Signal Sparsity Enhancement Through Wavelet Transforms in Underdetermined BSS.
Eraldo PomponiStefano SquartiniFrancesco PiazzaPublished in: Summer School on Neural Networks (2004)
Keyphrases
- mixing matrix
- source signals
- blind source separation
- wavelet transform
- independent component analysis
- high frequency
- source separation
- low frequency
- blind signal separation
- wavelet analysis
- sparse representation
- compressive sampling
- non stationary
- independent components
- signal processing
- blind separation
- random projections
- frequency domain
- compressive sensing
- image enhancement
- high dimensional
- wavelet transformation
- hyperplane
- image processing
- wavelet packet
- hilbert transform
- blind deconvolution
- image coding
- multiscale
- multiresolution
- single channel
- compressed sensing
- image compression
- nonlinear functions
- principal component analysis
- filter coefficients
- dimensionality reduction
- wavelet filters
- subband
- hyperspectral images
- filter bank
- complex wavelet transform
- feature extraction
- face recognition