Sparse Rig Parameter Optimization for Character Animation

dc.contributor.authorSong, Jaewonen_US
dc.contributor.authorRibera, Roger Blanco ien_US
dc.contributor.authorCho, Kyungminen_US
dc.contributor.authorYou, Mien_US
dc.contributor.authorLewis, J. P.en_US
dc.contributor.authorChoi, Byungkuken_US
dc.contributor.authorNoh, Junyongen_US
dc.contributor.editorLoic Barthe and Bedrich Benesen_US
dc.date.accessioned2017-04-22T16:25:44Z
dc.date.available2017-04-22T16:25:44Z
dc.date.issued2017
dc.description.abstractWe propose a novel motion retargeting method that efficiently estimates artist-friendly rig space parameters. Inspired by the workflow typically observed in keyframe animation, our approach transfers a source motion into a production friendly character rig by optimizing the rig space parameters while balancing the considerations of fidelity to the source motion and the ease of subsequent editing. We propose the use of an intermediate object to transfer both the skeletal motion and the mesh deformation. The target rig-space parameters are then optimized to minimize the error between the motion of an intermediate object and the target character. The optimization uses a set of artist defined weights to modulate the effect of the different rig space parameters over time. Sparsity inducing regularizers and keyframe extraction streamline any additional editing processes. The results obtained with different types of character rigs demonstrate the versatility of our method and its effectiveness in simplifying any necessary manual editing within the production pipeline.en_US
dc.description.number2
dc.description.sectionheadersRigging, Tearing, and Faces
dc.description.seriesinformationComputer Graphics Forum
dc.description.volume36
dc.identifier.doi10.1111/cgf.13109
dc.identifier.issn1467-8659
dc.identifier.pages085-094
dc.identifier.urihttps://doi.org/10.1111/cgf.13109
dc.identifier.urihttps://diglib.eg.org:443/handle/10.1111/cgf13109
dc.publisherThe Eurographics Association and John Wiley & Sons Ltd.en_US
dc.subjectI.3.7 [Computer Graphics]
dc.subjectThree Dimensional Graphics as Realism
dc.subjectAnimation
dc.titleSparse Rig Parameter Optimization for Character Animationen_US
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