Solving the Chan-Vese model by a multiphase level set algorithm based on the topological derivative

  • Authors:
  • Lin He;Stanley Osher

  • Affiliations:
  • Johann Radon Institute for Computational and Applied Mathematics, Linz, Austria;UCLA, Mathematics Department, Los Angeles, CA

  • Venue:
  • SSVM'07 Proceedings of the 1st international conference on Scale space and variational methods in computer vision
  • Year:
  • 2007

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Abstract

In this work, we specifically solve the Chan-Vese active contour model by multiphase level set methods. We first develop a fast algorithm based on calculating the variational energy of the Chan-Vese model without the length term. We check whether the energy decreases or not when we move a point to another segmented region. Then we draw a connection between this algorithm and the topological derivative, a concept emerged from the shape optimization field. Furthermore, to include the length term of the Chan-Vese model, we apply a preprocessing step on the image by using nonlinear diffusion. We show numerical experiments to demonstrate the efficiency and the robustness of our algorithm.