Stagewise K-SVD to Design Efficient Dictionaries for Sparse Representations.
Cristian RusuBogdan DumitrescuPublished in: IEEE Signal Process. Lett. (2012)
Keyphrases
- sparse representation
- dictionary learning
- sparse coding
- image classification
- joint optimization
- image patches
- face recognition
- reconstruction error
- signal processing
- regularized least squares
- negative matrix factorization
- image processing
- sparse reconstruction
- dimensionality reduction
- pattern recognition
- random projections
- compressive sensing
- sparse codes
- image representation
- pairwise