A Fast Direct Solver for Elliptic PDEs on a Hierarchy of Adaptively Refined Quadtrees.
Damyn ChipmanDonna A. CalhounCarsten BursteddePublished in: CoRR (2024)
Keyphrases
- partial differential equations
- quadtree
- level set
- higher level
- image denoising
- image processing
- anisotropic diffusion
- data structure
- energy functional
- r tree
- numerical methods
- lower level
- differential equations
- numerical algorithms
- boundary value problem
- fourth order
- numerical solution
- high order
- tree structure
- neural network
- denoising
- multiscale
- multiresolution
- image enhancement