Grasp Motion Synthesis Based on Object Features

This paper presents a new scheme for synthesizing hand motion to grasp various objects. Hand motion has a variety of expression with its high degrees of freedom and the functional motions are especially complex and difficult to synthesize. This paper focuses on a fact that actual grasp motion varies depending on the features of the object including its size and shape, which give important clues for reproducing a proper hand motion to manipulate them. Based on this idea, we propose a scheme to sample grasp motions and synthesize the whole hand motion including approach to the object, preparation of the hand shape and grab motion. Synthesized animation demonstrated a potential for easily designing functional motions for hand animation.