Laplacian sparse dictionary learning for image classification based on sparse representation.
Fang LiJia ShengSanyuan ZhangPublished in: Frontiers Inf. Technol. Electron. Eng. (2017)
Keyphrases
- dictionary learning
- sparse representation
- image classification
- sparse coding
- image representation
- group sparsity
- sparse codes
- bag of words
- image patches
- image super resolution
- compressive sensing
- discriminative power
- feature extraction
- compressed sensing
- image features
- sparsity constraints
- single image super resolution
- visual words
- sparse coefficients
- negative matrix factorization
- random projections
- pattern recognition
- dimensionality reduction
- multiscale
- training data
- data sets