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    Investigating the Differences Between European Portuguese Sounds: An Approach Using Polygonal Mesh Comparison

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    Date
    2021
    Author
    Martins, Paula
    Silva, Samuel
    Oliveira, Catarina
    Ferreira, Carlos
    Silva, Augusto
    Teixeira, António
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    Abstract
    With the main purpose of studying the articulatory configuration of the European Portuguese (EP) sounds and to evaluate coarticulatory effects, a large 3D MRI database from several speakers and contexts have been acquired. Segmentation, visualization and interpretation of all the available data, essential to a detailed characterization of these sounds, are complex and time-consuming tasks. To perform the segmentation, a semi-automatic method was used. Meshes of the tongue were created from the segmented volumes and a polygonal mesh comparison tool (PolyMeCo) was used to compare: different sounds, the same sound produced in different contexts and syllabic positions, and productions from different speakers, providing a qualitative measure of these differences. To the best of our knowledge this is the first study in the literature using such an approach to analyze and compare tongue shape. Furthermore, these first results are very promising allowing a proper analysis and depiction of the main differences between EP sounds and further insight into their production.
    BibTeX
    @inproceedings {10.2312:pt.20111152,
    booktitle = {V Ibero-American Symposium in Computer Graphics},
    editor = {Silva, F. and Gutierrez, D. and Rodríguez, J. and Figueiredo, M.},
    title = {{Investigating the Differences Between European Portuguese Sounds: An Approach Using Polygonal Mesh Comparison}},
    author = {Martins, Paula and Silva, Samuel and Oliveira, Catarina and Ferreira, Carlos and Silva, Augusto and Teixeira, António},
    year = {2021},
    publisher = {The Eurographics Association},
    ISBN = {978-3-03868-152-6},
    DOI = {10.2312/pt.20111152}
    }
    URI
    https://doi.org/10.2312/pt.20111152
    https://diglib.eg.org:443/handle/10.2312/pt20111152
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    Eurographics Association copyright © 2013 - 2023 
    Send Feedback | Contact - Imprint | Data Privacy Policy | Disable Google Analytics
    Theme by @mire NV
    System hosted at  Graz University of Technology.
    TUGFhA