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Tailoring biomechanical model meshes for aero-acoustic simulations
KTH, School of Computer Science and Communication (CSC), Computational Biology, CB.
KTH, School of Computer Science and Communication (CSC), Computational Biology, CB.ORCID iD: 0000-0002-2792-1622
2015 (English)In: Computer Methods in Biomechanics and Biomedical Engineering: Imaging & Visualization, ISSN 2168-1171Article in journal (Refereed) Published
Abstract [en]

To simulate the airflow and acoustic wave propagation associated with voice production, a closed surface mesh representing the vocal tract is needed. Biomechanically, the vocal tract is composed of surfaces from several different anatomical structures. We present a method for assembling a dynamic vocal tract mesh by trimming and stitching surface meshes tracking biomechanical models of relevant structures. Two algorithms, one for trimming and one for stitching, are used to first isolate surface mesh patches that are in contact with the airway and then merge them into a closed surface. The algorithms rely on manually selected boundaries and are able to cover gaps between mesh patches. Test cases are used to illustrate how the algorithms behave in various situations. The algorithms are implemented in the toolkit ArtiSynth where many relevant biomechanical models are already available.

Place, publisher, year, edition, pages
Taylor & Francis Group, 2015.
Keyword [en]
Mesh, voice, trimming, stitching, vocal tract
National Category
Other Computer and Information Science
Research subject
Computer Science
URN: urn:nbn:se:kth:diva-170659DOI: 10.1080/21681163.2015.1055516OAI: diva2:839501
EU, FP7, Seventh Framework Programme, 308874

QC 20150714

Available from: 2015-07-02 Created: 2015-07-02 Last updated: 2016-07-14Bibliographically approved

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