Keyphrases
- pose variations
- face recognition
- illumination variations
- face images
- keypoints
- recognition rate
- face analysis
- video data
- multi pie
- cmu pie
- illumination conditions
- video sequences
- face databases
- object tracking
- principal component analysis
- sparse representation
- recognition accuracy
- image processing
- feature extraction
- face recognition algorithms
- training set
- facial expressions
- random forests
- facial expression recognition
- partial occlusion
- lighting conditions
- video frames
- human faces
- single image