Keyphrases
- pose variations
- face recognition
- face images
- multi pie
- keypoints
- cmu pie
- recognition rate
- human faces
- face databases
- illumination variations
- local binary pattern
- principal component analysis
- active appearance models
- facial expressions
- lighting conditions
- facial features
- computer vision
- facial expression recognition
- illumination conditions
- data sets
- image sequences
- image database
- image processing
- training set
- feature extraction