Phase-Optimized K-SVD for Signal Extraction from Underdetermined Multichannel Sparse Mixtures.
Antoine DeleforgeWalter KellermannPublished in: CoRR (2014)
Keyphrases
- mixing matrix
- sparse representation
- blind source separation
- single channel
- source separation
- source signals
- signal reconstruction
- compressive sensing
- radar signal
- dictionary learning
- sparse coding
- independent component analysis
- random projections
- multi channel
- signal processing
- blind separation
- independent components
- sparse codes
- image classification
- compressed sensing
- image patches
- negative matrix factorization
- signal recovery
- basis functions
- frequency domain
- face recognition
- image reconstruction
- non stationary
- image representation
- joint optimization
- natural images
- high dimensional data
- dimensionality reduction
- small image patches
- wiener filter
- blind deconvolution
- nonlinear functions
- image compression
- principal component analysis
- pattern recognition
- feature extraction