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A non-iterative method for the electrical impedance tomography based on joint sparse recovery

Title
A non-iterative method for the electrical impedance tomography based on joint sparse recovery
Authors
Lee, OkkyunKang, HyeonbaeYe, Jong ChulLim, Mikyoung
DGIST Authors
Lee, Okkyun; Kang, Hyeonbae; Ye, Jong Chul; Lim, Mikyoung
Issue Date
2015-07
Citation
Inverse Problems, 31(7)
Type
Article
ISSN
0266-5611
Abstract
The purpose of this paper is to propose a non-iterative method for the inverse conductivity problem of recovering multiple small anomalies from the boundary measurements. When small anomalies are buried in a conducting object, the electric potential values inside the object can be expressed by integrals of densities with a common sparse support on the location of anomalies. Based on this integral expression, we formulate the reconstruction problem of small anomalies as a joint sparse recovery and present an efficient non-iterative recovery algorithm of small anomalies. Furthermore, we also provide a slightly modified algorithm to reconstruct an extended anomaly. We validate the effectiveness of the proposed algorithm over the linearized method and the multiple signal classification algorithm by numerical simulations. © 2015 IOP Publishing Ltd.
URI
http://hdl.handle.net/20.500.11750/13332
DOI
10.1088/0266-5611/31/7/075002
Publisher
Institute of Physics Publishing
Related Researcher
  • Author Lee, Okkyun Next-generation Medical Imaging Lab
  • Research Interests Diffuse optical tomography; Functional brain imaging; Compressed sensing; Photon counting CT
Files:
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Collection:
Department of Robotics and Mechatronics EngineeringNext-generation Medical Imaging Lab1. Journal Articles


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