Sparse Representation of Musical Signals Using Source-Specific Dictionaries.
Namgook ChoC.-C. Jay KuoPublished in: IEEE Signal Process. Lett. (2010)
Keyphrases
- sparse representation
- signal processing
- dictionary learning
- sparse coding
- blind source separation
- image classification
- negative matrix factorization
- image representation
- face recognition
- regularized least squares
- random projections
- object tracking
- reconstruction error
- compressive sensing
- image patches
- joint optimization
- compressed sensing
- sparse approximations
- learned dictionary
- high dimensional data
- dimensionality reduction
- norm minimization
- sparsity constraints
- sparse reconstruction
- piecewise smooth
- data points
- sparse learning
- single image super resolution
- sparse codes
- image processing
- data sets