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Activations musculaires et mouvements linguaux : modélisation en parole naturelle et pathologique

Stéphanie Buchaillard 1, 2
1 TIMC-GMCAO [?-2015] - Gestes Medico-chirurgicaux Assistés par Ordinateur [?-2015]
TIMC [2011-2015] - Techniques de l'Ingénierie Médicale et de la Complexité - Informatique, Mathématiques et Applications, Grenoble - UMR 5525 [2011-2015]
Abstract : The purpose of the work presented in this manuscript is the development, in the long run, of some interactive software for tongue surgery, based on a three-dimensional biomechanical model of the tongue, allowing the evaluation of the consequences of some surgery on tongue mobility and supporting the planning and the per-operational guidance of the surgical gesture. The studies led to date aim at studying the feasibility of such a tool.
The first part of this thesis is devoted to a thorough description of the model used. After the presentation of the vocal tract anatomy and of the clinical context, the model geometry is described with precision (internal structure of the tongue model and representation of the bony and soft structures of the vocal tract). The assumptions carried out for biomechanical modelling are introduced as well as the motor control scheme based on the lambda model of the equilibrium-point hypothesis. The extraction of the vocal tract area function is then presented with the model of speech synthesis.
The second part is centred on the results obtained for natural and pathological speech. Our simulations showed the ability of our model to generate the oral vowels of French, with acoustic characteristics close to the values generally observed and satisfactory tongue shapes. Similar simulations are also presented for two cases of tongue surgery: a hemiglossectomy and a widened mouth floor resection.
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https://tel.archives-ouvertes.fr/tel-00201486
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Submitted on : Tuesday, June 24, 2008 - 10:00:51 AM
Last modification on : Wednesday, October 7, 2020 - 11:40:16 AM
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  • HAL Id : tel-00201486, version 4

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Stéphanie Buchaillard. Activations musculaires et mouvements linguaux : modélisation en parole naturelle et pathologique. Sciences du Vivant [q-bio]. Université Joseph-Fourier - Grenoble I, 2007. Français. ⟨tel-00201486v4⟩

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