Extended common molecular and discriminative atom dictionary based sparse representation for face recognition.
Zheng-ping HuFan BaiShuhuan ZhaoMeng WangZhe SunPublished in: J. Vis. Commun. Image Represent. (2016)
Keyphrases
- sparse representation
- face recognition
- sparse codes
- dictionary learning
- sparse coding
- van der waals
- feature extraction
- image classification
- compressive sensing
- compressed sensing
- negative matrix factorization
- random projections
- face images
- image patches
- sparse approximations
- image representation
- discriminative power
- sparse reconstruction
- principal component analysis
- joint optimization
- test images
- dimensionality reduction
- subspace learning
- facial expressions
- high dimensional data
- linear discriminant analysis
- regularized least squares
- illumination variations
- object tracking
- face recognition systems
- probabilistic model
- unsupervised learning
- norm minimization
- sparsity constraints
- machine learning
- multiscale
- sparse coefficients
- three dimensional
- feature selection