Semicirculant Preconditioners for First-Order Partial Differential Equations.
Sverker HolmgrenKurt OttoPublished in: SIAM J. Sci. Comput. (1994)
Keyphrases
- partial differential equations
- anisotropic diffusion
- image denoising
- edge preserving
- level set
- numerical solution
- image processing
- image enhancement
- higher order
- multiscale
- energy functional
- numerical algorithms
- image restoration
- finite difference
- numerical methods
- diffusion equation
- fourth order
- finite difference method
- mathematical morphology
- high order
- numerical scheme
- problems in image processing
- differential equations
- iterative methods
- natural images
- curve evolution
- ambrosio tortorelli
- linear systems
- boundary value problem
- nonlinear diffusion