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Tongue Mesh Extraction from 3D MRI Data of the Human Vocal Tract

  • Alexander HewerEmail author
  • Stefanie Wuhrer
  • Ingmar Steiner
  • Korin Richmond
Conference paper
Part of the Mathematics and Visualization book series (MATHVISUAL)

Abstract

In speech science, analyzing the shape of the tongue during human speech production is of great importance. In this field, magnetic resonance imaging (MRI) is currently regarded as the preferred modality for acquiring dense 3D information about the human vocal tract . However, the desired shape information is not directly available from the acquired MRI data. In this chapter, we present a minimally supervised framework for extracting the tongue shape from a 3D MRI scan. It combines an image segmentation approach with a template fitting technique and produces a polygon mesh representation of the identified tongue shape. In our evaluation, we focus on two aspects: First, we investigate whether the approach can be regarded as independent of changes in tongue shape caused by different speakers and phones. Moreover, we check whether an average user who is not necessarily an anatomical expert may obtain acceptable results. In both cases, our framework shows promising results.

Keywords

Point Cloud Vocal Tract Magnetic Resonance Imaging Data Hard Palate Polygon Mesh 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

This study uses data from work supported by EPSRC Healthcare Partnerships Grant number EP/I027696/1 (“Ultrax”).

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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  • Alexander Hewer
    • 1
    • 2
    • 3
    Email author
  • Stefanie Wuhrer
    • 4
  • Ingmar Steiner
    • 2
    • 3
  • Korin Richmond
    • 5
  1. 1.Saarbrücken Graduate School of Computer ScienceSaarbrückenGermany
  2. 2.DFKI Language Technology LabSaarbrückenGermany
  3. 3.Cluster of Excellence Multimodal Computing and InteractionSaarland UniversitySaarbrückenGermany
  4. 4.INRIA Grenoble Rhône-AlpesSaint IsmierFrance
  5. 5.Centre for Speech Technology ResearchUniversity of EdinburghEdinburghUK

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