Using Perlin Noise to Generate Emotional Expressions in a Robot

TitleUsing Perlin Noise to Generate Emotional Expressions in a Robot
Publication TypeConference Paper
Year of Publication2013
AuthorsBeck, A., Hiolle A., & Cañamero L.
Name of ProceedingsProc. Annual Meeting of the Cognitive Science Society (CogSci 2013)
PublisherCognitive Science Society
Conference LocationBerlin, Germany
ISBN Number978-0-9768318 -9-1

The development of social robots that convey emotion with their bodies---instead of or in conjunction with their faces---is an increasingly active research topic in the field of human-robot interaction (HRI). Rather than focusing either on postural or on dynamics aspects of bodily expression in isolation, we present a model and an empirical study where we combine both elements and produce expressive behaviors by adding dynamic elements (in the form of Perlin noise) to a subset of static postures prototypical of basic emotions, with the aim of creating expressions easily understandable by children and at the same time lively and flexible enough to be believable and engaging. Results show that the noise increases the recognition rate of the emotions portrayed by the robot.