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Shape-Driven EIT Reconstruction Using Fourier Representations
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DOI：10.1109/TMI.2020.3030024.png)
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Shape-driven approaches have been proposed as an effective strategy for the electrical impedance tomography (EIT) reconstruction problem in recent years. In order to augment the shape-driven approaches, we propose a new method that transforms the shape to be reconstructed as basic primitives directly modeled by using Fourier representations. To allow automatic topological changes between the basic primitives and surrounding objects simultaneously, Boolean operations are employed. The Boolean operations with direct representation of primitives can be utilized for dimensionality and ill-posedness reduction, enabling feasible shape and topology optimization with shape-driven approaches. As a proof of principle, we leverage the proposed method for two dimensional shape reconstruction in EIT with various conductivity distributions. We demonstrate that our method is able to improve EIT reconstructions by enabling accurate shape and topology optimization.
Keyword:
Shape
Image reconstruction
Tomography
Conductivity
Topology
Conductivity measurement
Current measurement
Electrical impedance tomography
Fourier representation
Boolean operations
shape reconstruction
primitives
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