A circulant preconditioner for fractional diffusion equations.
Siu-Long LeiHai-Wei SunPublished in: J. Comput. Phys. (2013)
Keyphrases
- diffusion equation
- fractional order
- iterative methods
- anisotropic diffusion
- scale space
- edge preserving
- diffusion process
- noise removal
- partial differential equations
- boundary conditions
- image enhancement
- scale spaces
- nonlinear diffusion
- least squares
- finite difference
- filtering method
- constrained optimization
- multiscale
- pattern formation
- edge map
- noise reduction
- fourth order
- image denoising
- single image
- edge detection
- denoising
- input image