Artist friendly facial animation retargeting
Artist friendly facial animation retargeting
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DOI：
10.1145/2024156.2024196
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发表时间：
2011-12
期刊：
影响因子：
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通讯作者：
Yeongho Seol;Jaewoo Seo;Paul Hyunjin Kim;J. P. Lewis;Jun-yong Noh
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文献类型：
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作者：
Yeongho Seol;Jaewoo Seo;Paul Hyunjin Kim;J. P. Lewis;Jun-yong Noh
本文提出了一种新颖的面部动画重定向系统，该系统经过精心设计，可以支持动画师的工作流程。对动画师通常首选的使用混合形状模型的关键帧动画过程的观察和分析为我们的研究提供了信息。我们的重定向系统生成一组与动画师生成的类似的混合形状权重。这是通过将混合形状组重新排列为几个连续的重定向组并使用受传统关键帧方法启发的匹配追踪方案来解决的。与此同时，动画师通常花费大量时间来简化由重定向创建的密集权重图。我们的图形简化技术有效地生成可编辑的权重图形，同时保留原始重定向的视觉特征。最后，我们自动创建 GUI 控制器来帮助艺术家非常有效地执行关键帧和编辑。所提出的这组技术大大减少了动画师实现高质量重定向面部动画所需的时间和精力。
This paper presents a novel facial animation retargeting system that is carefully designed to support the animator's workflow. Observation and analysis of the animators' often preferred process of key-frame animation with blendshape models informed our research. Our retargeting system generates a similar set of blendshape weights to those that would have been produced by an animator. This is achieved by rearranging the group of blendshapes into several sequential retargeting groups and solving using a matching pursuit-like scheme inspired by a traditional key-framing approach. Meanwhile, animators typically spend a tremendous amount of time simplifying the dense weight graphs created by the retargeting. Our graph simplification technique effectively produces editable weight graphs while preserving the visual characteristics of the original retargeting. Finally, we automatically create GUI controllers to help artists perform key-framing and editing very efficiently. The set of proposed techniques greatly reduce the time and effort required by animators to achieve high quality retargeted facial animations.