A Novel Nonlinear Second Order Hyperbolic Partial Differential Equation-Based Image Restoration Algorithm With Directional Diffusion.
Shuaijie LiZhanjiang ZhiPublished in: IEEE Access (2020)
Keyphrases
- partial differential equations
- restoration algorithm
- perona malik
- anisotropic diffusion
- diffusion equation
- energy functional
- nonlinear diffusion
- finite difference
- fourth order
- multiscale
- image restoration
- difference equations
- scale spaces
- image denoising
- high order
- input image
- level set
- image processing
- conservation laws
- diffusion process
- numerical scheme
- image features
- noise variance
- scale space
- degraded images
- image data
- image analysis
- edge detection
- post processing
- image enhancement
- gaussian noise
- image noise
- higher order
- noise level
- high resolution
- multiresolution
- image structure
- test images
- segmentation method
- pairwise
- similarity measure
- natural images
- face recognition