基于形状匹配的卡通运动捕捉

Cartoon Motion Capture by Shape Matching

提出一种对传统的卡通动画进行运动捕捉的方法 不同于以前基于骨架模型或者关键形状表示的方法 ,用整体仿射运动和局部非仿射变形的组合来表示卡通人物的运动 ,用卡通人物的轮廓表示它的形状 ;然后直接对相邻的关键帧进行形状匹配 ,将恢复的运动参数映射到一个目标人物上 ,使其具有与原来人物相同的运动方式 文中不使用先验模型 ,通过形状匹配来获取和映射卡通人物的运动 。

A novel approach for motion capture from traditionally hand drawn cartoon animations is presented. Unlike previous methods based on skeletal model or key-shape representation, the motion of cartoon character is represented by global affine transformation and local non-affine deformation using thin-plate splines (TPS). The shape of cartoon character is represented by its contour. We directly match shapes between adjacent cartoon frames (or key frames), and retarget recovered motion to a new character, which will move like the original one. The novelty of our approach lies in the ability to capture and retarget cartoon motion by shape matching without prior model. Results are presented to show its ability.