Natural facial expression recognition using differential-AAM and manifold learning.
Yeongjae CheonDaijin KimPublished in: Pattern Recognit. (2009)
Keyphrases
- manifold learning
- facial expression recognition
- low dimensional
- nonlinear dimensionality reduction
- dimensionality reduction
- dimension reduction
- diffusion maps
- feature extraction
- semi supervised
- high dimensional
- active appearance models
- laplacian eigenmaps
- manifold structure
- subspace learning
- head pose estimation
- high dimensional data
- feature space
- geodesic distance
- sparse representation
- human computer interaction
- euclidean space
- learning process
- locally linear embedding
- facial images
- human faces
- low dimensional manifolds
- neural network