Keyphrases
- facial expression recognition
- local binary pattern
- facial expressions
- human computer interaction
- face recognition
- expression recognition
- facial expression analysis
- feature point tracking
- keypoints
- feature extraction
- person independent
- multiscale
- expression classification
- facial feature extraction
- sift descriptors
- texture analysis
- rotation invariant
- facial image analysis
- recognizing facial expressions
- pose invariant
- facial features
- background subtraction
- face detection
- texture features
- human faces
- spatial information
- expert systems
- cohn kanade
- image processing
- facial images
- active appearance models
- training set
- three dimensional