Machine Vision and Applications

, Volume 12, Issue 5, pp 238–242 | Cite as

Robust parametric active contours: the Sandwich Snakes

  • Fernando A. Velasco
  • José L. Marroquín
Original papers


Snakes are active contours that minimize an energy function. We present a new kind of active contours called “Sandwich Snakes”. They are formed by two snakes, one inside and the other outside of the curve that one is looking for. They have the same number of particles, which are connected in one-to-one correspondence. At the minimum the two snakes have the same position. We also present here a multi-scale system, where Sandwich Snakes are adjusted at increasing resolutions, and an interactive tool that permits one to easily specify the initial position for the Sandwich Snakes. Sandwich Snakes exhibit very good perfomance detecting contours with complex shapes, where the traditional methods fail. They are also very robust with respect to noise.

Key words: Snakes – Active contours – Mutiscale – Particle systems 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2001

Authors and Affiliations

  • Fernando A. Velasco
    • 1
  • José L. Marroquín
    • 2
  1. 1.Universidad Michoacana S.N.H., Ed. C, Planta baja, Ciudad Universitaria, Morelia, Mich. 58000, Mexico; e-mail: MX
  2. 2.Centro de Investigación en Matemáticas, A.C., Apdo. Postal 402, Guanajuato, Gto. 36000, Mexico; e-mail: MX

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