Efficient Global Spatial-Angular Sparse Coding for Diffusion MRI with Separable Dictionaries.
Evan SchwabRené VidalNicolas CharonPublished in: CoRR (2016)
Keyphrases
- sparse coding
- sparse representation
- dictionary learning
- sparse codes
- image classification
- linear combination
- diffusion mri
- natural images
- feature space
- image patches
- spatial information
- unsupervised learning
- image representation
- low resolution
- test images
- generative model
- dimensionality reduction
- white matter
- higher order
- high dimensional
- machine learning
- discriminative dictionary