Covariance Eigenvector Sparsity for Compression and Denoising
Ioannis D. SchizasGeorgios B. GiannakisPublished in: CoRR (2012)
Keyphrases
- denoising
- basis pursuit
- covariance matrix
- image denoising
- image processing
- noisy images
- total variation
- compression scheme
- image compression
- natural images
- data compression
- noise removal
- compression algorithm
- denoising methods
- compression ratio
- sparse representation
- wavelet domain
- high dimensional
- denoising algorithm
- linear combination
- covariance matrices
- gaussian noise
- spectral clustering
- singular value decomposition
- convex optimization
- computational complexity
- noise level
- least squares
- pairwise
- wavelet denoising