Sparse Representation with Nonlinear Fourier Atoms.
Bruce W. SuterYi WangPublished in: Adv. Data Sci. Adapt. Anal. (2016)
Keyphrases
- sparse representation
- dictionary learning
- sparse coding
- image classification
- face recognition
- sparse approximations
- fourier transform
- linear combination
- regularized least squares
- reconstruction error
- signal processing
- image representation
- high dimensional data
- joint optimization
- compressive sensing
- compressed sensing
- radon transform
- random projections
- dimensionality reduction
- image patches
- frequency domain
- negative matrix factorization
- piecewise smooth
- test images
- data mining
- sparsity constraints
- sparse learning