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Bézier modelling and high accuracy curve fitting to capture hard palate variation.

MPS-Authors
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Janssen,  Rick
Language and Genetics Department, MPI for Psycholinguistics, Max Planck Society;
International Max Planck Research School for Language Sciences, MPI for Psycholinguistics, Max Planck Society;

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Moisik,  Scott R.
Language and Genetics Department, MPI for Psycholinguistics, Max Planck Society;

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Dediu,  Dan
Language and Genetics Department, MPI for Psycholinguistics, Max Planck Society;

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Citation

Janssen, R., Moisik, S. R., & Dediu, D. (2015). Bézier modelling and high accuracy curve fitting to capture hard palate variation. Talk presented at the 18th International Congress of Phonetic Sciences (ICPhS 2015). Glasgow, UK. 2015-08-10 - 2015-08-14.


Cite as: https://hdl.handle.net/11858/00-001M-0000-002B-AACF-A
Abstract
The human hard palate shows between-subject variation
that is known to influence articulatory strategies.
In order to link such variation to human speech, we
are conducting a cross-sectional MRI study on multiple
populations. A model based on Bezier curves
using only three parameters was fitted to hard palate
MRI tracings using evolutionary computation. The
fits produced consistently yield high accuracies. For
future research, this new method may be used to classify
our MRI data on ethnic origins using e.g., cluster
analyses. Furthermore, we may integrate our model
into three-dimensional representations of the vocal
tract in order to investigate its effect on acoustics and
cultural transmission.