Touching Floating Objects in Projection-based Virtual Reality Environments
Proceedings of the Joint Virtual Reality Conference (JVRC), page 17--24 - 2010
Touch-sensitive screens enable natural interaction without any instrumentation and support tangible feedback on
the touch surface. In particular multi-touch interaction has proven its usability for 2D tasks, but the challenges to
exploit these technologies in virtual reality (VR) setups have rarely been studied.
In this paper we address the challenge to allow users to interact with stereoscopically displayed virtual environments
when the input is constrained to a 2D touch surface. During interaction with a large-scale touch display a
user changes between three different states: (1) beyond the arm-reach distance from the surface, (2) at arm-reach
distance and (3) interaction. We have analyzed the user’s ability to discriminate stereoscopic display parallaxes
while she moves through these states, i. e., if objects can be imperceptibly shifted onto the interactive surface and
become accessible for natural touch interaction. Our results show that the detection thresholds for such manipulations
are related to both user motion and stereoscopic parallax, and that users have problems to discriminate
whether they touched an object or not, when tangible feedback is expected.
Images and movies
BibTex references
@InProceedings{VSBHSDK10, author = "Valkov, Dimitar and Steinicke, Frank and Bruder, Gerd and Hinrichs, Klaus H. and Schöning, Johannes and Daiber, Florian and Krüger, Antonio", title = "Touching Floating Objects in Projection-based Virtual Reality Environments", booktitle = "Proceedings of the Joint Virtual Reality Conference (JVRC)", pages = "17--24", year = "2010", url = "http://basilic.informatik.uni-hamburg.de/Publications/2010/VSBHSDK10" }