Non-Local SVD Denoising of MRI Based on Sparse Representations.
Nallig LealEduardo E. ZurekEsmeide LealPublished in: Sensors (2020)
Keyphrases
- sparse representation
- denoising
- singular value decomposition
- reconstruction error
- dimensionality reduction
- dictionary learning
- image denoising
- sparse coding
- image classification
- noisy images
- total variation
- face recognition
- image processing
- compressed sensing
- natural images
- random projections
- signal processing
- compressive sensing
- image patches
- negative matrix factorization
- joint optimization
- regularized least squares
- high resolution
- image representation
- piecewise smooth
- least squares
- gaussian noise
- singular values
- feature selection
- high dimensional data
- principal component analysis
- pattern recognition
- dimension reduction
- unsupervised learning
- machine learning
- sparse reconstruction