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Optical Flow Glottovibrogram: Synthesizing The Vocal Fold Vibrations for Visualizing and Analyzing the Laryngeal Dynamics
Year:2016
Research Areas
  • Dataprocessing
Information
Abstract
Different playbacks have been proposed to synthesize the dynamical information of the vocal folds. However most of them rely on the delineation of the glottal gap using segmentation techniques which is not a trivial task. In order to avoid this problem, a new playback based on the optical flow computation is proposed, called Optical Flow Glottovibrogram. The reliability of the proposed playback is evaluated by comparing it with the well known glottovibrogram. The results show a great correlation in shape among both representations. Although the new playback is blurred in comparison to the glottovibrogram, it allows to identify the most important instants of time, such as closedstated and maximal opening. The major advantage of the method is that tackles the problem of glottal segmentation and glottal axis detection. It also provides complementary information to the common spatio-temporal representations. However, some limitations need to be addressed in future works such as its tolerance to large tilts and the inward-outward shifts
International
No
Entity
XXXI Simposium Nacional de la Unión Científica Internacional de Radio, URSI 2016
Place
Madrid
Pages
Reference/URL
http://rfcas.eps.uam.es/ursi2016/index.php
Publication type
Ponencia
Participants
  • Autor: Gustavo Xavier Andrade Miranda (UPM)
  • Autor: Nathalie Henrich Bernardoni (Univ. Grenoble Alpes)
  • Autor: Juan Ignacio Godino Llorente (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Informática Aplicada al Procesado de Señal e Imagen
  • Departamento: Teoría de la Señal y Comunicaciones (Provisional)
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)