Sparse coding and dictionary learning with class-specific group sparsity.
Yuping SunYuhui QuanJia FuPublished in: Neural Comput. Appl. (2018)
Keyphrases
- dictionary learning
- group sparsity
- sparse coding
- sparse representation
- natural images
- linear combination
- image classification
- unsupervised learning
- discriminative power
- generative model
- image representation
- image patches
- visual words
- high dimensional
- decision trees
- higher order
- small number
- multiscale
- compressive sensing
- feature extraction
- signal processing