Abstract
We developed a robot face that can mechanically create facial expressions that actualizes 3D computer graphic morphing techniques, especially around the mouth. Using the mechanism we expect robots to have a wider range of expressions in human-robot communication, not just emotion theory based expressions but expressions that are designed and created. The facial expression mechanism uses multiple control points that moves and traces the surface of the robot's face using combination of trajectories. The movements of control points used here are similar to the transferring vertices that changes expressions of graphical models seen in 3D-CG, therefore actualizes computer graphics. At the end of the paper we evaluate the actualization by overlapping the computer graphic expression images and the actual robot expressions and see the visual closeness of the two expressions.
