基于形态变换的非刚体运动及变形的新方法及其应用  

A Method For Nonrigid Body Motion and Metamorphosis Based on Morpho translation and Its Applications

作　　者：刘文予[1] 李华[1] 张江山 朱光喜[1] 

机构地区：[1]华中理工大学电子与信息工程系图象信息处理与智能控制国家教委开放研究实验室,武汉430074

出　　处：《高技术通讯》2000年第12期48-51,共4页Chinese High Technology Letters

基　　金：国家自然科学基金资助项目!(编号 :6 99730 18);湖北省自然科学基金资助项目!(编号 :99J0 0 9)

摘　　要：提出非刚体运动及变性的新方法 ,与传统的线性方法相比 ,解决了任意非同拓扑结构 (包括有孔及凹多边形 )的内插问题 ,理论上证明此种方法是一种全局优化的内插方法并证明此方法的正确性。实验表明此方法效果自然 ,质量好、速度快、自动化程度高 ,为字体合成、计算机动画、模型基编码。A novel method for nonrigid body motion and metamorphosis is proposed based on morpho translation. Nonrigid body motion can be divided to nonrigid body metamorphosis and rigid body rotation. By decomposing two concave objects into sets of individual convex sub objects respectively and then constructing the mapping between two subsets, the metamorphosis of two concave objects can be described by the coalition of all Minkowski additions of convex subsets. The principle of morph translation is proved theoretically. This method can solve the metamorphosis problems of two non homotopy objects (including concave object and holey object) and get the natural, high quality metamorphosis sequence with simple computation, it also can be used to describe nonrigid body motion, font composition, 3D arbitrary object metamorphosis, interpolation between keyframes in 2D computer animation, model oriented image coding, virtual man machine communication (conversation) , etc.

关 键 词：图形学 形态变换 广义形态内插 凸部分 全局优化 非刚体运动 非同拓扑结构 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]