An augmented Lagrangian approach to general dictionary learning for image denoising.
Qiegen LiuShanshan WangJianhua LuoYuemin ZhuMeng YePublished in: J. Vis. Commun. Image Represent. (2012)
Keyphrases
- image denoising
- augmented lagrangian
- dictionary learning
- total variation
- natural images
- denoising
- sparse coding
- constrained optimization problems
- sparse representation
- constrained optimization
- convex optimization
- total variation regularization
- partial differential equations
- image processing
- regularization term
- linear programming problems
- wavelet coefficients
- machine learning
- image patches
- optimization problems
- image deblurring
- pattern recognition
- matrix valued