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An Extrapolation Cascadic Multigrid Method Combined with a Fourth-Order Compact Scheme for 3D Poisson Equation.
Kejia Pan
Dongdong He
Hongling Hu
Published in:
J. Sci. Comput. (2017)
Keyphrases
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fourth order
high order
noise removal
poisson equation
image processing
image analysis
partial differential equations
color images
error rate
filtering method
gradient field