An intuitive user interface for motion retrieval on a mobile multi-touch device

This paper proposes a technique that allows novice users to retrieve motions using a mobile multi-touch device. A user first inputs a motion that he wants to obtain by manipulating a part of a character skeleton with multiple fingers. The proposed system automatically retrieves a couple of candidate motions from a motion database and visualizes them to the user. He selects one of them and manipulates a different part of the skeleton. Then the system generates a new motion by synthesizing multiple motion data retrieved through different parts of skeleton manipulations. By manipulating skeletons and retrieving motions iteratively, the user can obtain his desired motion in an efficient and easy manner. A pilot study has been conducted using the proposed system to clarify problems to be solved and functions to be improved.