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Simplifying the Integration of Virtual Humans into Dialog-like VR Systems

: Jung, Yvonne; Behr, Johannes

Latoschik, M.E.; Reiners, D.; Blach, R.; Figueroa, P.; Dachselt, R. ; Institute of Electrical and Electronics Engineers -IEEE-:
2nd Workshop on Software Engineering and Architectures for Realtime Interactive Systems (SEARIS@VR 2009) : IEEE VR 2009 workshop, March 14, 2009, Lafayette, Louisiana, USA. Proceedings of the IEEE Virtual Reality 2009 workshop
Aachen: Shaker, 2009
ISBN: 978-3-8322-8393-3
Workshop on Software Engineering and Architectures for Realtime Interactive Systems (SEARIS) <2, 2009, Lafayette/La.>
Fraunhofer IGD ()
multimedia information systems; Augmented reality (AR); Virtual reality (VR); 3D Graphics; realism; 3D animation

In this paper we describe an X3D-based framework for simplifying the integration of virtual characters into dialog-based VR systems, by introducing another level of abstaction on top of X3D by means of a higher level language, which can be used for module communication and for coordinating the conversational behaviour of virtual humans. Therefore, we propose an self-contained and integrated system with matching techniques and building blocks that not only provides flexible control of the character, but also considers resultant dependencies, which need to be simulated during runtime. Furthermore, our system also takes physiological processes into account, which is essential for the correct perception of some emotions in the context of nonverbal communication. Thus, our proposed approach offers more efficiency by means of the integration into more abstact system architectures, into well established visualization techniques like the scene-graph, and into existing open standards.