Preconditioners for fractional diffusion equations based on the spectral symbol.
Nikos BarakitisSven-Erik EkströmParis VassalosPublished in: Numer. Linear Algebra Appl. (2022)
Keyphrases
- diffusion equation
- anisotropic diffusion
- edge preserving
- scale space
- diffusion process
- noise removal
- partial differential equations
- image enhancement
- scale spaces
- pattern formation
- boundary conditions
- linear systems
- multiscale
- image restoration
- edge detection
- finite difference
- nonlinear diffusion
- iterative methods
- image analysis
- filtering method
- image processing
- denoising