Higher order Galerkin time discretizations and fast multigrid solvers for the heat equation.
Shafqat HussainFriedhelm SchieweckStefan TurekPublished in: J. Num. Math. (2011)
Keyphrases
- heat equation
- partial differential equations
- higher order
- high order
- image denoising
- natural images
- anisotropic diffusion
- image processing
- level set
- multiscale
- pairwise
- differential equations
- image enhancement
- scale spaces
- numerical methods
- markov random field
- diffusion equation
- image analysis
- scale space
- nonlinear diffusion
- curve evolution
- multiresolution
- image sequences
- diffusion process
- edge preserving
- image features