MRI (Magnetic Resonance Imaging) accelerated reconstruction system guided by multi-scale space-frequency domain feature information

The invention discloses an MRI (Magnetic Resonance Imaging) accelerated reconstruction system guided by multi-scale space-frequency domain feature information, which comprises an image acquisition module, an image accelerated reconstruction module and a prediction output module, and is characterized in that the image acquisition module is used for acquiring an original MRI image; the image acceleration reconstruction module is used for extracting a feature map from the original MRI image, performing energy spectrum weighting and implicit feature alignment on the feature map, and predicting a reconstructed MRI image; and the output module is used for outputting the predicted reconstructed MRI image. According to the method, a Fourier attention mechanism is provided, and spectrum features which are more beneficial to an MRI reconstruction task are extracted in a Fourier domain; according to the method, feature alignment is realized through implicit neural expression, so that features from different network dept