strong robustness to incorrect domain modeling comparable to classic difference EIT imaging and fewer boundary artefacts than the TV regularized non-linear least squares reference reconstructions. Significance: This work is the first to demonstrate fully 3D CGO-based absolute EIT reconstruction on experimental data and also compares to TV-regularized absolute reconstruction. The speed (1-5 seconds) and quality of the reconstructions is encouraging for future work in absolute EIT.
@article{arxiv.2301.01655,
title = {Fast Absolute 3D CGO-Based Electrical Impedance Tomography on Experimental Tank Data},
author = {S. J. Hamilton and P. A. Muller and D. Isaacson and V. Kolehmainen and J. Newell and O. Rajabi Shishvan and G. Saulnier and J. Toivanen},
journal= {arXiv preprint arXiv:2301.01655},
year = {2023}
}