• Robust and Accurate Skeletal Rigging from Mesh Sequences (SIGGRAPH 2014)

    7,465 views 4 years ago
    This demo video is for ACM SIGGRAPH 2014 paper "Robust and Accurate Skeletal Rigging from Mesh Sequences" (Binh H. Le and Zhigang Deng).

    We introduce an example-based rigging approach to automatically
    generate linear blend skinning models with skeletal structure.
    Based on a set of example poses, our approach can output its skeleton, joint positions, linear blend skinning weights, and corresponding bone transformations. The output can be directly used to set up skeleton-based animation in various 3D modeling and animation software as well as game engines. Specifically, we formulate the solving of a linear blend skinning model with a skeleton
    as an optimization with joint constraints and weight smoothness
    regularization, and solve it using an iterative rigging algorithm that
    (i) alternatively updates skinning weights, joint locations, and bone
    transformations, and (ii) automatically prunes redundant bones that
    can be generated by an over-estimated bone initialization. Due to
    the automatic redundant bone pruning, our approach is more robust
    than existing example-based rigging approaches. Furthermore, in
    terms of rigging accuracy, even with a single set of parameters, our
    approach can soundly outperform state of the art methods on various
    types of experimental datasets including humans, quadrupled
    animals, and highly deformable models. Show less
    Read more
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