Style components
Ari Daniel Shapiro, Yong Cao, Petros Faloutsos · 2006
Figure 1: A sneaky style component is added to a normal walk (left image, left character) to synthesize a sneaky walk (left image, right character). The style component transfer is reversed, applying an upright and casual walking style to a sneaking motion (right image, left character) to produce a walk-like sneak, which appears as a tiptoeing motion (right image, right character). We propose a novel method for interactive editing of motion data based on motion decomposition. Our method employs Independent Component Analysis (ICA) to separate motion data into visually meaningful components called style components. The user then interactively identifies suitable style components and manipulates them based on a proposed set of operations. In particular, the user can transfer style components from one motion to another in order to create new motions that retain desirable aspects of the style and expressiveness of the original motion. For example, a clumsy walking motion can be decomposed so as to separate the clumsy nature of the motion from the underlying walking pattern. The clumsy style component can then be applied to a running motion, which will then yield a clumsy-looking running motion. Our approach is simple, efficient and intuitive since the components are themselves motion data. We demonstrate that the proposed method can serve as an effective tool for interactive motion analysis and editing.