5th International Conference on Spoken Language Processing

Sydney, Australia
November 30 - December 4, 1998

A Three-Dimensional Linear Articulatory Model Based on MRI Data

Pierre Badin (1), Gérard Bailly (1), Monica Raybaudi (2), Christoph Segebarth (2)

(1) Institut de la Communication Parlee, UPRESA CNRS 5009, INPG - Univ. Stendhal, Grenoble, France (2) Unite INSERM U438, Grenoble, France

Based on a set of 3D vocal tract images obtained by MRI, a 3D linear articulatory model has been built using guided Principal Component Analysis. It constitutes an extension to the lateral dimension of the mid-sagittal model previously developed from a radiofilm recorded on the same subject. The parameters of the 2D model have been found to be good predictors of the 3D shapes, for most configurations. A first evaluation of the model in terms of area functions and formants is presented.

Full Paper

Bibliographic reference.  Badin, Pierre / Bailly, Gérard / Raybaudi, Monica / Segebarth, Christoph (1998): "A three-dimensional linear articulatory model based on MRI data", In ICSLP-1998, paper 0014.