Convolutional Sparse Representations with Gradient Penalties.
Brendt WohlbergPublished in: CoRR (2017)
Keyphrases
- sparse representation
- sparse coding
- dictionary learning
- image classification
- face recognition
- image patches
- compressive sensing
- signal processing
- compressed sensing
- image representation
- joint optimization
- regularized least squares
- high dimensional data
- random projections
- sparse reconstruction
- negative matrix factorization
- pattern recognition
- manifold learning
- dimensionality reduction
- test images
- sparse coefficients
- bag of words
- linear combination
- unsupervised learning
- feature extraction