Motion Transplantation Techniques: A Survey

During the past decade, researchers have developed several techniques for transplanting motions. These techniques transplant a partial auxiliary motion, possibly defined for a small set of degrees of freedom, on a base motion. Motion transplantation improves motion databases' expressiveness and allows more control in interactive applications by letting users synthesize body parts separately. However, the auxiliary motion must be properly aligned with the base motion, both temporally and spatially. This article provides an overview of example-based motion transplantation techniques and explains how they determine spatial and temporal alignment between the auxiliary and base motions. It also describes hybrid techniques that can transplant the motions resulting from procedural or physics-based techniques.