FFT, FMM, or Multigrid? A comparative Study of State-Of-the-Art Poisson Solvers for Uniform and Nonuniform Grids in the Unit Cube.
Amir GholamiDhairya MalhotraHari SundarGeorge BirosPublished in: SIAM J. Sci. Comput. (2016)
Keyphrases
- image analysis
- multiscale
- frequency domain
- multiresolution
- closed form
- fourier transform
- partial differential equations
- poisson process
- multi dimensional
- orders of magnitude
- data cube
- fast fourier transform
- boundary conditions
- fourier transformation
- edge preserving
- grid computing
- shape from shading
- floating point
- finite difference
- sat solvers
- grid points
- emission tomography
- poisson distribution
- negative binomial
- inverse problems in image processing