基于可变形运动模型和运动片元的多角色运动合成

Multi-character Animation Based on Deformable Motion Model and Motion Patches

为了实现多角色运动合成,提出将多角色可变形运动模型与运动片元相结合的方法.在运动片元构造阶段,使用多角色可变形运动模型来为片元库增加语义相同而细节不同的多角色交互性运动片元;在运动片元拼接阶段,使用随机抽样算法和确定性搜索算法相结合的策略来拼接运动片元;在多角色运动合成阶段,使用自顶向下策略匹配存在环境约束的情况,并使用大片元优先策略匹配片元形状不规则的情况.实验结果表明,该方法能实现运动片元间的平滑过渡,得到在时间上连续、空间上不重叠的无缝拼接图.

This paper proposes to combine multi-character deformable motion model and motion patches to synthesize multi-character animations. In the stage of constructing motion patches, multi-character deformable motion model is adopted to construct a patch library which consist of patches with same semantic meanings hut different motion details. In the stage of tiling motion patches, a strategy combining the random sample consensus algorithm and the deterministic search algorithm is used to tile the motion patches. In the stage of multi-character motion synthesis, the top-down strategy is used to match the case with the environmental constraints, and the large patches with higher priority strategy is used to match the case that the shape of patches is irregular. The experimental results show that the proposed method can achieve a smooth transition between motion patches and a seamless splice diagram, which results in animations continuous in time and no-overlapping in space.