Human Facial Expression Recognition Using Stepwise Linear Discriminant Analysis and Hidden Conditional Random Fields.
Muhammad Hameed SiddiqiRahman AliAdil Mehmood KhanYoung-Tack ParkSungyoung LeePublished in: IEEE Trans. Image Process. (2015)
Keyphrases
- linear discriminant analysis
- discriminant analysis
- dimensionality reduction
- face recognition
- principal component analysis
- dimension reduction
- small sample size
- hidden conditional random fields
- null space
- support vector machine svm
- high dimensional data
- support vector
- feature extraction
- discriminant features
- feature space
- linear discriminant
- class separability
- fisher criterion
- scatter matrix
- data analysis
- nearest neighbor
- hidden markov models
- computer vision
- high dimensional
- image processing