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Multimodal interaction in collaborative virtual environments

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4 Author(s)
Goto, T. ; MiraLab., Geneva Univ., Switzerland ; Escher, M. ; Zanardi, C. ; Magnenat-Thalmann, N.

Human interfaces for computer graphics systems are now evolving towards a total multi-modal approach. Information gathered using visual, audio and motion capture systems are now becoming increasingly important within user-controlled virtual environments. This paper discusses real-time interaction through the visual analysis of human face feature. The underlying approach to recognize and analyze the facial movements of a real performance is described in detail. The output of the program is directly compatible with MPEG-4 standard parameters and therefore enhances the ability to use the available data in any other MPEG-4 compatible application. The real-time facial analysis system gives the user the ability to control the graphics system by means of facial expressions. This is used primarily with real-time facial animation systems, where the synthetic actor reproduces the animator's expression. The MPEG-4 standard mainly focuses on networking capabilities and it therefore offers interesting possibilities for teleconferencing, as the requirements for the network bandwidth are quite low

Published in:

Image Processing, 1999. ICIP 99. Proceedings. 1999 International Conference on  (Volume:3 )

Date of Conference:

1999