Document Type

Article

Language

eng

Publication Date

4-26-2019

Publisher

IOP Publishing

Source Publication

Physiological Measurement

Source ISSN

0967-3334

Abstract

Objective: To compare D-bar difference reconstruction with regularized linear reconstruction in electrical impedance tomography. Approach: A standard regularized linear approach using a Laplacian penalty and the GREIT method for comparison to the D-bar difference images. Simulated data was generated using a circular phantom with small objects, as well as a 'Pac-Man' shaped conductivity target. An L-curve method was used for parameter selection in both D-bar and the regularized methods. Main results: We found that the D-bar method had a more position independent point spread function, was less sensitive to errors in electrode position and behaved differently with respect to additive noise than the regularized methods. Significance: The results allow a novel pathway between traditional and D-bar algorithm comparison.

Comments

Accepted version. Physiological Measurement, Vol. 40, No. 4 (April 26, 2019): 044004. DOI. © 2019 IOP Publishing. Used with permission.

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