Animated faces for robotic heads: gaze and beyond

Authors:
Samer Al Moubayed;Jonas Beskow;Jens Edlund;Björn Granström;David House
Affiliations:
Department of Speech, Music and Hearing, KTH Royal Institute of Technology, Stockholm, Sweden;Department of Speech, Music and Hearing, KTH Royal Institute of Technology, Stockholm, Sweden;Department of Speech, Music and Hearing, KTH Royal Institute of Technology, Stockholm, Sweden;Department of Speech, Music and Hearing, KTH Royal Institute of Technology, Stockholm, Sweden;Department of Speech, Music and Hearing, KTH Royal Institute of Technology, Stockholm, Sweden
Venue:
COST'10 Proceedings of the 2010 international conference on Analysis of Verbal and Nonverbal Communication and Enactment
Year:
2010

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Abstract

We introduce an approach to using animated faces for robotics where a static physical object is used as a projection surface for an animation. The talking head is projected onto a 3D physical head model. In this chapter we discuss the different benefits this approach adds over mechanical heads. After that, we investigate a phenomenon commonly referred to as the Mona Lisa gaze effect. This effect results from the use of 2D surfaces to display 3D images and causes the gaze of a portrait to seemingly follow the observer no matter where it is viewed from. The experiment investigates the perception of gaze direction by observers. The analysis shows that the 3D model eliminates the effect, and provides an accurate perception of gaze direction. We discuss at the end the different requirements of gaze in interactive systems, and explore the different settings these findings give access to.