Improving the Dictionary Construction in Sparse Representation using PCANet for Face Recognition.
Peiyu KangYonggang LuDiqi PanWenjie GuoPublished in: ICPRAM (2019)
Keyphrases
- sparse representation
- face recognition
- dictionary learning
- sparse coding
- sparse approximations
- reconstruction error
- image patches
- signal processing
- image classification
- learned dictionary
- compressive sensing
- random projections
- high dimensional data
- dimensionality reduction
- object tracking
- face images
- compressed sensing
- subspace learning
- computer vision
- joint optimization
- image representation
- feature extraction
- negative matrix factorization
- piecewise smooth
- sparsity constraints
- sparse reconstruction
- illumination variations
- principal component analysis
- linear discriminant analysis
- image super resolution
- sparse codes
- test images
- object recognition
- nearest neighbor
- sparse coefficients
- neural network