Pinocchio - Automatic Rigging and Animation
Referring to: Pinocchio - Automatic Rigging and Animation - YouTube
Software that takes a stick figure animation and a 3D model, and applies the stick figure motion to the model.
Apparently it works by trying to compute a way to embed the stick figure INTO the model in a way that minimized the amount of distortion necessary to make the motion "fit" the 3D character.