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C. Pelachaud, E. Bevacqua, G. Caridakis, K. Karpouzis, M. Mancini, C. Peters, A. Raouzaiou
Mimicking from perception and interpretation
Enactive 06 - 3rd International Conference on Enactive Interfaces
ABSTRACT
The ability for an agent to provide feedback to a user is an important means for signalling to the world that they are animated, engaged and interested. Feedback influences the plausibility of an agentĘs behaviour with respect to a human viewer and enhances the communicative experience. During conversation addressees show their interest, their understanding, agreeing and attitudes through feedback signals. They also indicate their level of engagement. It is often said that speaker and addressee dance with each other when being engaged in a conversation. This dancing together is partly due to the mimicking of the speakerĘs behavior by the addressee. In this paper we are interested in addressing this issue: mimicking as a signal of engagement. We have developed a scenario whereby an agent senses, interprets and copies a range of facial and gesture expression from a person in the real-world. Input is obtained via a video camera and processed initially using computer vision techniques. It is then processed further in a framework for agent perception, planning and behaviour generation in order to perceive, interpret and copy a number of gestures and facial expressions corresponding to those made by the human. By perceive, we mean that the copied behaviour may not be an exact duplicate of the behaviour made by the human and sensed by the agent, but may rather be based on some level of interpretation of the behaviour. Thus, the copied behaviour may be altered and need not share all of the characteristics of the original made by the human.
20 November , 2006
C. Pelachaud, E. Bevacqua, G. Caridakis, K. Karpouzis, M. Mancini, C. Peters, A. Raouzaiou, "Mimicking from perception and interpretation", Enactive 06 - 3rd International Conference on Enactive Interfaces
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