Subclass discriminant Nonnegative Matrix Factorization for facial image analysis.
Symeon NikitidisAnastasios TefasNikos NikolaidisIoannis PitasPublished in: Pattern Recognit. (2012)
Keyphrases
- nonnegative matrix factorization
- facial image analysis
- principal component analysis
- facial expression recognition
- face recognition
- human faces
- negative matrix factorization
- probabilistic latent semantic indexing
- matrix factorization
- data representation
- face images
- feature extraction
- least squares
- facial expressions
- spectral clustering
- dimensionality reduction
- facial features
- face detection
- low dimensional
- objective function
- original data
- document clustering
- facial images
- pattern recognition
- image classification