Hierarchical Sparse Dictionary Learning.
Xiao BianXia NingGeoff JiangPublished in: ECML/PKDD (2) (2015)
Keyphrases
- dictionary learning
- sparse representation
- sparse coding
- classifier training
- image super resolution
- sparse codes
- group sparsity
- discriminative dictionary
- unsupervised learning
- signal recovery
- image classification
- natural images
- sparsity constraints
- object category recognition
- dictionary learning for sparse
- neural network
- face recognition