Parallel preconditioners and multigrid solvers for stochastic polynomial chaos discretizations of the diffusion equation at the large scale.
Barry LeePublished in: Numer. Linear Algebra Appl. (2016)
Keyphrases
- diffusion equation
- partial differential equations
- anisotropic diffusion
- boundary conditions
- edge preserving
- scale space
- diffusion process
- image enhancement
- noise removal
- scale spaces
- multiscale
- diffusion coefficient
- image denoising
- piecewise smooth
- finite difference
- nonlinear diffusion
- image analysis
- image processing
- level set
- multiresolution
- filtering method
- neural network
- differential equations
- sufficient conditions
- edge detection
- linear systems
- edge map
- image restoration
- computer vision