Noisier2Inverse: Self-Supervised Learning for Image Reconstruction with Correlated Noise

• URL: http://arxiv.org/abs/2503.19468v1
• Date: Tue, 25 Mar 2025 08:59:11 GMT
• Title: Noisier2Inverse: Self-Supervised Learning for Image Reconstruction with Correlated Noise
• Authors: Nadja Gruber, Johannes Schwab, Markus Haltmeier, Ander Biguri, Clemens Dlaska, Gyeongha Hwang,
• Abstract summary: Noisier2Inverse is a correction-free self-supervised deep learning approach for general inverse prob- lems.<n>We numerically demonstrate that our method clearly outperforms previous self-supervised approaches that account for correlated noise.
• Score: 1.099532646524593
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We propose Noisier2Inverse, a correction-free self-supervised deep learning approach for general inverse prob- lems. The proposed method learns a reconstruction function without the need for ground truth samples and is ap- plicable in cases where measurement noise is statistically correlated. This includes computed tomography, where detector imperfections or photon scattering create correlated noise patterns, as well as microscopy and seismic imaging, where physical interactions during measurement introduce dependencies in the noise structure. Similar to Noisier2Noise, a key step in our approach is the generation of noisier data from which the reconstruction net- work learns. However, unlike Noisier2Noise, the proposed loss function operates in measurement space and is trained to recover an extrapolated image instead of the original noisy one. This eliminates the need for an extrap- olation step during inference, which would otherwise suffer from ill-posedness. We numerically demonstrate that our method clearly outperforms previous self-supervised approaches that account for correlated noise.

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