Keyphrases
- independent component analysis
- statistically independent
- mixing matrix
- face recognition
- independent components
- preprocessing
- sparse data
- feature extraction
- principal component analysis
- blind source separation
- linear computational complexity
- sparse matrix
- compressed sensing
- random projections
- gaussian noise
- sparse representation
- gaussian distribution
- gaussian mixture model
- blind separation
- natural images
- poisson distribution
- signal processing