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    Sketch Express: Facial Expressions Made Easy

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    087-094.pdf (1.283Mb)
    Date
    2011
    Author
    Miranda, José Carlos
    Alvarez, Xenxo
    Orvalho, João
    Gutierrez, Diego
    Sousa, A. Augusto
    Orvalho, Verónica
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    Abstract
    Finding an effective control interface to manipulate complex eometric objects has traditionally relied on experienced users to place the animation controls. This process, whether for key framed or for motion captured animation, takes a lot of time and effort. We introduce a novel sketching interface control system inspired in theway artists draw, in which a stroke defines the shape of an object and reflects the user s intention. We also introduce the canvas, a 2D drawing region where the users can make their strokes, which determines the domain of interaction with the object. We show that the combination of strokes and canvases provides a new way to manipulate the shape of an implicit volume in space. And most importantly, it is independent from the 3D model rig. The strokes can be easily stored and reused in other characters, allowing retargeting of poses. Our interactive approach is illustrated using facial models of different styles. As a result, we allow rapid manipulation of 3D faceson the fly in a very intuitive and interactive way. Our informal study showed that first time users typically master the system within seconds, creating appealing 3D poses and animations in just a few minutes.
    BibTeX
    @inproceedings {10.2312:SBM:SBM11:087-094,
    booktitle = {Eurographics Workshop on Sketch-Based Interfaces and Modeling},
    editor = {Tracy Hammond and Andy Nealen},
    title = {{Sketch Express: Facial Expressions Made Easy}},
    author = {Miranda, José Carlos and Alvarez, Xenxo and Orvalho, João and Gutierrez, Diego and Sousa, A. Augusto and Orvalho, Verónica},
    year = {2011},
    publisher = {The Eurographics Association},
    ISSN = {1812-3503},
    ISBN = {978-1-4503-0906-6},
    DOI = {10.2312/SBM/SBM11/087-094}
    }
    URI
    http://dx.doi.org/10.2312/SBM/SBM11/087-094
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    Eurographics Association copyright © 2013 - 2022 
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    Theme by @mire NV
    System hosted at  Graz University of Technology.
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