Virtual Worlds and Virtual Humans
Stephane Donikian, IRISA / INRIA
The main objective of the Bunraku project-team is to develop cross fertilization of researches in the fields of virtual reality and virtual human. Our challenge is to allow real and virtual humans to naturally interact in a shared virtual environment. Virtual Human has at least two usages in a virtual reality environment, the first one is to represent a real human in the virtual world and it is then called an avatar, and the second one is to live autonomously inside the virtual environment, that is to say, perceive, decide and act on its own. Modelling the human behaviour requests to take into account a certain number of topics such as understanding mechanisms underlying functions such as natural language production and perception, memory activity, multi-sensory perception, muscular control and last but not least the production of emotions. The comprehension of the human behaviours requires competence in fields as varied as neurosciences, psychology, cognitive sciences, and biomechanics. However, our problem is not to reproduce the human intelligence but to propose an architecture making it possible to model credible behaviours of anthropomorphic virtual actors evolving/moving in real time in virtual worlds. The proposed architecture should mimic all the human intellectual and physical functions. In this presentation, we will present the multilayered model of virtual human developed in the team and how it is related to different results in other research fields such as biomechanics or cognitive sciences.