Two-Stage Nonnegative Sparse Representation for Large-Scale Face Recognition.
Ran HeWei-Shi ZhengBao-Gang HuXiangwei KongPublished in: IEEE Trans. Neural Networks Learn. Syst. (2013)
Keyphrases
- sparse representation
- face recognition
- dictionary learning
- sparse coding
- compressive sensing
- compressed sensing
- image classification
- image patches
- negative matrix factorization
- random projections
- joint optimization
- face images
- test images
- sparse approximations
- subspace learning
- nonnegative matrix factorization
- object tracking
- computer vision
- feature extraction
- principal component analysis
- dimensionality reduction
- signal processing
- image representation
- illumination variations
- high dimensional data
- regularized least squares
- norm minimization
- sparse codes
- linear programming
- unsupervised learning
- linear discriminant analysis
- graph embedding
- robust face recognition
- sparse representation based classification
- data mining