[Show abstract][Hide abstract] ABSTRACT: This research proposes 3D graphical agents in the role of virtual presenters with a new type of functionality � the capability to process and respond to visual attention of users communicated by their eye movements. Eye gaze is an excellent clue to users' attention, visual interest, and visual preference. Using state-of-the-art non-contact eye tracking technology, eye movements can be assessed in a unobtrusive way. By analyzing and interpreting eye behavior in real-time, our proposed system can adapt to the current (visual) interest state of the user, and thus provide a more personalized, context-aware, and 'attentive' experience of the presentation. The system implements a virtual presentation room, where research content of our institute is presented by a team of two highly realistic 3D agents in a dynamic and interactive way. A small preliminary study was conducted to investigate users' gaze behavior with a non-interactive version of the system. A demo video based on our system was awarded as the best application of life-like agents at the GALA event in 2006.
Proceedings of the 8th international symposium on Smart Graphics; 06/2007
[Show abstract][Hide abstract] ABSTRACT: In this paper we presented Obie, an embod-ied agent that experiences and expresses emo-tions. Obie has an adaptive, quantitative and domain-independent emotion component which appraises events to trigger emotions. Obie's emotions are expressed via his utterances or his facial expressions. The expression via utter-ances is done by a simple mapping from emo-tions to text fragments. The mapping from emo-tions to facial expressions is done by a fuzzy rule-based system. Obie's utterances and fa-cial expressions are presented in his 3D talking head. In the research described in this paper, Obie was implemented as a football supporter agent. We show how Obie experiences different emotions during a football match. We also indi-cate how Obie with different personalities expe-riences emotions differently.