Atlas Construction via Dictionary Learning and Group Sparsity.
Feng ShiLi WangGuorong WuYu ZhangManhua LiuJohn H. GilmoreWeili LinDinggang ShenPublished in: MICCAI (1) (2012)
Keyphrases
- group sparsity
- dictionary learning
- sparse coding
- sparse representation
- diffusion tensor
- natural images
- tensor field
- structured sparsity
- dt mri
- image patches
- discriminative power
- linear combination
- unsupervised learning
- training set
- low rank
- visual words
- mr images
- riemannian metric
- generative model
- image classification
- signal processing