A fast direct solver for a fourth order finite difference scheme for Poisson's equation on the unit disc in polar coordinates.
Bernard BialeckiLyndsey WrightPublished in: Numer. Algorithms (2015)
Keyphrases
- finite difference
- fourth order
- partial differential equations
- polar coordinates
- numerical solution
- hamilton jacobi
- anisotropic diffusion
- diffusion equation
- level set
- noise removal
- high order
- image denoising
- numerical methods
- image processing
- image enhancement
- zernike moments
- multiscale
- differential equations
- image interpolation
- nonlinear diffusion
- finite element
- numerical analysis
- fourier transform
- filtering method
- active contours