Alternating direction implicit schemes for the two-dimensional fractional sub-diffusion equation.
Ya-nan ZhangZhi-Zhong SunPublished in: J. Comput. Phys. (2011)
Keyphrases
- diffusion equation
- alternating direction
- scale space
- diffusion process
- anisotropic diffusion
- partial differential equations
- noise removal
- image enhancement
- boundary conditions
- scale spaces
- denoising
- convex optimization
- nonlinear diffusion
- multiscale
- total variation
- piecewise smooth
- filtering method
- group lasso
- image processing
- augmented lagrangian
- image analysis
- preprocessing
- natural images