Predicting tongue shapes from a few landmark locations

  • Qin C
  • Carreira-Perpiñán M
  • Richmond K
 et al. 
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Abstract

We present a method for predicting the midsagittal tongue contour from the locations of a few landmarks (metal pellets) on the tongue surface, as used in articulatory databases such as MOCHA and the Wisconsin XRDB. Our method learns a mapping using ground-truth tongue contours derived from ultrasound data and drastically improves over spline interpolation. We also determine the optimal locations of the landmarks, and the number of landmarks required to achieve a desired prediction error: 3-4 landmarks are enough to achieve 0.3-0.2 mm error per point on the tongue.

Author-supplied keywords

  • Articulatory database
  • Midsagittal tongue contour
  • Tongue tracking
  • Ultrasound

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  • SCOPUS: 2-s2.0-84867197106
  • ISSN: 19909772
  • SGR: 84867197106
  • PUI: 360001806

Authors

  • Chao Qin

  • Miguel Á Carreira-Perpiñán

  • Korin Richmond

  • Alan Wrench

  • Steve Renals

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