融合手绘风格的卡通角色动画生成方法  

Cartoon Character Animation from Multi-view Hand-Drawings

作　　者：李响[1] 徐筠[1] 耿卫东[1] 

机构地区：[1]浙江大学CAD&CG国家重点实验室,杭州310027

出　　处：《计算机辅助设计与图形学学报》2011年第10期1690-1699,共10页Journal of Computer-Aided Design & Computer Graphics

基　　金：国家自然科学基金(60633070;60773183);国家"八六三"高技术研究发展计划(2007AA01Z311);国家科技支撑计划(2007BAH11B02;2007BAH11B03);教育部新世纪人才计划(NCET-07-0743);长江学者和创新团队计划(IRT0652)

摘　　要：手绘风格的卡通动画具有灵活、自然、表现力强等特点.为了快速地创作体现手绘风格的卡通角色动画,提出一种基于多视点手绘图的动画生成方法.首先利用手绘图构建角色的三维网格和骨架子空间模型;然后结合姿态重建和微分域网格变形算法,创建一组与多视点手绘图相匹配的视点相关模型,以表达手绘风格;最后通过运动标注和启发式泛化算法将手绘风格融入输入的运动序列,使生成的动画既保留运动序列的原始特征,又体现手绘图的笔画风格.实验结果表明,该方法能够有效地生成体现手绘风格的卡通角色动画.Hand drawn animation is flexible, natural and remarkably expressive. For rapidly creating cartoon character animation with hand-drawn style, we present a novel animation generation approach based on multi-view drawings. The input drawings are first employed to construct a 3D mesh and its skeleton subspace. Then a set of view-dependent models, which closely match the multi-view drawings, are created by combining pose reconstruction with differential domain deformation, representing the hand-drawn style. By annotating and heuristic generalization, our method retargets the hand-drawn style onto various input motion data, making the result animation possess the stroke features of the drawings while preserve the original content of the motion data. The experiment results clearly demonstrate the superiority of our method in generating cartoon character animation with hand- drawn style.

关 键 词：卡通动画 角色动画 草图用户界面 视点相关几何 非真实感绘制 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]