Publikation
Tongue mesh extraction from 3D MRI data of the human vocal tract
Alexander Hewer; Stefanie Wuhrer; Ingmar Steiner; Korin Richmond
In: Michael Breuß; Alfred M. Bruckstein; Petros Maragos; Stefanie Wuhrer (Hrsg.). Perspectives in Shape Analysis. Chapter 16, Pages 345-365, Mathematics and Visualization, ISBN 978-3-319-24724-3, Springer, 10/2016.
Zusammenfassung
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.