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On Mean Curvature Diffusion in Nonlinear Image £ltering

  • Author(s): El-Fallah, Adel
  • Ford, Gary
  • et al.
Abstract

Mean curvature diffusion is shown to be a position vector diffusion, tending to scalar diffusion as a flat image region is approached, and providing noise removal by steepest decent surface minimization. At edges, it swithches to a nondiffusion state due to two factors: the Laplacian of position vanishes and the magnitude of the surface normal attains a local maximum.

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