Face recognition algorithm based on discriminative dictionary learning and sparse representation.
Zhenyu LuLinghua ZhangPublished in: Neurocomputing (2016)
Keyphrases
- recognition algorithm
- dictionary learning
- sparse representation
- sparse codes
- sparse coding
- image super resolution
- image classification
- group sparsity
- discriminative power
- face recognition
- image patches
- random projections
- signal processing
- high dimensional data
- sparsity constraints
- compressive sensing
- negative matrix factorization
- dimensionality reduction
- single image super resolution
- semi supervised
- bag of words
- test images
- image representation
- visual features
- unsupervised learning
- em algorithm
- face images
- facial expressions
- small number
- feature extraction