Dictionary Learning and Time Sparsity in Dynamic MRI.
Jose CaballeroDaniel RueckertJoseph V. HajnalPublished in: MICCAI (1) (2012)
Keyphrases
- dictionary learning
- sparse representation
- sparse coding
- sparsity constraints
- image super resolution
- object category recognition
- face recognition
- image classification
- dictionary learning for sparse
- medical images
- high dimensional
- neural network
- image representation
- group sparsity
- nearest neighbor
- image patches
- negative matrix factorization
- magnetic resonance images
- computer vision
- sparse codes
- feature selection
- multiscale
- mri data
- magnetic resonance imaging
- high resolution
- high dimensional data
- dimensionality reduction
- signal processing