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arXiv · 2107.05533

Deformation-Compensated Learning for Image Reconstruction without Ground Truth

Weijie Gan·Yu Sun·Cihat Eldeniz·Jiaming Liu·Hongyu An·Ulugbek S. Kamilov
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Abstract

Deep neural networks for medical image reconstruction are traditionally trained using high-quality ground-truth images as training targets. Recent work on Noise2Noise (N2N) has shown the potential of using multiple noisy measurements of the same object as an alternative to having a ground-truth. However, existing N2N-based methods are not suitable for learning from the measurements of an object undergoing nonrigid deformation. This paper addresses this issue by proposing the deformation-compensated learning (DeCoLearn) method for training deep reconstruction networks by compensating for object deformations. A key component of DeCoLearn is a deep registration module, which is jointly trained with the deep reconstruction network without any ground-truth supervision. We validate DeCoLearn on both simulated and experimentally collected magnetic resonance imaging (MRI) data and show that it significantly improves imaging quality.

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Weijie Gan, Yu Sun, Cihat Eldeniz, Jiaming Liu, Hongyu An, Ulugbek S. Kamilov. 2021-12-17. Deformation-Compensated Learning for Image Reconstruction without Ground Truth. https://arxiv.org/abs/2107.05533

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