Mixed Noise Removal by Bilateral Weighted Sparse Representation.
Jiechao ShengGuoqiang LvZhitian XueLei WuQibin FengPublished in: Circuits Syst. Signal Process. (2021)
Keyphrases
- sparse representation
- noise removal
- dictionary learning
- anisotropic diffusion
- denoising
- image enhancement
- sparse coding
- fourth order
- noise reduction
- edge detection
- image classification
- diffusion filtering
- image patches
- high dimensional data
- compressed sensing
- gaussian noise
- joint optimization
- compressive sensing
- signal processing
- dimensionality reduction
- face recognition
- test images
- image representation
- piecewise smooth
- impulse noise
- sparse coefficients
- bilateral filter
- diffusion equation
- image features
- natural images
- partial differential equations
- feature selection