Qualitative reconstruction methods for imaging interior Robin interfaces in EIT from Robin-to-Dirichlet data
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arXiv
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| Format: | Preprint |
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2026
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| _version_ | 1866911378883739648 |
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| author | Ayala, Rafael Ceja Español, Malena I. Granados, Govanni |
| author_facet | Ayala, Rafael Ceja Español, Malena I. Granados, Govanni |
| contents | We consider an inverse shape problem arising in electrical impedance tomography (EIT) for nondestructive testing, in which interior defects are modeled through Robin transmission conditions. Unlike classical formulations, we impose Robin boundary conditions on both the exterior measurement surface and the interior interface, and use the Robin-to-Dirichlet (RtD) map as the available data. Within this setting, we develop qualitative (non-iterative) reconstruction methods based on the Linear Sampling Method (LSM) and the Regularized Factorization Method (RFM), and derive new analytical characterizations that enable these methods to identify interior regions. We further propose a numerical implementation that incorporates regularization strategies and demonstrate, through experiments, that the methods reliably reconstruct interior regions of interest. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2601_10839 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Qualitative reconstruction methods for imaging interior Robin interfaces in EIT from Robin-to-Dirichlet data Ayala, Rafael Ceja Español, Malena I. Granados, Govanni Numerical Analysis Analysis of PDEs 35R30, 35J25, 47A52, 65N21 We consider an inverse shape problem arising in electrical impedance tomography (EIT) for nondestructive testing, in which interior defects are modeled through Robin transmission conditions. Unlike classical formulations, we impose Robin boundary conditions on both the exterior measurement surface and the interior interface, and use the Robin-to-Dirichlet (RtD) map as the available data. Within this setting, we develop qualitative (non-iterative) reconstruction methods based on the Linear Sampling Method (LSM) and the Regularized Factorization Method (RFM), and derive new analytical characterizations that enable these methods to identify interior regions. We further propose a numerical implementation that incorporates regularization strategies and demonstrate, through experiments, that the methods reliably reconstruct interior regions of interest. |
| title | Qualitative reconstruction methods for imaging interior Robin interfaces in EIT from Robin-to-Dirichlet data |
| topic | Numerical Analysis Analysis of PDEs 35R30, 35J25, 47A52, 65N21 |
| url | https://arxiv.org/abs/2601.10839 |