A low-cost stereovision based system for acquisition of visible articulatory data

Brigitte Wrobel-Dautcourt 1 Marie-Odile Berger 1 Blaise Potard 2 Yves Laprie 2 Slim Ouni 2
1 MAGRIT - Visual Augmentation of Complex Environments
INRIA Lorraine, LORIA - Laboratoire Lorrain de Recherche en Informatique et ses Applications
2 PAROLE - Analysis, perception and recognition of speech
INRIA Lorraine, LORIA - Laboratoire Lorrain de Recherche en Informatique et ses Applications
Abstract : In this paper, we present the 3D acquisition infrastructure we developed for building a talking face and studying some aspects of visual speech. A short-term aim is to study coarticulation for the French language and to develop a model which respects a real talker articulation. One key factor is to be able to acquire a large amount of 3D data with a low-cost system more flexible than existing motion capture systems (using infrared cameras and glued markers). Our system only uses two standard cameras, a PC and painted markers that do not change speech articulation and provides a sufficiently fast acquisition rate to enable an efficient temporal tracking of 3D points. We present here our stereovision data capture system and how these data can be used in acoustic-to-articulatory inversion
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Submitted on : Thursday, October 13, 2005 - 10:13:43 AM
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Brigitte Wrobel-Dautcourt, Marie-Odile Berger, Blaise Potard, Yves Laprie, Slim Ouni. A low-cost stereovision based system for acquisition of visible articulatory data. 5th Conference on Auditory-Visual Speech Processing - AVSP'2005, Jul 2005, Vancouver Island (BC), Canada. ⟨inria-00000432⟩

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