Keyphrases
- image denoising
- subspace learning
- sparse representation
- sparse coding
- natural images
- denoising
- sparse and redundant representations
- noisy images
- dimensionality reduction
- total variation
- image processing
- face recognition
- partial differential equations
- image patches
- manifold learning
- high dimensional
- bilateral filtering
- signal processing
- wavelet coefficients
- image classification
- high dimensional data
- denoising methods
- image representation
- low dimensional
- input image
- data representation
- multiscale
- object recognition
- feature space
- linear combination
- higher order
- pattern recognition
- data points
- learning algorithm