DOI:10.1145/2070781.2024222

Extracted Abstract:

ing with credit is permitted. To copy otherwise, to republish, to post on servers, to redistribute to lists, or to use any component of this work in other works requires prior specifi c permission and/or a fee. Permissions may be requested from Publications Dept., ACM, Inc., 2 Penn Plaza, Suite 701, New York, NY 10121-0701, fax +1 (212) 869-0481, or permissions@acm.org. © 2011 ACM 0730-0301/2011/12-ART188 $10.00 DOI 10.1145/2024156.2024222 http://doi.acm.org/10.1145/2024156.2024222 C1x6: A Stereoscopic Six-User Display for Co-located Collaboration in Shared Virtual Environments Alexander Kulik ∗,1 Andr ́ e Kunert ∗,1 Stephan Beck ∗,1 Roman Reichel ∗,1 Roland Blach †,2 Armin Zink ‡,3 Bernd Froehlich ∗,1 1 Bauhaus-Universit ̈ at Weimar 2 Fraunhofer IAO 3 digital IMAGE Abstract Stereoscopic multi-user systems provide multiple users with in- dividual views of a virtual environment. We developed a new projection-based stereoscopic display for six users, which employs six customized DLP projectors for fast time-sequential image dis- play in combination with polarization. Our intelligent high-speed shutter glasses can be programmed from the application to adapt to the situation. For instance, it does this by staying open if users do not look at the projection screen or switch to a VIP high brightness mode if less than six users use the system. Each user is tracked and can move freely in front of the display while perceiving perspec- tively correct views of the virtual environment. Navigating a group of six users through a virtual world leads to situations in which the group will not fit through spatial constric- tions. Our augmented group navigation techniques ameliorate this situation by fading out obstacles or by slightly redirecting individ- ual users along a collision-free path. While redirection goes mostly unnoticed, both techniques temporarily give up the notion of a con- sistent shared space. Our user study confirms that users generally prefer this trade-off over na ̈ ıve approaches. CR Categories:B4.2 [INPUT/OUTPUT AND DATA COMMU- NICATIONS]: Input/Output Devices—Image Display; H5.1 [IN- FORMATION INTERFACES AND PRESENTATION]: Multime- dia Information Systems—Artificial, augmented, and virtual reali- ties Keywords:Virtual Reality, Display Technology, Collaboration Links:DLPDFWEB 1