Local sparse representation projections for face recognition.
Zhihui LaiYajing LiMinghua WanZhong JinPublished in: Neural Comput. Appl. (2013)
Keyphrases
- sparse representation
- face recognition
- dictionary learning
- sparse coding
- reconstruction error
- image patches
- random projections
- face images
- compressive sensing
- illumination variations
- image classification
- subspace learning
- three dimensional
- regularized least squares
- principal component analysis
- dimensionality reduction
- object tracking
- computer vision
- compressed sensing
- high dimensional data
- test images
- sparse approximations
- sparse reconstruction
- signal processing
- linear discriminant analysis
- feature extraction
- image processing
- joint optimization
- facial expressions
- robust face recognition
- sparsity constraints
- sparse learning
- image representation
- denoising
- piecewise smooth
- data sets
- norm minimization
- sparse codes
- sparse coefficients