Systematic review of various feature extraction techniques for facial emotion recognition system.
Naveen KumariRekha BhatiaPublished in: Int. J. Intell. Eng. Informatics (2021)
Keyphrases
- feature extraction
- systematic review
- facial expressions
- face recognition
- emotion recognition
- facial expression recognition
- face images
- empirical studies
- facial images
- human faces
- preprocessing
- pattern classification
- facial features
- emotional state
- wavelet transform
- feature vectors
- expression recognition
- pattern recognition
- human emotion
- frequency domain
- local binary pattern
- landmark detection
- principal component analysis
- extracted features
- gabor wavelets
- dimension reduction
- facial muscles
- dimensionality reduction
- texture features
- image classification
- image processing
- audio visual
- feature set
- feature selection
- human identification
- feature representation
- discriminant analysis
- human computer interaction
- support vector machine svm
- face model
- feature extractor
- image preprocessing
- recognition algorithm
- feature space
- facial recognition
- linear feature extraction
- video sequences
- manifold learning