Robust parametric active contours: the Sandwich Snakes |
| |
Authors: | Fernando A Velasco José L Marroquín |
| |
Affiliation: | (1) Universidad Michoacana S.N.H., Ed. C, Planta baja, Ciudad Universitaria, Morelia, Mich. 58000, Mexico; e-mail: fvelasco@zeus.ccu.umich.mx , MX;(2) Centro de Investigación en Matemáticas, A.C., Apdo. Postal 402, Guanajuato, Gto. 36000, Mexico; e-mail: jlm@cimat.mx , MX |
| |
Abstract: | 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.
Received: 29 January 1999 / Accepted: 20 August 2000 |
| |
Keywords: | : Snakes – Active contours – Mutiscale – Particle systems |
本文献已被 SpringerLink 等数据库收录! |
|