Kernel based sparse representation for face recognition.
Qi ZhuYong XuJinghua WangZizhu FanPublished in: ICPR (2012)
Keyphrases
- sparse representation
- face recognition
- dictionary learning
- sparse coding
- compressed sensing
- compressive sensing
- regularized least squares
- negative matrix factorization
- face images
- reconstruction error
- image patches
- random projections
- sparse approximations
- support vector machine
- feature extraction
- subspace learning
- illumination variations
- robust face recognition
- high dimensional data
- signal processing
- linear discriminant analysis
- sparse reconstruction
- facial expressions
- kernel methods
- image classification
- piecewise smooth
- joint optimization
- test images
- object tracking
- gabor features
- image representation
- sparse learning
- norm minimization
- training data
- dimensionality reduction
- data sets
- principal component analysis