Level Set Formulation For Dual Snake Models

  • Gilson A. Giraldi
  • Paulo S. S. Rodrigues
  • Rodrigo L. S. Silva
  • Antonio L. ApolinárioJr.
  • Jasjit S. Suri
Part of the Topics in Biomedical Engineering. International Book Series book series (ITBE)

Dual snake models are powerful techniques for boundary extraction and segmentation of 2D images. In these methods one contour contracts from outside the target and another one expands from inside as a balanced technique with the ability to reject local minima. Such approaches have been proposed in the context of parametric snakes and extended for topologically adaptable snake models through the Dual-T-Snakes. In this chapter we present an implicit formulation for dual snakes based on the level set approach. The level set method consists of embedding the snake as the zero level set of a higher-dimensional function and to solve the corresponding equation of motion. The key idea of our work is to view the inner/outer contours as a level set of a suitable embedding function. The mathematical background of the method is explained and its utility for segmentation of cell images discussed in the experimental results. Theoretical aspects are considered and comparisons with parametric dual models presented.


Active Contour Deformable Model Active Contour Model Gradient Vector Flow Medical Imaging Segmentation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Gilson A. Giraldi
    • 1
  • Paulo S. S. Rodrigues
    • 1
  • Rodrigo L. S. Silva
    • 1
  • Antonio L. ApolinárioJr.
    • 1
  • Jasjit S. Suri
    • 2
  1. 1.National Laboratory for Scientific ComputingQuitandinhaBrazil
  2. 2.Biomedical Research InstituteIdaho State UniversityPocatelloUSA

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