Spatiotemporal dictionary learning for undersampled dynamic MRI reconstruction via joint frame-based and dictionary-based sparsity.
Suyash P. AwateEdward V. R. Di BellaPublished in: ISBI (2012)
Keyphrases
- dictionary learning
- sparse representation
- sparsity constraints
- image super resolution
- compressed sensing
- sparse coding
- single image super resolution
- compressive sensing
- high resolution
- face recognition
- image classification
- medical images
- magnetic resonance imaging
- image reconstruction
- negative matrix factorization
- image representation
- group sparsity
- magnetic resonance images
- unsupervised learning
- image patches
- low rank
- mri data
- semi supervised
- ground truth
- active learning
- high dimensional data
- dictionary learning for sparse