Histogram distance metric learning for facial expression recognition.
Hamid SadeghiAbolghasem A. RaiePublished in: J. Vis. Commun. Image Represent. (2019)
Keyphrases
- facial expression recognition
- distance metric learning
- distance metric
- metric learning
- facial expressions
- image classification
- human computer interaction
- gender classification
- semi supervised
- feature extraction
- facial images
- gray level
- semidefinite programming
- face recognition
- nonlinear dimensionality reduction
- local binary pattern
- dimensionality reduction
- human faces
- learning tasks
- facial features
- mean shift
- euclidean distance
- face detection
- data points
- spatial information
- discriminant analysis
- hidden markov models
- active learning
- detection algorithm
- pairwise
- multi class
- image database