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Nora Broy, Simone Hoeckh, Annette Frederiksen, Michael Gilowski, Felix Eichhorn, Felix Naser, Horst Jung, Julia Niemann, Martin Schell, Albrecht Schmidt, Florian Alt
Exploring Design Parameters for a 3D Head-Up Display
In PerDis '14: Proceedings of the 3rd ACM International Symposium on Pervasive Displays. Copenhagen, Denmark, June 3-4, 2014. ACM, New York, NY, USA. (bib)

Head-up displays (HUDs) nowadays are commonly used in cars to show basic driving information in the visual field of the viewer. This allows information to be perceived in a quick and easy to understand manner. With advances in technology, HUDs will allow richer information to be conveyed to the driver by exploiting the third dimension. We envision a stereoscopic HUD for displaying content in 3D space. This requires an understanding of how parallaxes impact the user's performance and comfort, which is the focus of this work. In two user studies involving 49 participants, we (a) gather insights into how visualization influences the comfort zone and (b) how stereoscopic visualization influences the depth judgement of the user. The results show that with larger projection distances both the comfort zone and the minimum comfortable viewing distance increase. Higher distances between the viewer and a real world object to be judged decrease the judgement accuracy.