Exponential Convergence for Multiscale Linear Elliptic PDEs via Adaptive Edge Basis Functions.
Yifan ChenThomas Y. HouYixuan WangPublished in: Multiscale Model. Simul. (2021)
Keyphrases
- basis functions
- multiscale
- partial differential equations
- linear combination
- edge detection
- operator splitting
- linear approximation
- radial basis function
- image processing
- low order
- numerical solution
- state space
- anisotropic diffusion
- wavelet bases
- b spline
- spherical harmonics
- wavelet coefficients
- image denoising
- scale space
- level set
- convergence rate
- set of basis functions
- matching pursuit
- nonlinear functions
- numerical methods
- wavelet domain
- image enhancement
- edge detector
- wavelet transform
- natural images
- signal reconstruction
- zero crossing
- diffusion equation
- least squares
- single scale
- weighted graph