Optimization of Electrode Positions in Electrical Impedance Tomography

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F21%3APU144213" target="_blank" >RIV/00216305:26220/21:PU144213 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1109/PIERS53385.2021.9694982" target="_blank" >http://dx.doi.org/10.1109/PIERS53385.2021.9694982</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/PIERS53385.2021.9694982" target="_blank" >10.1109/PIERS53385.2021.9694982</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Optimization of Electrode Positions in Electrical Impedance Tomography

Popis výsledku v původním jazyce

This paper introduces the optimization of electrode placement in electrical impedance tomography modeling. Precise impedance reconstruction requires accurate, well-correlated physical and numerical finite element method (FEM) models; thus, we employed the Nelder-Mead algorithm and a complete electrode model to evaluate the electrode misplacement. The electrode placement error is defined by their absolute angle from the originally equidistantly spaced initial positions. The optimization process was designed to calculate the parameters of the numerical model before launching the image reconstruction. The models were verified via simulation and experimental measurement with single source current pattern. The impact of the optimization electrodes configuration was reflected in the applied image reconstruction process, where the imprecise placement of the 6th electrode was successfully optimized with adjacent driving; the conductivity error dropped by 12.69%. The designed optimization process proved to be suitable for correlating the numerical and the physical models, and it also enabled us to eliminate imaging uncertainties and artifacts.

Název v anglickém jazyce

Optimization of Electrode Positions in Electrical Impedance Tomography

Popis výsledku anglicky

This paper introduces the optimization of electrode placement in electrical impedance tomography modeling. Precise impedance reconstruction requires accurate, well-correlated physical and numerical finite element method (FEM) models; thus, we employed the Nelder-Mead algorithm and a complete electrode model to evaluate the electrode misplacement. The electrode placement error is defined by their absolute angle from the originally equidistantly spaced initial positions. The optimization process was designed to calculate the parameters of the numerical model before launching the image reconstruction. The models were verified via simulation and experimental measurement with single source current pattern. The impact of the optimization electrodes configuration was reflected in the applied image reconstruction process, where the imprecise placement of the 6th electrode was successfully optimized with adjacent driving; the conductivity error dropped by 12.69%. The designed optimization process proved to be suitable for correlating the numerical and the physical models, and it also enabled us to eliminate imaging uncertainties and artifacts.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

2021 Photonics & Electromagnetics Research Symposium (PIERS)

ISBN

978-1-7281-7247-7

ISSN

1559-9450

e-ISSN

—

Počet stran výsledku

6

Strana od-do

2183-2188

Název nakladatele

Neuveden

Místo vydání

neuveden

Místo konání akce

Hangzhou, China

Datum konání akce

21. 11. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—