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A New Iterative Algorithm Based on Correction of Sensitivity Matrix for Electrical Resistance Tomography
Joint Authors
Han, Yan
Li, Kun
Chen, Yutong
Yang, Wuqiang
Source
Mathematical Problems in Engineering
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-12-28
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
Electrical resistance tomography (ERT) is used to reconstruct the resistance/conductivity distribution.
Usually, a uniform distribution is assumed as the initial condition to obtain a generic sensitivity matrix, which may be very different from a theoretical sensitivity matrix, resulting in a large error.
The aim of this study is to analyse the difference between a generalized sensitivity matrix and a theoretical sensitivity matrix and to improve image reconstruction.
The effect of the generic sensitivity matrix and theoretical sensitivity matrix on image reconstruction is analyzed.
The error caused by the use of the generic sensitivity matrix is estimated.
To reduce the error, an improved iterative image reconstruction algorithm is proposed, which is based on calculation of the error between the generic sensitivity matrix and the theoretical sensitivity matrix, and a correction coefficient with a penalty.
During the iterative process, the resistivity distribution and sensitivity matrix are alternatively corrected.
Simulation and experimental results show that the proposed algorithm can improve the quality of images, e.g., of two-phase distributions.
American Psychological Association (APA)
Chen, Yutong& Han, Yan& Yang, Wuqiang& Li, Kun. 2019. A New Iterative Algorithm Based on Correction of Sensitivity Matrix for Electrical Resistance Tomography. Mathematical Problems in Engineering،Vol. 2019, no. 2019, pp.1-15.
https://search.emarefa.net/detail/BIM-1196518
Modern Language Association (MLA)
Chen, Yutong…[et al.]. A New Iterative Algorithm Based on Correction of Sensitivity Matrix for Electrical Resistance Tomography. Mathematical Problems in Engineering No. 2019 (2019), pp.1-15.
https://search.emarefa.net/detail/BIM-1196518
American Medical Association (AMA)
Chen, Yutong& Han, Yan& Yang, Wuqiang& Li, Kun. A New Iterative Algorithm Based on Correction of Sensitivity Matrix for Electrical Resistance Tomography. Mathematical Problems in Engineering. 2019. Vol. 2019, no. 2019, pp.1-15.
https://search.emarefa.net/detail/BIM-1196518
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1196518