Embodied Conversational Agents (ECAs) are a new paradigm of computer interface with a human-like aspect that allow users to interact with the machine through natural speech, gestures, facial expressions, and gaze. In this paper we present an head animation system for our ECA Greta and we focus on two of its aspects: the expressivity of movement and the computation of complex facial expressions. The system synchronises the nonverbal behaviours of the agent with the verbal stream of her speech; moreover it allows us to qualitatively modify the animation of the agent, that is to add expressivity to the agent's movements. Our model of facial expressions embeds not only the expressions of the set of basic emotions (e.g., anger, sadness, fear) but also different types of complex expressions like fake, inhibited, and masked expressions.

An expressive ECA showing complex emotions / Bevacqua, Elisabetta; Mancini, Maurizio; Niewiadomski, Radoslaw; Pelachaud, Catherine. - (2007), pp. 208-215. (Intervento presentato al convegno Artificial and Ambient Intelligence, AISB'07 tenutosi a Newcastle upon Tyne, gbr).

An expressive ECA showing complex emotions

Mancini Maurizio;
2007

Abstract

Embodied Conversational Agents (ECAs) are a new paradigm of computer interface with a human-like aspect that allow users to interact with the machine through natural speech, gestures, facial expressions, and gaze. In this paper we present an head animation system for our ECA Greta and we focus on two of its aspects: the expressivity of movement and the computation of complex facial expressions. The system synchronises the nonverbal behaviours of the agent with the verbal stream of her speech; moreover it allows us to qualitatively modify the animation of the agent, that is to add expressivity to the agent's movements. Our model of facial expressions embeds not only the expressions of the set of basic emotions (e.g., anger, sadness, fear) but also different types of complex expressions like fake, inhibited, and masked expressions.
2007
Artificial and Ambient Intelligence, AISB'07
Artificial Intelligence
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
An expressive ECA showing complex emotions / Bevacqua, Elisabetta; Mancini, Maurizio; Niewiadomski, Radoslaw; Pelachaud, Catherine. - (2007), pp. 208-215. (Intervento presentato al convegno Artificial and Ambient Intelligence, AISB'07 tenutosi a Newcastle upon Tyne, gbr).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1528237
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