Keys-to-Sim: Transferring Hand-Crafted Key-framed Animations to Simulated Figures using Wide Band Stochastic Trajectory Optimization

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dc.contributor.authorBorer, Dominiken_US
dc.contributor.authorGuay, Martinen_US
dc.contributor.authorSumner, Robert W.en_US
dc.contributor.editor{Tam, Gary K. L. and Vidal, Francken_US
dc.date.accessioned2018-09-19T15:15:05Z
dc.date.available2018-09-19T15:15:05Z
dc.date.issued2018
dc.description.abstractThe vision of fully simulating characters and their environments has the potential to offer rich interactions between characters and objects in the virtual world. However, this introduces a challenging problem similar to controlling robotic figures: computing the necessary torques to perform a given task. In this paper, we address the problem of transferring hand-crafted kinematic motions to a fully simulated figure, by computing open-loop controls necessary to reproduce the target motion. One key ingredient to successful control is the mechanical feasibility of the target motion. While several methods have been successful at replicating human captured motion, there has not yet been a method capable of handling the case of artist-authored key-framed movements that can violate the laws of physics or go beyond the mechanical limits of the character. Due to the curse of dimensionality, sampling-based optimization methods typically restrict the search to a narrow band which limits exploration of feasible motions—resulting in a failure to reproduce the desired motion when a large deviation is required. In this paper, we solve this problem by combining a window-based breakdown of the controls on the temporal dimension, together with a global wide search strategy that keeps locally sub-optimal samples throughout the optimization.en_US
dc.description.sectionheadersGraphics
dc.description.seriesinformationComputer Graphics and Visual Computing (CGVC)
dc.identifier.doi10.2312/cgvc.20181205
dc.identifier.isbn978-3-03868-071-0
dc.identifier.pages33-41
dc.identifier.urihttps://diglib.eg.org:443/handle/10.2312/cgvc20181205
dc.identifier.urihttps://doi.org/10.2312/cgvc.20181205
dc.publisherThe Eurographics Associationen_US
dc.subjectComputing methodologies
dc.subjectPhysical simulation
dc.subjectOptimization algorithms
dc.titleKeys-to-Sim: Transferring Hand-Crafted Key-framed Animations to Simulated Figures using Wide Band Stochastic Trajectory Optimizationen_US
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