Face Recognition Based on Multi-Wavelet and Sparse Representation.
Lijian ZhouYukai XuZhe-Ming LuTingyuan NiePublished in: J. Inf. Hiding Multim. Signal Process. (2014)
Keyphrases
- sparse representation
- face recognition
- dictionary learning
- image classification
- sparse coding
- compressed sensing
- reconstruction error
- wavelet coefficients
- feature extraction
- sparse approximations
- compressive sensing
- random projections
- image representation
- image patches
- joint optimization
- negative matrix factorization
- piecewise smooth
- wavelet transform
- multiscale
- face images
- signal processing
- subspace learning
- object tracking
- illumination variations
- sparse learning
- sparsity constraints
- norm minimization
- sparse reconstruction
- subband
- unsupervised learning
- sparse coefficients
- multiresolution
- denoising
- principal component analysis
- high dimensional data
- data analysis
- regularized least squares
- linear discriminant analysis
- test images