Perceptual gaze extent & level of detail in VR: looking outside the box

ABSTRACT

A common assumption exploited in perceptual Virtual Reality studies is that eye movements made while immersed in VR generally do not deviate more than 30° (visual angle) from the head-centric view direction (e.g., see Barnes [1979]). In this sketch we report eye tracking evidence which generally supports this observation in the context of peripheral Level Of Detail management during a visual search task in VR. We present results from experiments based on the work of Watson et al. [1997] and discuss an extension to the peripheral degradation paradigm to include a dynamic eye-slaved high-resolution inset.

REFERENCES

• 1: Barnes, G. R. 1979. Vestibulo-Ocular Function During Co-ordinated Head and Eye Movements to Acqurie Visual Targets. Journal of Physiology, 127--147.
• 2: Murphy, H., and Duchowski, A. T. 2001. Gaze-Contingent Level Of Detail. In EuroGraphics (Short Presentations), EuroGraphics.
• 3: Benjamin Watson , Neff Walker , Larry F. Hodges , Aileen Worden, Managing level of detail through peripheral degradation: effects on search performance with a head-mounted display, ACM Transactions on Computer-Human Interaction (TOCHI), v.4 n.4, p.323-346, Dec. 1997 [doi>10.1145/267135.267137]