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Gesture Expressivity Modulations in an ECA Application

  • Nicolas Ech Chafai
  • Catherine Pelachaud
  • Danielle Pelé
  • Gaspard Breton
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4133)

Abstract

In this paper, we propose a study of co-verbal gesture properties that could enhance the animation of an Embodied Conversational Agent and their communicative performances. This work is based on the analysis of gesture expressivity over time that we have study from a corpus of 2D animations. First results point out two types of modulations in gesture expressivity that are evaluated on their communicative performances. A model of these modulations is proposed.

Keywords

Non-verbal and expressive behaviours annotation evaluation methodologies 2D and 3D animations 

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References

  1. Barrier, G., Caelen, J., Meillon, B.: La visibilité des gestes: Paramètres directionnels, intentionnalité du signe et attribution de pertinence. In: Workshop Francophone sur les Agents Conversationnels Animés, Grenoble, France, pp. 113–123 (2005)Google Scholar
  2. Bregler, C., Loeb, L., Chuang, E., Desphande, H.: Turning to masters: Motion capturing cartoons. In: SIGGRAPH 2002 (2002)Google Scholar
  3. Calbris, G.: L’expression gestuelle de la pensée d’un homme politique. Paris, CNRS Editions (2003)Google Scholar
  4. Choi, J., Kim, D., Lee, I.: Anticipation for facial animation. In: CASA 2004, Geneva, Switzerland, CGS (2004)Google Scholar
  5. Feyereisen, P.: La compréhension des gestes référentiels.Geste, cognition et communication, PULIM, 20–48 (1997)Google Scholar
  6. Gullberg, M., Holmqvist, K.: Keeping an eye on gestures: Visual perception of gestures in face-to-face communication. Pragmatics and Cognition 7, 35–63 (1999)CrossRefGoogle Scholar
  7. Hartmann, B., Mancini, M., Pelachaud, C.: Implementing expressive gesture synthesis for Embodied Conversational Agents. In: Gesture Workshop (2005)Google Scholar
  8. Kendon, A.: Gesture: Visible action as utterance. Cambridge University Press, Cambridge (2004)Google Scholar
  9. Kipp, M.: Gesture generation by imitation: From human behaviour to computer character animation. In: Faculties of Natural Sciences and Technology, Boca Raton, Florida (2004)Google Scholar
  10. Kita, S., Van Gijn, I., Van der Hulst, H.: Movement phases in signs and co-speech gestures, and their transcription by human coders. In: Gesture Workshop, Bielefeld, Germany. Springer, Heidelberg (1997)Google Scholar
  11. Lance, B., Marsella, S., Koizumi, D.: Towards expressive gaze manner in embodied virtual agents. In: AAMAS Workshop on Empathic Agents, New York (2004)Google Scholar
  12. Lasseter, J.: Principles of traditional animation applied to 3D computer animation. ACM Computer Graphics 21(4) (1987)Google Scholar
  13. Mann, W., Thompson, S.: Rhetorical Structure Theory. Toward a functional theory of text organization. Text 8(3), 243–281 (1988)Google Scholar
  14. Pelé, D., Breton, G., Panaget, F., Loyson, S.: Let’s find a restaurant with Nestor, a 3D Embodied Conversational Agent on the web. In: AAMAS Workshop on Embodied Conversational characters as individuals (2003)Google Scholar
  15. Poggi, I., Pelachaud, C.: Performative facial expressions in animated faces. In: Cassell, J., Prevost, S., Churchill, E. (eds.) Embodied Conversational Agents, pp. 155–188. MIT Press, Cambridge (2000)Google Scholar
  16. Poggi, I., Pelachaud, C., de Rosis, F., Carofiglio, V., De Carolis, B.: GRETA. A believable Embodied Conversational Agent. In: Stock, O., Zancarano, M. (eds.) Mutimodal Intelligent Information Presentation. Kluwer, Dordrecht (to appear, 2005)Google Scholar
  17. Sperber, D., Wilson, D.: La pertinence, Communication et cognition. Editions de Minuit, Paris (1989) (trad.: 1989)Google Scholar
  18. Thomas, F., Johnston, O.: Disney animation, The illusion of life. Abbeville Press, NewYork (1981)Google Scholar
  19. Wallbott, G.: Bodily expression of emotion. European Journal of Social Psychology 28, 879–896 (1998)CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Nicolas Ech Chafai
    • 1
    • 2
  • Catherine Pelachaud
    • 1
  • Danielle Pelé
    • 2
  • Gaspard Breton
    • 2
  1. 1.University of Paris 8 
  2. 2.France Télécom R&D 

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