Bulging-free dual quaternion skinning

Young Beom Kim; Jung Hyun Han

doi:10.1002/cav.1604

Bulging-free dual quaternion skinning

Young Beom Kim, Jung Hyun Han

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

The linear blend skinning has been the most popular skeletal animation algorithm and also notorious for the collapsing-joint and candy-wrapper artifacts. The dual quaternion skinning (DQS) successfully resolves the problems, but it reveals its own artifacts, which we name bulging joint and distorted normal. We propose to post-process the DQS algorithm; the bulging-joint artifact can be removed by correcting the vertex positions, and the distorted-normal artifact can be removed by correcting the vertex normals. The proposed method is simple yet quite effective. The experimental results show that the skinning animation quality is significantly improved.

Original language	English
Pages (from-to)	321-329
Number of pages	9
Journal	Computer Animation and Virtual Worlds
Volume	25
Issue number	3-4
DOIs	https://doi.org/10.1002/cav.1604
Publication status	Published - 2014

Keywords

Dual quaternion skinning
Linear blend skinning
Skinning animation

ASJC Scopus subject areas

Software
Computer Graphics and Computer-Aided Design

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10.1002/cav.1604

Cite this

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AB - The linear blend skinning has been the most popular skeletal animation algorithm and also notorious for the collapsing-joint and candy-wrapper artifacts. The dual quaternion skinning (DQS) successfully resolves the problems, but it reveals its own artifacts, which we name bulging joint and distorted normal. We propose to post-process the DQS algorithm; the bulging-joint artifact can be removed by correcting the vertex positions, and the distorted-normal artifact can be removed by correcting the vertex normals. The proposed method is simple yet quite effective. The experimental results show that the skinning animation quality is significantly improved.

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KW - Skinning animation

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Bulging-free dual quaternion skinning

Abstract

Keywords

ASJC Scopus subject areas

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