Face recognition using feature coding and nonlocal constraint-based sparse representation classifier.
Mengmeng LiaoXiaodong GuPublished in: J. Electronic Imaging (2018)
Keyphrases
- sparse representation
- dictionary learning
- feature set
- sparse coding
- face recognition
- image classification
- face images
- compressive sensing
- feature space
- reconstruction error
- image patches
- random projections
- signal processing
- compressed sensing
- high dimensional data
- sparse approximations
- training samples
- joint optimization
- sparse reconstruction
- image representation
- image features
- feature vectors
- learning algorithm
- feature selection
- facial expressions
- object tracking
- support vector
- pattern recognition
- regularized least squares
- training data
- video sequences
- dimensionality reduction
- test images
- weak classifiers
- feature subset
- data points
- image segmentation
- nearest neighbor
- norm minimization
- principal component analysis
- sparse codes
- machine learning