Image Compression Using Sparse Representations and the Iteration-Tuned and Aligned Dictionary.
Joaquin ZepedaChristine GuillemotEwa KijakPublished in: IEEE J. Sel. Top. Signal Process. (2011)
Keyphrases
- sparse representation
- dictionary learning
- sparse coding
- face recognition
- image classification
- learned dictionary
- compressive sensing
- signal processing
- joint optimization
- image patches
- compressed sensing
- negative matrix factorization
- regularized least squares
- random projections
- image representation
- sparse reconstruction
- high dimensional data
- manifold learning
- test images
- image super resolution
- dimensionality reduction
- machine learning
- objective function