A mesh-based automatic in-betweening algorithm in computer-assisted animation

被引:0
作者
Chen C. [1 ]
Zheng Y. [1 ]
Sarem M. [2 ]
机构
[1] College of Computer Science and Technology, Huazhong University of Science and Technology
[2] School of Software Engineering, Huazhong University of Science and Technology
来源
Front. Comput. Sci. China | 2007年 / 2卷 / 241-245期
关键词
Automatic; Computer animation; In-betweening; Key frame; Mesh;
D O I
10.1007/s11704-007-0025-0
中图分类号
学科分类号
摘要
The automatic in-betweening technology is one of the most important technologies in computer-assisted animation. The preprocessing of inconsistency of the topological structure between the start and the end key frames is time-consuming in the traditional in-betweening algorithm. Therefore, in order to guarantee the consistency of the topology structure between the start and the end key frames, we present in this paper a new mesh-based automatic in-betweening algorithm for the key frame animation. By meshing a three-dimensional object, all the infinite and disorderly points on the surface of an object can be converted into finite and ordinal points according to some principles of each layer and between layers, and then a series of in-betweens can be automatically generated in terms of an interpolation function. The algorithm in this paper presents a solution to the corresponding principles of the vertices on each layer and between layers after meshing the start and the end key frames. The experimental results demonstrate that the animation generated based on this method is smooth, natural, and fluent. In application, our algorithm can improve the efficiency of animation production as well as greatly reducing the cost. © Higher Education Press 2007.
引用
收藏
页码:241 / 245
页数:4
相关论文
共 7 条
[1]  
Kort A., Computer aided in-betweening, Proceedings of the 2nd International Symposium on Non-photorealistic Animation and Rendering, pp. 125-132, (2002)
[2]  
Jin X.G., Bao H.J., Peng Q.S., A survey of computer animation, Journal of Software, 8, 4, pp. 241-251, (1997)
[3]  
Di-Fiore F., Schaeken P., Elens K., Et al., Automatic in-betweening in computer assisted animation by exploiting 2.5D modeling techniques, Proceeding of Computer Animation, pp. 192-200, (2001)
[4]  
Di-Foice F., Van-Reeth F., Employing approximate 3D models to enrich traditional computer assisted animation, Proceedings of Computer Animation, pp. 183-192, (2002)
[5]  
Lake A., Marshall C., Harris M., Et al., Stylized rendering techniques for scalable real-time 3D animation, Proceedings of the 1st International Symposium on Non-photorealistic Animation and Rendering, pp. 13-20, (2000)
[6]  
Martin D., Fekete J.D., Torres J.C., Flattening 3D objects using silhouettes, Proceedings of EUROGRAPH, pp. 239-248, (2002)
[7]  
Durand F., An invitation to discuss computer depiction, Proceedings of the 2nd International Symposium on Non-photorealistic Animation and Rendering, pp. 111-124, (2002)