SDEIT: Semantic-Driven Electrical Impedance Tomography
Journal:
arXiv
Published Date:
Apr 5, 2025
Abstract
Regularization methods using prior knowledge are essential in solving
ill-posed inverse problems such as Electrical Impedance Tomography (EIT).
However, designing effective regularization and integrating prior information
into EIT remains challenging due to the complexity and variability of
anatomical structures. In this work, we introduce SDEIT, a novel
semantic-driven framework that integrates Stable Diffusion 3.5 into EIT,
marking the first use of large-scale text-to-image generation models in EIT.
SDEIT employs natural language prompts as semantic priors to guide the
reconstruction process. By coupling an implicit neural representation (INR)
network with a plug-and-play optimization scheme that leverages SD-generated
images as generative priors, SDEIT improves structural consistency and recovers
fine details. Importantly, this method does not rely on paired training
datasets, increasing its adaptability to varied EIT scenarios. Extensive
experiments on both simulated and experimental data demonstrate that SDEIT
outperforms state-of-the-art techniques, offering superior accuracy and
robustness. This work opens a new pathway for integrating multimodal priors
into ill-posed inverse problems like EIT.
