Fast transform based preconditioners for 2D finite-difference frequency-domain - Waveguides and periodic structures.
Alexandre ChaboryBastiaan P. de HonWil H. A. SchildersAnton G. TijhuisPublished in: J. Comput. Phys. (2008)
Keyphrases
- frequency domain
- finite difference
- fourier transform
- spatial domain
- finite element
- partial differential equations
- numerical solution
- numerical analysis
- cross correlation
- denoising
- level set
- power spectra
- feature extraction
- image restoration
- edge preserving
- subband
- diffusion equation
- fast fourier transform
- anisotropic diffusion
- scale space
- multiscale
- image processing