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Title: A real time morphological snakes algorithm
Authors: Alvarez, Luis 
Baumela, Luis
Marquez-Neila, Pablo
Henríquez Castellano, Pedro 
UNESCO Clasification: 1206 Análisis numérico
120601 Construcción de algoritmos
Keywords: Snakes
Issue Date: 2012
Journal: Image Processing On Line 
Abstract: Active contours, or snakes, are computer-generated curves that move within images to find out salient image structures like object boundaries. Energy based formulations using a level set approach have been successfully used to model the snake evolution. The Euler-Lagrange equation associated to such energies yields to partial differential equations (PDE) which are usually solved using level set methods which involve contour distance function estimation and standard methods to discretize the PDE. Recently we have proposed a morphological approach to snake evolution. First, we observe that the differential operators used in the standard PDE snake models can be approached using morphological operations. By combining the morphological operators associated to the PDE components we achieve a new morphological approach to the PDE snakes evolution. This new approach is based on numerical methods which are very simple and fast. Moreover, since the level set is just a binary piecewise constant function, this approach does not require to estimate a contour distance function to define the level set. In this paper we present an algorithm to compute morphological snake evolution in real time.
ISSN: 2105-1232
DOI: 10.5201/ipol.2012.abmh-rtmsa
Source: Image Processing On Line ISSN [ 2105-1232], v. 2, p. 1-7, (2012)
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