Optimal sparse representations in general overcomplete bases.
Dmitry M. MalioutovMüjdat ÇetinAlan S. WillskyPublished in: ICASSP (2) (2004)
Keyphrases
- sparse representation
- joint optimization
- sparse coding
- dictionary learning
- special case
- compressive sensing
- sparse coefficients
- face recognition
- image classification
- object tracking
- image patches
- compressed sensing
- negative matrix factorization
- dimensionality reduction
- random projections
- regularized least squares
- neural network
- high dimensional data
- computer vision
- sparse learning
- basis functions
- natural images
- sparse reconstruction
- single image super resolution
- data mining