L0-Norm-Based Sparse Representation Through Alternate Projections.
Luis ManceraJavier PortillaPublished in: ICIP (2006)
Keyphrases
- sparse representation
- regularized least squares
- norm minimization
- dictionary learning
- sparse coding
- sparse learning
- negative matrix factorization
- compressive sensing
- face recognition
- image classification
- random projections
- signal processing
- image patches
- three dimensional
- reconstruction error
- image representation
- compressed sensing
- joint optimization
- radon transform
- high dimensional data
- test images
- dimensionality reduction
- objective function
- sparse reconstruction
- sparse approximations
- feature selection
- piecewise smooth
- image features
- sparse codes