Numerical solutions for point-source high frequency Helmholtz equation through efficient time propagators for Schrödinger equation.
Matthew JacobsSongting LuoPublished in: J. Comput. Phys. (2021)
Keyphrases
- high frequency
- numerical solution
- hamilton jacobi
- finite difference
- partial differential equations
- heat equation
- low frequency
- wave equation
- nonlinear equations
- differential equations
- high resolution
- eikonal equation
- finite element
- visual quality
- wavelet coefficients
- low order
- wavelet transform
- ordinary differential equations
- high frequency components
- discrete wavelet transform
- level set
- difference equations
- numerical analysis
- distance transform
- subband
- numerical methods
- image enhancement
- super resolution
- anisotropic diffusion
- computer vision