The two-level finite difference schemes for the heat equation with nonlocal initial condition.
Jesús Martín-VaqueroSvajunas SajaviciusPublished in: Appl. Math. Comput. (2019)
Keyphrases
- heat equation
- finite difference
- partial differential equations
- image denoising
- diffusion equation
- numerical solution
- anisotropic diffusion
- denoising
- scale space
- diffusion process
- scale spaces
- level set
- image processing
- natural images
- gaussian kernel
- noisy images
- multiscale
- energy functional
- finite element
- steady state
- numerical analysis
- differential equations
- image smoothing
- curve evolution
- image enhancement
- numerical methods
- wavelet coefficients
- nonlinear diffusion
- high order
- higher order