Dictionary Optimization for Block-Sparse Representations.
Kevin RosenblumLihi Zelnik-ManorYonina C. EldarPublished in: AAAI Fall Symposium: Manifold Learning and Its Applications (2010)
Keyphrases
- sparse representation
- joint optimization
- dictionary learning
- sparse coding
- norm minimization
- image classification
- negative matrix factorization
- face recognition
- orthogonal matching pursuit
- image representation
- image patches
- random projections
- compressive sensing
- signal processing
- learned dictionary
- compressed sensing
- regularized least squares
- high dimensional data
- manifold learning
- dimensionality reduction
- multiscale
- sparse coefficients
- image super resolution
- data mining