On the Strong Uniqueness of Highly Sparse Representations from Redundant Dictionaries.
Rémi GribonvalMorten NielsenPublished in: ICA (2004)
Keyphrases
- sparse representation
- dictionary learning
- sparse coding
- face recognition
- image patches
- image representation
- image classification
- sparse approximations
- dimensionality reduction
- joint optimization
- compressed sensing
- negative matrix factorization
- high dimensional data
- object tracking
- random projections
- regularized least squares
- sparse reconstruction
- test images
- machine learning
- data sets
- compressive sensing
- signal processing
- nearest neighbor
- decision trees
- norm regularization
- computer vision