Abstract
Abstract Electrical impedance tomography is a nondestructive tomographic technique used to estimate the internal structures of objects. Obtaining a tomograph image is synonymous with solving an inverse problem. Since the inverse problem is ill-posed, the obtained solution contains errors, resulting in degradation of the spatial resolution. This paper proposes a post-processing method to improve the spatial resolution. In the post-process, two tomograph images obtained using different solving parameters were logically combined. By combining tomograph images obtained with different hyperparameters and current injection patterns, the spatial resolutions regarding the position and size of foreign objects were improved.
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