Enhancing Emotional Facial Expressiveness on NAO
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Robots can express emotions for better human robot interaction. In this field, NAO robot is a platform widely used. This robot mainly expresses emotions by gestures and colored LED eyes, but, due to its white flat and inanimate face, the robot cannot express facial expressions. This work proposes a pluggable eyebrows device enabling NAO to express anger or sadness while performing other tasks. This device is plug-and-play and directly controllable by NAO’s development environments. Additionally, we developed a platform independent mapping of eyebrows angles with emotions. We first conducted an experiment that qualitatively attests the interest of this device. Three following experiments were conducted to: (1) confirm the relation between eyebrows angle and expressed emotion; (2) evaluate different shapes in order to select the most appropriate one; (3) prove that NAO is able to use the eyebrows to express emotions while performing non emotional tasks.
KeywordsFacial expressions Emotions Nao robot Eyebrow Humanoid robot Eyes color
The work leading to these results has received funding from the European Commission 7th Framework Program as a part of the project DREAM Grant No. 611391.
- 1.(2015) Prolific academic. http://www.prolific.ac/
- 3.Beck A, Cañamero L, Bard K, et al (2010) Towards an affect space for robots to display emotional body language. In: Ro-man, 2010 IEEE, pp 464–469Google Scholar
- 4.Cole J (1999) About face. MIT Press, CambridgeGoogle Scholar
- 5.De Beir A, Cao HL, Esteban PG, Van de Perre G, Vanderborght B (2015) Enhancing nao expression of emotions using pluggable eyebrows. In: Conference proceedings new friends 2015Google Scholar
- 7.Ekman P (2007) Emotions revealed: recognizing faces and feelings to improve communication and emotional life. Macmillan, New YorkGoogle Scholar
- 8.Häring M, Bee N, André E (2011) Creation and evaluation of emotion expression with body movement, sound and eye color for humanoid robots. In: RO-MAN, 2011 IEEE, pp 204–209Google Scholar
- 10.LimeSurvey Project Team/Carsten Schmitz (2015) LimeSurvey An Open Source survey tool. LimeSurvey Project, Hamburg. http://www.limesurvey.org
- 11.Mazzei D, Cominelli L, Lazzeri N, Zaraki A, De Rossi D (2014) I-clips brain, a hybrid cognitive system for social robots. In: Biomimetic and biohybrid systems, Springer, New York, pp 213–224Google Scholar
- 12.Mehrabian A (1977) Nonverbal communication. Transaction Publishers, PiscatawayGoogle Scholar
- 16.R Core Team (2015) R A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. https://www.R-project.org