An improved neural network infers spatially adaptive sparsity level maps for convolutional dictionaries, enabling filter-permutation invariance and dictionary changes at inference while showing reduced degradation on out-of-distribution low-field MRI data.
In this case, training was carried out using only one dictionaryDwithK= 32filters of sizek f ×k f = 11×11
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Learning spatially adaptive sparsity level maps for arbitrary convolutional dictionaries
An improved neural network infers spatially adaptive sparsity level maps for convolutional dictionaries, enabling filter-permutation invariance and dictionary changes at inference while showing reduced degradation on out-of-distribution low-field MRI data.