Title
Efficient Multitask Structure-Aware Sparse Bayesian Learning for Frequency-Difference Electrical Impedance Tomography
Abstract
Frequency-difference electrical impedance tomography (fdEIT) was originally developed to mitigate the systematic artifacts induced by modeling errors when a baseline dataset is unavailable. Instead of fine anatomical imaging, only coarse anomaly detection has been addressed in current fdEIT research mainly due to its low spatial resolution. On the other hand, there has been not enough study on fdEIT reconstruction algorithm as well. In this article, we propose an efficient and high-spatial-resolution algorithm for simultaneously reconstructing multiple fdEIT frames corresponding to inject currents with multiple frequencies. The electrical impedance tomography reconstruction problem is considered within a hierarchical Bayesian framework, where both intratask spatial clustering and intertask dependency are automatically learned and exploited in an unsupervised manner. The computation is accelerated by adopting a modified marginal likelihood maximization approach. Real-data experiments are conducted to verify the recovery performance of the proposed algorithm.
Year
DOI
Venue
2021
10.1109/TII.2020.2965202
IEEE Transactions on Industrial Informatics
Keywords
DocType
Volume
Electrical impedance tomography (EIT),frequency difference,inverse problem,image reconstruction,sparse Bayesian learning (SBL)
Journal
17
Issue
ISSN
Citations 
1
1551-3203
4
PageRank 
References 
Authors
0.43
0
5
Name
Order
Citations
PageRank
Shengheng Liu1429.89
Yongming Huang21472146.50
Hancong Wu341.11
Chao Tan442.12
Jiabin Jia5206.91