Image Denoising Based on Sparse Representation over Learned Dictionaries.
Juan WangGuanghui LiFei DuMeng WangYong HuMeng YuAiyun ZhanYuejin ZhangPublished in: CSS (2) (2019)
Keyphrases
- sparse representation
- image denoising
- denoising
- dictionary learning
- noisy images
- natural images
- total variation
- sparse coding
- image classification
- image processing
- face recognition
- wavelet domain
- sparse and redundant representations
- sparse approximations
- image patches
- high dimensional data
- signal processing
- wavelet coefficients
- compressive sensing
- test images
- dimensionality reduction
- piecewise smooth
- image representation
- random projections
- data sets
- norm minimization
- multiscale
- subband