ELCVIA

ELCVIA 3 records found  Search took 0.02 seconds. 
1.
11 p, 2.5 MB An Appearance-Based Method for Parametric Video Registration / Orriols, Xavier (Centre de Visió per Computador (Bellaterra, Catalunya)) ; Binefa i Valls, Xavier (Centre de Visió per Computador (Bellaterra, Catalunya)) ; Barceló Dachs, Lluis (Centre de Visió per Computador (Bellaterra, Catalunya))
In this paper we address the problem of multi frame video registration using the combination of an appearance-based technique and a parametric model of the transformations. This technique uses an image that is selected as reference frame, and therefore, estimates the transformation that occurred to each frame in the sequence respect to this absolute referenced one. [...]
2003 - 10.5565/rev/elcvia.62
ELCVIA : Electronic Letters on Computer Vision and Image Analysis, V. 2 n. 1 (2003) p. 1-11  
2.
13 p, 574.4 KB MRF-based image segmentation using Ant Colony System / Salima, Ouadfel (Mentouri University (Algèria). Computer Science Department) ; Mohamed, Batouche (Mentouri University (Algèria). Computer Science Department)
In this paper, we propose a novel method for image segmentation that we call ACS-MRF method. ACS-MRF is a hybrid ant colony system coupled with a local search. We show how a colony of cooperating ants are able to estimate the labels field and minimize the MAP estimate. [...]
2003 - 10.5565/rev/elcvia.63
ELCVIA : Electronic Letters on Computer Vision and Image Analysis, V. 2 n. 1 (2003) p. 12-24  
3.
12 p, 198.3 KB Potential Fields as an External Force and Algorithmic Improvements in Deformable Models / Caro Lindo, Andrés (Universidad de Extremadura. Departamento de Informática) ; García Rodríguez, Pablo (Universidad de Extremadura. Departamento de Informática) ; Cernadas García, Eva (Universidade de Vigo. Departamento de Informática) ; Antequera Rojas, Teresa (Universidad de Extremadura. Departamento de Producción Animal y Ciencias de los Alimentos) ; Durán Martín-Merás, María Luisa (Universidad de Extremadura. Departamento de Informática)
Deformable Models are extensively used as a Pattern Recognition technique. They are curves defined within an image domain that can be moved under the influence of internal and external forces. Some trade-offs of standard deformable models algorithms are the selection of image energy function (external force), the location of initial snake and the attraction of contour points to local energy minima when the snake is being deformed. [...]
2003 - 10.5565/rev/elcvia.64
ELCVIA : Electronic Letters on Computer Vision and Image Analysis, V. 2 n. 1 (2003) p. 25-36  

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