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- W4385756446 abstract "Deep equilibrium models (DEQ) have emerged as a powerful alternative to deep unfolding (DU) for image reconstruction. DEQ models— <italic xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>implicit neural networks</i> with effectively infinite number of layers—were shown to achieve state-of-the-art image reconstruction without the memory complexity associated with DU. While the performance of DEQ has been widely investigated, the existing work has primarily focused on the settings where ground truth data is available for training. We present <italic xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>self-supervised deep equilibrium model (SelfDEQ)</i> as the first self-supervised reconstruction framework for training model-based implicit networks from undersampled and noisy MRI measurements. Our theoretical results show that SelfDEQ can compensate for unbalanced sampling across multiple acquisitions and match the performance of fully supervised DEQ. Our numerical results on <italic xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>in-vivo</i> MRI data show that SelfDEQ leads to state-of-the-art performance using only undersampled and noisy training data." @default.
- W4385756446 created "2023-08-12" @default.
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- W4385756446 date "2023-01-01" @default.
- W4385756446 modified "2023-09-23" @default.
- W4385756446 title "Self-Supervised Deep Equilibrium Models with Theoretical Guarantees and Applications to MRI Reconstruction" @default.
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- W4385756446 doi "https://doi.org/10.1109/tci.2023.3304475" @default.
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