Automated generation of control skeletons for use in animation

Author： Lawson Wade, Richard E. ParentSource： The Visual Computer (2002) 18:97-110Speaker： Jhen-Yu YangAdvisor：Ku-Yaw Chang

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Outline

•Introduction•Method•Results•Conclusion

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Introduction•Generating a control skeleton

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The skeletal graph for the horse

The 3D model of the horse

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Outline

•Introduction•Method•Results•Conclusion

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Method

•Voxelization ▫Voxelized representation

•Distance map construction▫Euclidean distance

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A 2D Euclidean distance map for an animal-shaped

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Method

•Medial surface extraction

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DMS of a horse

A medial axis in 2D (a and b) and a medialsurface in 3D (c)

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Method•Path tree generation

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Forming path-tree extension

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Method•Smooth the path tree

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Method•Control skeleton construction

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Outline

•Introduction•Method•Results•Conclusion

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Results

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Control skeleton for a human figure

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Results

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Control skeleton for an octopusControl skeleton for a jellyfish

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Outline

•Introduction•Method•Results•Conclusion

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Conclusion

•Produce a reasonably good control skeleton in 1 or 2 min on a low-end PC

•It does not work very well for objects with holes▫doughnut

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The EndThanks

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