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• W3202371506 abstract "For collecting high-quality high-resolution (HR) MR image, we propose a novel image reconstruction network named IREM, which is trained on multiple low-resolution (LR) MR images and achieve an arbitrary up-sampling rate for HR image reconstruction. In this work, we suppose the desired HR image as an implicit continuous function of the 3D image spatial coordinate, and the thick-slice LR images as several sparse discrete samplings of this function. Then the super-resolution (SR) task is to learn the continuous volumetric function from a limited observation using a fully-connected neural network combined with Fourier feature positional encoding. By simply minimizing the error between the network prediction and the acquired LR image intensity across each imaging plane, IREM is trained to represent a continuous model of the observed tissue anatomy. Experimental results indicate that IREM succeeds in representing high-frequency image features, and in real scene data collection, IREM reduces scan time and achieves high-quality high-resolution MR imaging in terms of SNR and local image detail." @default.
• W3202371506 created "2021-10-11" @default.
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• W3202371506 date "2021-01-01" @default.
• W3202371506 modified "2023-10-12" @default.
• W3202371506 title "IREM: High-Resolution Magnetic Resonance Image Reconstruction via Implicit Neural Representation" @default.
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• W3202371506 doi "https://doi.org/10.1007/978-3-030-87231-1_7" @default.
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