Coherence-based near-oracle performance guarantees for sparse estimation under Gaussian noise.
Zvika Ben-HaimYonina C. EldarMichael EladPublished in: ICASSP (2010)
Keyphrases
- gaussian noise
- denoising
- noisy images
- noise level
- image restoration
- white noise
- noise model
- noise removal
- signal to noise ratio
- piecewise smooth
- impulse noise
- jpeg compression
- noise suppression
- oracle database
- median filtering
- impulsive noise
- noise variance
- salt and pepper noise
- high dimensional
- hard thresholding
- degraded images
- image denoising