11 citations · 12 across the 6 of their papers we have counts for
7 papers
Local electrical impedance tomography via projections
A. Jääskeläinen, A. Vavilov, J. Toivanen +3
This paper introduces a method for approximately eliminating the effect that conductivity changes outside the region of interest have in electrical impedance tomography, allowing t…
Projection-based preprocessing for electrical impedance tomography to reduce the effect of electrode contacts
Altti Jääskeläinen, Jussi Toivanen, Asko Hänninen +2
This work introduces a method for preprocessing measurements of electrical impedance tomography to considerably reduce the effect uncertainties in the electrode contacts have on th…
Fast 3D Partial Boundary Data EIT Reconstructions using Direct Inversion CGO-based Methods
Sarah J. Hamilton, Peter Muller, Ville Kolehmainen +1
The first partial boundary data complex geometrical optics based methods for electrical impedance tomography in three dimensions are developed, and tested, on simulated and experim…
Graph convolutional networks enable fast hemorrhagic stroke monitoring with electrical impedance tomography
J. Toivanen, V. Kolehmainen, A. Paldanius +3
Objective: To develop a fast image reconstruction method for stroke monitoring with electrical impedance tomography with image quality comparable to computationally expensive nonli…
Fast Absolute 3D CGO-Based Electrical Impedance Tomography on Experimental Tank Data
S. J. Hamilton, P. A. Muller, D. Isaacson +5
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 traditio…
3D EIT Reconstructions from Electrode Data using Direct Inversion D-bar and Calderon Methods
Sarah J. Hamilton, David Isaacson, Ville Kolehmainen +3
The first numerical implementation of a D-bar method in 3D using electrode data is presented. Results are compared to Calderón's method as well as more common TV and smoothness reg…
Joint Reconstruction in Low Dose Multi-Energy CT
Jussi Toivanen, Alexander Meaney, Samuli Siltanen +1
Multi-energy CT takes advantage of the non-linearly varying attenuation properties of elemental media with respect to energy, enabling more precise material identification than sin…