Keyphrases
- pattern classification
- feature extraction
- face recognition
- face images
- pattern recognition
- discriminant analysis
- linear discriminant analysis
- feature representation
- sparse representation
- principal component analysis
- preprocessing
- image processing
- facial expressions
- dimensionality reduction
- domain specific
- recognition rate
- feature vectors
- high level
- computer vision
- gabor wavelets
- multiresolution
- data distribution
- feature space
- pose variations
- correlation filters