A novel fourth-order scheme for two-dimensional Riesz space fractional nonlinear reaction-diffusion equations and its optimal preconditioned solver.
Wei QuYuan-Yuan HuangSean HonSiu-Long LeiPublished in: CoRR (2024)
Keyphrases
- diffusion equation
- fourth order
- reaction diffusion
- noise removal
- anisotropic diffusion
- partial differential equations
- nonlinear diffusion
- high order
- filtering method
- scale space
- image enhancement
- diffusion process
- scale spaces
- denoising
- edge detection
- boundary conditions
- noise reduction
- image interpolation
- image denoising
- vector valued
- finite difference
- image processing
- edge preserving
- numerical solution
- image analysis
- structure tensor
- coherence enhancing diffusion
- estimation error
- higher order
- pattern recognition
- image segmentation
- left invariant
- impulse noise
- gaussian noise
- multiresolution
- computer vision