Research

Roto++: accelerating professional rotoscoping using shape manifolds


Reference:

Li, W., Viola, F., Starck, J., Brostow, G. J. and Campbell, N., 2016. Roto++: accelerating professional rotoscoping using shape manifolds. ACM Transactions on Graphics, 35 (4), 62.

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    Official URL:

    http://dx.doi.org/10.1145/2897824.2925973

    Abstract

    Rotoscoping (cutting out different characters/objects/layers in raw video footage) is a ubiquitous task in modern post-production and represents a significant investment in person-hours. In this work, we study the particular task of professional rotoscoping for high-end, live action movies and propose a new framework that works with roto-artists to accelerate the workflow and improve their productivity. Working with the existing keyframing paradigm, our first contribution is the development of a shape model that is updated as artists add successive keyframes. This model is used to improve the output of traditional interpolation and tracking techniques, reducing the number of keyframes that need to be specified by the artist. Our second contribution is to use the same shape model to provide a new interactive tool that allows an artist to reduce the time spent editing each keyframe. The more keyframes that are edited, the better the interactive tool becomes, accelerating the process and making the artist more efficient without compromising their control. Finally, we also provide a new, professionally rotoscoped dataset that enables truly representative, real-world evaluation of rotoscoping methods. We used this dataset to perform a number of experiments, including an expert study with professional roto-artists, to show, quantitatively, the advantages of our approach.

    Details

    Item Type Articles
    CreatorsLi, W., Viola, F., Starck, J., Brostow, G. J. and Campbell, N.
    DOI10.1145/2897824.2925973
    DepartmentsFaculty of Science > Computer Science
    Research CentresEPSRC Centre for Doctoral Training in Statistical Mathematics (SAMBa)
    Publisher Statementc114_f114_299_a67_paperfinal_v3.pdf: © ACM, 2016. This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in ACM Transactions on Graphics, 53, 4, 11/4/16 http://doi.acm.org/10.1145/2897824.2925973
    RefereedYes
    StatusPublished
    ID Code50225

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