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Multi-Scale 7DOF View Adjustment
IEEE Transactions on Visualization and Computer Graphics
|February 18, 2017
Summary
Virtual reality navigation using 7 degree-of-freedom (DOF) view models benefits from dynamic view adjustments. Auto-adjustments can improve task completion time and reduce visual issues, but their effectiveness varies with specific circumstances.
Area of Science:
- Computer Graphics
- Human-Computer Interaction
- Virtual Reality
Background:
- Multi-scale virtual environments require advanced rendering techniques like out-of-core rendering.
- Virtual reality (VR) systems utilize a 7 degree-of-freedom (DOF) view model, incorporating view scale as a distinct control.
- Usability in VR is significantly impacted by dynamic adjustments of view parameters.
Purpose of the Study:
- To evaluate the interaction between two view adjustment techniques and uni-manual/bi-manual 7DOF navigation.
- To assess the impact of these interactions on user performance in DesktopVR and CAVE environments.
- To identify the conditions under which dynamic view adjustments are most beneficial.
Main Methods:
- Users performed a two-stage travel task: targeted zoom and geometric inspection.
- Navigation was conducted using uni-manual and bi-manual 7DOF control schemes.
- Experiments were performed in both DesktopVR and CAVE immersive environments.
Main Results:
- Auto-adjustments demonstrated benefits in reducing task completion time and mitigating stereo fusion issues.
- The effectiveness of auto-adjustments was contingent upon specific environmental and interaction circumstances.
- Analysis of peculiar view configurations highlighted challenges in developing universally robust adjustment rules.
Conclusions:
- Dynamic view adjustments offer potential usability improvements in multi-scale VR environments.
- Careful consideration of context is necessary for designing effective auto-adjustment strategies.
- Further research is needed to develop more robust and adaptable view adjustment techniques for complex VR scenarios.
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