Consistent Viewing and Interaction for Multiple Users in Projection-Based VR Systems

dc.contributor.authorDe Haan, Gerwinen_US
dc.contributor.authorMolenaar, Reneen_US
dc.contributor.authorKoutek, Michalen_US
dc.contributor.authorPost, Frits H.en_US
dc.date.accessioned2015-02-21T15:43:26Z
dc.date.available2015-02-21T15:43:26Z
dc.date.issued2007en_US
dc.description.abstractIn projection-based Virtual Reality (VR) systems, typically only one headtracked user views stereo images rendered from the correct view position. For other users, who are presented a distorted image, moving with the first user s head motion, it is difficult to correctly view and interact with 3D objects in the virtual environment. In close-range VR systems, such as the Virtual Workbench, distortion effects are especially large because objects are within close range and users are relatively far apart. On these systems, multi-user collaboration proves to be difficult. In this paper, we analyze the problem and describe a novel, easy to implement method to prevent and reduce image distortion and its negative effects on close-range interaction task performance. First, our method combines a shared camera model and view distortion compensation. It minimizes the overall distortion for each user, while important user-personal objects such as interaction cursors, rays and controls remain distortion-free. Second, our method retains co-location for interaction techniques to make interaction more consistent. We performed a user experiment on our Virtual Workbench to analyze user performance under distorted view conditions with and without the use of our method. Our findings demonstrate the negative impact of view distortion on task performance and the positive effect our method introduces. This indicates that our method can enhance the multi-user collaboration experience on close-range, projection-based VR systems.en_US
dc.description.number3en_US
dc.description.seriesinformationComputer Graphics Forumen_US
dc.description.volume26en_US
dc.identifier.doi10.1111/j.1467-8659.2007.01093.xen_US
dc.identifier.issn1467-8659en_US
dc.identifier.pages695-704en_US
dc.identifier.urihttps://doi.org/10.1111/j.1467-8659.2007.01093.xen_US
dc.publisherThe Eurographics Association and Blackwell Publishing Ltden_US
dc.titleConsistent Viewing and Interaction for Multiple Users in Projection-Based VR Systemsen_US
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