Dictionary learning in the analysis sparse representation with optimization on Stiefel manifold.
Yujie LiShuxue DingZhenni LiXiang LiBenying TanPublished in: GlobalSIP (2017)
Keyphrases
- sparse representation
- dictionary learning
- sparse coding
- joint optimization
- compressive sensing
- image classification
- image super resolution
- manifold learning
- face recognition
- image representation
- compressed sensing
- signal processing
- high dimensional data
- negative matrix factorization
- group sparsity
- graph embedding
- random projections
- sparsity constraints
- image patches
- natural images
- image processing
- single image super resolution
- machine learning