Differential Blending for Expressive Sketch-Based Posing

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dc.contributor.authorÖztireli, A. Cengizen_US
dc.contributor.authorBaran, Ilyaen_US
dc.contributor.authorPopa, Tiberiuen_US
dc.contributor.authorDalstein, Borisen_US
dc.contributor.authorSumner, Robert W.en_US
dc.contributor.authorGross, Markusen_US
dc.contributor.editorTheodore Kim and Robert Sumneren_US
dc.date.accessioned2016-02-18T12:01:39Z
dc.date.available2016-02-18T12:01:39Z
dc.date.issued2013en_US
dc.description.abstractGenerating highly expressive and caricatured poses can be difficult in 3D computer animation because artists must interact with characters indirectly through complex character rigs. Furthermore, since caricatured poses often involve large bends and twists, artifacts arise with traditional skinning algorithms that are not designed to blend large, disparate rotations and cannot represent extremely large rotations. To overcome these problems, we introduce a differential blending algorithm that can successfully encode and blend large transformations, overcoming the inherent limitation of previous skeletal representations. Based on this blending method, we illustrate a sketch-based interface that supports curved bones and implements the line-of-action concept from hand-drawn animation to create expressive poses in 3D animation. By interpolating stored differential transformations across temporal keyframes, our system also generates caricatured animation. We present a detailed technical analysis of our differential blending algorithm and show several posing and animation results created using our system to demonstrate the utility of our method in practice.en_US
dc.description.sectionheadersThis Whole Mesh is Riggeden_US
dc.description.seriesinformationEurographics/ ACM SIGGRAPH Symposium on Computer Animationen_US
dc.identifier.doi10.1145/2485895.2485916en_US
dc.identifier.isbn978-1-4503-2132-7en_US
dc.identifier.issn1727-5288en_US
dc.identifier.pages155-164en_US
dc.identifier.urihttps://doi.org/10.1145/2485895.2485916en_US
dc.publisherACM SIGGRAPH / Eurographics Associationen_US
dc.subjectCR Categoriesen_US
dc.subjectI.3.7 [Computer Graphics]en_US
dc.subjectThree Dimensional Graphics and Realismen_US
dc.subjectAnimationen_US
dc.subjectKeywordsen_US
dc.subjectSkeletal animationen_US
dc.subjectposingen_US
dc.subjectskinningen_US
dc.subjectdeformationen_US
dc.titleDifferential Blending for Expressive Sketch-Based Posingen_US
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SCA 13: Eurographics/SIGGRAPH Symposium on Computer Animation