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Front. Inform. Technol. Electron. Eng.  2011, Vol. 12 Issue (11): 867-872    DOI: 10.1631/jzus.C1000373
    
Sketch-based rotation editing
Yue Xie1, Wei-wei Xu2, Yi-zhou Yu3, Yan-lin Weng*,1
1 School of Computer Science and Technology, Zhejiang University, Hangzhou 310027, China 2 Internet Graphics Group, Microsoft Research Asia, Beijing 100190, China 3 Department of Computer Science, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
Sketch-based rotation editing
Yue Xie1, Wei-wei Xu2, Yi-zhou Yu3, Yan-lin Weng*,1
1 School of Computer Science and Technology, Zhejiang University, Hangzhou 310027, China 2 Internet Graphics Group, Microsoft Research Asia, Beijing 100190, China 3 Department of Computer Science, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
 全文: PDF(567 KB)  
摘要： We present a sketch-based rotation editing system for enriching rotational motion in keyframe animations. Given a set of keyframe orientations of a rigid object, the user first edits its angular velocity trajectory by sketching curves, and then the system computes the altered rotational motion by solving a variational curve fitting problem. The solved rotational motion not only satisfies the orientation constraints at the keyframes, but also fits well the user-specified angular velocity trajectory. Our system is simple and easy to use. We demonstrate its usefulness by adding interesting and realistic rotational details to several keyframe animations.
关键词： Quaternions;  Keyframe interpolation;  Animation editing    
Abstract: We present a sketch-based rotation editing system for enriching rotational motion in keyframe animations. Given a set of keyframe orientations of a rigid object, the user first edits its angular velocity trajectory by sketching curves, and then the system computes the altered rotational motion by solving a variational curve fitting problem. The solved rotational motion not only satisfies the orientation constraints at the keyframes, but also fits well the user-specified angular velocity trajectory. Our system is simple and easy to use. We demonstrate its usefulness by adding interesting and realistic rotational details to several keyframe animations.
Key words: Quaternions    Keyframe interpolation    Animation editing
收稿日期: 2010-10-24 出版日期: 2011-11-04
CLC:  TP391.4  
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引用本文:

Yue Xie, Wei-wei Xu, Yi-zhou Yu, Yan-lin Weng. Sketch-based rotation editing. Front. Inform. Technol. Electron. Eng., 2011, 12(11): 867-872.

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http://www.zjujournals.com/xueshu/fitee/CN/10.1631/jzus.C1000373    或    http://www.zjujournals.com/xueshu/fitee/CN/Y2011/V12/I11/867

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