An approximate inverse preconditioner for spatial fractional diffusion equations with piecewise continuous coefficients.
Zhi-Wei FangHai-Wei SunHui-Qin WeiPublished in: Int. J. Comput. Math. (2020)
Keyphrases
- piecewise continuous
- diffusion equation
- anisotropic diffusion
- scale space
- diffusion process
- pattern formation
- edge preserving
- partial differential equations
- boundary conditions
- low frequency
- image analysis
- pixel values
- noise removal
- wavelet coefficients
- noisy images
- filtering method
- scale spaces
- nonlinear diffusion
- post processing
- multiresolution