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- W4387487603 abstract "Deep unfolding networks (DUNs) have become mainstream for many medical image reconstruction tasks due to their exceptional interpretability and high performance. Unlike black-box deep neural networks, DUNs can provide insight into the intermediary steps of the reconstruction process. Extensive work has been done to study classical optimization algorithms. However, there are several issues that still require further exploration, including the unfolding implications of accelerated optimization algorithms and the performance bottlenecks in unfolding algorithms. To tackle these two concerns, this paper initially validates the extent of performance enhancement achieved by accelerated variation of ADMM, as compared to the original method. As for the second issue, we point out that the coarse information fusion operations utilized in existing unfolding networks primarily impede their performance (e.g., simple addition and subtraction). Based on this, we design a simple, reasonable yet effective accelerated ADMM-based unfolding framework, which integrate multi-channel information into existing DUNs. Additionally, the developed efficient feature aggregation strategy can further enhance the performance of DUNs. We demonstrate, through MRI accelerated reconstruction experiments, that the proposed framework outperforms state-of-the-art DUNs while utilizing fewer parameters." @default.
- W4387487603 created "2023-10-11" @default.
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- W4387487603 date "2023-01-01" @default.
- W4387487603 modified "2023-10-12" @default.
- W4387487603 title "Accelerated Unfolding Network for Medical Image Reconstruction with Efficient Information Flow" @default.
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- W4387487603 doi "https://doi.org/10.1007/978-981-99-6489-5_4" @default.
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