Jonathan Mercier-Ganady
ABSTRACT
In this paper we introduce a novel and interactive approach for controlling optical camouflage called "B-C-Invisibility power". We propose to combine augmented reality and Brain-Computer Interface (BCI) technologies to design a system which somehow provides the "power of becoming invisible". Our optical camouflage is obtained on a PC monitor combined with an optical tracking system. A cut out image of the user is computed from a live video stream and superimposed to the prerecorded background image using a transparency effect. The transparency level is controlled by the output of a BCI, making the user able to control her invisibility directly with mental activity. The mental task required to increase/decrease the invisibility is related to a concentration/relaxation state. Results from a preliminary study based on a simple video-game inspired by the Harry Potter universe could notably show that, compared to a standard control made with a keyboard, controlling the optical camouflage directly with the BCI could enhance the user experience and the feeling of "having a super-power".
- George, L., Lotte, F., Abad, R. V., and Lécuyer, A. Using scalp electrical biosignals to control an object by concentration and relaxation tasks: design and evaluation. In Proc. of the IEEE Int. Conf. EMBS (2011).Google Scholar
Cross Ref
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- Inami, M., Kawakami, N., and Tachi, S. Optical camouflage using retro-reflective projection technology. In Proc. of the IEEE/ACM Int. Symp. on Mixed and Augmented Reality (2003). Google ScholarDigital Library
- Ishibashi, K., Da Luz, T., Eynard, R., Kita, N., Jiang, N., Segi, H., Terada, K., Fujita, K., and Miyata, K. Spider hero: A VR application using pulling force feedback system. In Proc. of the Int. Conf. on Virtual Reality Continuum and its Applications in Industry (2009). Google ScholarDigital Library
- Renard, Y., Lotte, F., Gibert, G., Congedo, M., Maby, E., Delannoy, V., Bertrand, O., and Lécuyer, A. OpenViBE: An open-source software platform to design, test, and use brain-computer interfaces in real and virtual environments. Presence: Teleop. and Virtual Environments 19 (2010). Google ScholarDigital Library
- Rosenberg, R. S., Baughman, S. L., and Bailenson, J. N. Virtual superheroes: Using superpowers in virtual reality to encourage prosocial behavior. PloS one 8, 1 (2013).Google Scholar
Index Terms
- B-C-invisibility power: introducing optical camouflage based on mental activity in augmented reality
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