A First Step to Convolutive Sparse Representation
Hamed FirouziMassoud Babaie-ZadehAria Ghasemian SahebiChristian JuttenPublished in: CoRR (2008)
Keyphrases
- sparse representation
- dictionary learning
- sparse coding
- face recognition
- image classification
- compressed sensing
- random projections
- compressive sensing
- image patches
- dimensionality reduction
- reconstruction error
- sparse approximations
- joint optimization
- test images
- high dimensional data
- image representation
- signal processing
- negative matrix factorization
- object tracking
- regularized least squares
- piecewise smooth
- higher order
- sparse reconstruction