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Predicting Tongue Shapes from a Few Landmark Locations

In Proc. Interspeech, pages 2306-2309, Brisbane, Australia, September 2008

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IS080929.PDF (868.1Kb)
Date
2008
Author
Qin, C.
Carreira-Perpinan, Miguel A
Richmond, Korin
Wrench, Alan
Renals, Steve
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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.
URI
http://hdl.handle.net/1842/3819
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