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    Virtual Character Performance From Speech

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    Date
    2013
    Author
    Marsella, Stacy
    Xu, Yuyu
    Lhommet, Margaux
    Feng, Andrew
    Scherer, Stefan
    Shapirok, Ari
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    Abstract
    We demonstrate a method for generating a 3D virtual character performance from the audio signal by inferring the acoustic and semantic properties of the utterance. Through a prosodic analysis of the acoustic signal, we perform an analysis for stress and pitch, relate it to the spoken words and identify the agitation state. Our rule-based system performs a shallow analysis of the utterance text to determine its semantic, pragmatic and rhetorical content. Based on these analyses, the system generates facial expressions and behaviors including head movements, eye saccades, gestures, blinks and gazes. Our technique is able to synthesize the performance and generate novel gesture animations based on coarticulation with other closely scheduled animations. Because our method utilizes semantics in addition to prosody, we are able to generate virtual character performances that are more appropriate than methods that use only prosody. We perform a study that shows that our technique outperforms methods that use prosody alone.
    BibTeX
    @inproceedings {2485895.2485900,
    booktitle = {Eurographics/ ACM SIGGRAPH Symposium on Computer Animation},
    editor = {Theodore Kim and Robert Sumner},
    title = {{Virtual Character Performance From Speech}},
    author = {Marsella, Stacy and Xu, Yuyu and Lhommet, Margaux and Feng, Andrew and Scherer, Stefan and Shapirok, Ari},
    year = {2013},
    publisher = {ACM SIGGRAPH / Eurographics Association},
    ISSN = {1727-5288},
    ISBN = {978-1-4503-2132-7},
    DOI = {10.1145/2485895.2485900}
    }
    URI
    http://dx.doi.org/10.1145/2485895.2485900
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    Eurographics Association copyright © 2013 - 2019 
    Send Feedback | Contact - Imprint | Data Privacy Policy | Disable Google Analytics
    Theme by @mire NV
    System hosted at  Graz University of Technology.
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