Keyphrases
- feature space
- feature extraction
- principal component analysis
- feature set
- highly informative
- feature vectors
- face recognition
- extracting features
- principal components
- dimensionality reduction
- image features
- classification accuracy
- benchmark datasets
- false positives
- spatial information
- covariance matrix
- singular value decomposition
- low level
- principal components analysis
- principle component analysis
- video sequences
- learning algorithm
- rotational invariant