Image Denoising Using Sparse Representations.
Seyyed Majid ValiollahzadehHamed FirouziMassoud Babaie-ZadehChristian JuttenPublished in: ICA (2009)
Keyphrases
- sparse representation
- dictionary learning
- sparse coding
- wavelet domain
- image classification
- face recognition
- compressed sensing
- compressive sensing
- image patches
- image representation
- regularized least squares
- denoising algorithm
- sparse reconstruction
- dimensionality reduction
- random projections
- high dimensional data
- joint optimization
- manifold learning
- denoising
- signal processing
- test images
- pattern recognition
- norm minimization
- negative matrix factorization
- orthogonal matching pursuit
- data sets
- image denoising
- wavelet coefficients