Kinematic skeleton extraction from 3D articulated models

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We propose a method to extract a kinematic skeleton from an articulated 3D model. Unlike the curve skeleton which concentrates on the abstract structure of given model, we aim to obtain the skeleton with accurate joint positions, which can be directly used for character rigging and animation. Restricting our focus on the articulated body, we construct its skeleton in a bottom-up manner starting from a set of automatically obtained feature points. Our method is a hybrid approach combining the advantages of topology-based and geometry-based methods using the Morse theory and the shape descriptor. It does not require manually-chosen feature points or markers, and is independent of both postures and the number of branches of the given model. Experiments show that our method can efficiently extract kinematic skeletons of various kinds of articulated bodies, and also that the results can be directly applied to the character rigging.
Publisher
ELSEVIER SCI LTD
Issue Date
2014-01
Language
English
Article Type
Article
Keywords

MESH; SEGMENTATION; DECOMPOSITION; SURFACES

Citation

COMPUTER-AIDED DESIGN, v.46, pp.221 - 226

ISSN
0010-4485
DOI
10.1016/j.cad.2013.08.036
URI
http://hdl.handle.net/10203/201181
Appears in Collection
CS-Journal Papers(저널논문)
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