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Communications at congresses:
A new approach for the glotis segmentation using Snakes
Year:2013
Research Areas
  • Electronic technology and of the communications
Information
Abstract
The present work describes a new methodology for the automatic detection of the glottal space from laryngeal images based on active contour models (snakes). In order to obtain an appropriate image for the use of snakes based techniques, the proposed algorithm combines a pre-processing stage including some traditional techniques (thresholding and median filter) with more sophisticated ones such as anisotropic filtering. The value selected for the thresholding was fixed to the 85% of the maximum peak of the image histogram, and the anisotropic filter permits to distinguish two intensity levels, one corresponding to the background and the other one to the foreground (glottis). The initialization carried out is based on the magnitude obtained using the Gradient Vector Flow field, ensuring an automatic process for the selection of the initial contour. The performance of the algorithm is tested using the Pratt coefficient and compared against a manual segmentation. The results obtained suggest that this method provided results comparable with other techniques such as the proposed in (Osma-Ruiz et al., 2008).
International
Si
Congress
BIOSIGNALS 2013
960
Place
Portugal
Reviewers
Si
ISBN/ISSN
978-989-8565-36-5
Start Date
11/02/2013
End Date
14/02/2013
From page
318
To page
322
Proceedings of BIOSIGNALS 2013
Participants
  • Autor: Gustavo Xavier Andrade Miranda (UPM)
  • Autor: Nicolas Saenz Lechon (UPM)
  • Autor: Victor Jose Osma Ruiz (UPM)
  • Autor: Juan Ignacio Godino Llorente (UPM)
Research Group, Departaments and Institutes related
  • Creador: Departamento: Ingeniería de Circuitos y Sistemas
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