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A vertex-centered and positivity-preserving scheme for anisotropic diffusion problems on arbitrary polygonal grids.
Xiaoping Zhang
Shuai Su
Jiming Wu
Published in:
J. Comput. Phys. (2017)
Keyphrases
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anisotropic diffusion
partial differential equations
edge detection
diffusion process
nonlinear filtering
multiscale
edge preserving
noise removal
bilateral filtering
image restoration
diffusion tensor
fourth order
edge enhancement