The Iteration-Tuned Dictionary for sparse representations.
Joaquin ZepedaChristine GuillemotEwa KijakPublished in: MMSP (2010)
Keyphrases
- sparse representation
- dictionary learning
- sparse coding
- face recognition
- learned dictionary
- image patches
- compressed sensing
- image classification
- compressive sensing
- signal processing
- random projections
- sparse reconstruction
- joint optimization
- dimensionality reduction
- high dimensional data
- regularized least squares
- negative matrix factorization
- objective function
- higher order
- image representation
- multiscale
- image super resolution
- manifold learning
- norm minimization
- norm regularization
- face images
- single image super resolution
- data sets