Keyphrases
- metric learning
- head pose estimation
- person independent
- pose estimation
- dimensionality reduction
- manifold learning
- semi supervised
- subspace learning
- visual tracking
- pairwise
- feature space
- random forests
- facial expression recognition
- depth images
- facial features
- image processing
- pose variations
- head motion
- high dimensional data
- unsupervised learning
- low dimensional
- distance measure