Quaternion-Based Dictionary Learning and Saturation-Value Total Variation Regularization for Color Image Restoration.
Chaoyan HuangMichael K. NgTingting WuTieyong ZengPublished in: IEEE Trans. Multim. (2022)
Keyphrases
- total variation
- sparse coding
- sparse representation
- image deblurring
- natural images
- image denoising
- denoising
- image restoration
- augmented lagrangian
- image processing
- convex optimization
- image classification
- image patches
- generative model
- linear combination
- image representation
- noisy images
- face recognition
- signal processing
- regularization term
- high dimensional data
- partial differential equations
- feature space
- blurred images
- higher order
- prior knowledge
- object recognition
- regularization parameter
- edge preserving
- piecewise smooth