Research

Automatic rigging for animation characters with 3D silhouette


Reference:

Pan, J. J., Yang, X. S., Xie, X., Willis, P. and Zhang, J. J., 2009. Automatic rigging for animation characters with 3D silhouette. Computer Animation and Virtual Worlds, 20 (2-3), pp. 121-131.

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Official URL:

http://dx.doi.org/10.1002/cav.284

Abstract

Animating an articulated 3D character requires the specification of its interior skeleton structure which defines how the skin surface is deformed during animation. Currently this task is to a large extent accomplished manually, which consumes a large amount of animators' time. This paper presents an automatic rigging method making use of a new geometry entity called the 3D silhouette. The first step is to extract a coarse 3D curve skeleton and some skeletal joints of a character. This curve skeleton is then refilled with a perpendicular silhouette. According to the connectivity of the skeletal joints, the hierarchical animation skeleton is finally constructed. By avoiding complicated computation such as voxelization and pruning, this method is simple and efficient, much faster than existing methods. It proves very useful for quick animation production, with applications including games design and prototype graphical systems.

Details

Item Type Articles
CreatorsPan, J. J., Yang, X. S., Xie, X., Willis, P. and Zhang, J. J.
DOI10.1002/cav.284
Uncontrolled Keywordsmedial axis, rigging, 3d silhouette, curve skeleton, animation skeleton
DepartmentsFaculty of Science > Computer Science
Research CentresMedia Technology Research Centre
RefereedYes
StatusPublished
ID Code15310
Additional InformationProceedings paper from the 22nd International Conference on Computer Animation and Social Agents (CASA 2009). Amsterdam, Netherlands, 17-19 June 2009

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