Nonlocal Hierarchical Dictionary Learning Using Wavelets for Image Denoising.
Ruomei YanLing ShaoYan LiuPublished in: IEEE Trans. Image Process. (2013)
Keyphrases
- image denoising
- dictionary learning
- sparse coding
- natural images
- denoising
- sparse representation
- image processing
- noisy images
- total variation
- wavelet coefficients
- multiscale
- partial differential equations
- wavelet transform
- nonlocal means
- multiresolution
- wavelet domain
- denoising algorithm
- signal processing
- bilateral filtering
- image compression
- feature extraction
- higher order
- computer vision
- wavelet packet
- object recognition
- denoising methods
- image deblurring
- directional filter banks
- image representation
- singularity detection
- test images
- pattern recognition
- generative model
- noise level
- image inpainting
- edge detection