Edge-based nonlinear diffusion for finite element approximations of convection-diffusion equations and its relation to algebraic flux-correction schemes.
Gabriel R. BarrenecheaErik BurmanFotini KarakatsaniPublished in: Numerische Mathematik (2017)
Keyphrases
- diffusion equation
- finite element
- nonlinear diffusion
- anisotropic diffusion
- finite difference
- scale space
- numerical scheme
- diffusion process
- partial differential equations
- scale spaces
- diffusion processes
- noise removal
- image enhancement
- boundary conditions
- finite element method
- structure tensor
- numerical solution
- edge detection
- filtering method
- vector field
- numerical methods
- coherence enhancing diffusion
- edge preserving
- active contours
- mathematical morphology
- image denoising
- input image
- multiscale