An Operator Splitting Preconditioner for Matrices Arising from a Wavelet Boundary Element Method for the Helmholtz equation.
Stuart C. HawkinsKe ChenPaul J. HarrisPublished in: Int. J. Wavelets Multiresolution Inf. Process. (2005)
Keyphrases
- boundary element method
- operator splitting
- numerical methods
- partial differential equations
- multiscale
- image denoising
- denoising
- convex optimization
- numerical solution
- anisotropic diffusion
- finite element method
- wavelet coefficients
- edge preserving
- differential equations
- wavelet transform
- interpolation algorithm
- total variation
- image processing
- image enhancement
- level set
- multiresolution
- singular value decomposition
- energy functional
- heat equation
- curve evolution
- natural images
- numerical simulations
- optical imaging
- least squares
- linear systems
- image restoration
- model selection
- medical images
- motion estimation
- image segmentation