Keyphrases
- sparse representation
- compressive sensing
- signal processing
- dictionary learning
- sparse coding
- face recognition
- random projections
- compressed sensing
- reconstruction error
- image classification
- object tracking
- image patches
- dimensionality reduction
- sparse approximations
- joint optimization
- piecewise smooth
- test images
- high dimensional data
- frequency domain
- object detection
- sparsity constraints
- negative matrix factorization
- image representation
- regularized least squares
- sparse learning
- sparse reconstruction
- pattern recognition