A pre-iteration method for the inverse problem in electrical impedance tomography

Author

Wang, Huaxiang ; Wang, Chao ; Yin, Wuliang

Author_Institution

Sch. of Electr. & Autom. Eng., Tianjin Univ., China

Volume

53

Issue

4

fYear

2004

Firstpage

1093

Lastpage

1096

Abstract

In this paper, the relationship between Landweber iteration and the generalized inverse has been analyzed, and it is shown that Landweber iteration is, in fact, a modification of the generalized inverse that is implemented by using the iteration solution. At the same time, a new reconstruction algorithm, termed the pre-iteration method, is proposed, which splits the image reconstruction process into two steps that are the off-line pre-iteration and the on-line one-step reconstruction. The speed of image reconstruction is remarkably increased.

Keywords

electric impedance imaging; image reconstruction; inverse problems; iterative methods; Landweber iteration; electrical impedance tomography; generalized inverse; image reconstruction; inverse problem; off-line pre-iteration; on-line one-step reconstruction; pre-iteration algorithm; Area measurement; Conductivity; Equations; Image reconstruction; Impedance measurement; Inverse problems; Pixel; Tomography; Vectors; Voltage; EIT; Electrical impedance tomography; Landweber iteration; generalized inverse; pre-iteration algorithm;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2004.831180

Filename

1315989