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New Technique:Sketch-based rotation editing

New Technique: Sketch-based rotation editing
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摘要 We present a sketch-based rotation editing mations. Given a set of keyframe orientations of a rigid system for enriching rotational motion in keyframe ani- 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. 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.
作者 Yue XIE Wei-wei XU Yi-zhou YU Yan-lin WENG
机构地区 School of Computer Science and Technology Internet Graphics Group Department of Computer Science
出处 《Journal of Zhejiang University-Science C(Computers and Electronics)》 SCIE EI 2011年第11期867-872,共6页 浙江大学学报C辑（计算机与电子（英文版）
基金 supported by the National Natural Science Foundation of China (No. 61003145) the Fundamental Research Fundsfor the Central Universities, China (No. 2009QNA5018)
关键词 QUATERNIONS Keyframe interpolation Animation editing
分类号 TP391.4 [自动化与计算机技术—计算机应用技术]
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参考文献15

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  • 2Bott, J., LaViola, J., 2010. A Pen-Based Tool for Visual- izing Vector Mathematics. Eurographics Workshop on Sketch-Based Interfaces and Modeling, p.103-110.
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Journal of Zhejiang University-Science C(Computers and Electronics)
2011年 第11期

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