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An EXCMG accelerated multiscale multigrid computation for 3D Poisson equation.
Ruxin Dai
Pengpeng Lin
Jun Zhang
Published in:
Comput. Math. Appl. (2019)
Keyphrases
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multiscale
poisson equation
boundary conditions
image processing
natural images
gradient domain
wavelet transform
image segmentation
scale space
gradient field
multiresolution
partial differential equations
shape from shading
computer vision
gray scale
boundary value problem