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arXiv · 2604.19176

Deep Image Prior for photoacoustic tomography can mitigate limited-view artifacts

Hanna Pulkkinen·Jenni Poimala·Leonid Kunyansky·Janek Gröhl·Andreas Hauptmann
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Abstract

We study the deep image prior (DIP) framework applied to photoacoustic tomography (PAT) as an unsupervised reconstruction approach to mitigate limited-view artifacts and noise commonly encountered in experimental settings. Efficient implementation is achieved by employing recently published fast forward and adjoint algorithms for circular measurement geometries. Initialization via a fast inverse and total variation (TV) regularization are applied to further suppress noise and mitigate overfitting. For comparison, we compute a classical TV reconstruction. Our experiments comprise simulated PAT measurements under limited-view geometries and varying levels of added noise as well as experimental measurements together with using a digital twin for quality assessment. Our findings suggest that DIP framework provides an effective unsupervised strategy for robust PAT reconstruction even in the challenging case of a limited view geometry providing improvement in several quantitative measures over total variation reconstructions.

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Hanna Pulkkinen, Jenni Poimala, Leonid Kunyansky, Janek Gröhl, Andreas Hauptmann. 2026-04-21. Deep Image Prior for photoacoustic tomography can mitigate limited-view artifacts. https://arxiv.org/abs/2604.19176

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