Comparison of Cross-Reality Transition Techniques Between 3D and 2D Display Spaces in Desktop-AR Systems

Area of Science:

• Human-Computer Interaction
• Virtual Reality
• Augmented Reality

Background:

• The proliferation of Augmented Reality (AR) devices and traditional desktop setups necessitates methods for seamless virtual object transitions between 3D and 2D environments.
• Future hybrid interfaces will require efficient user interaction for transferring virtual objects between display spaces.

Purpose of the Study:

• To investigate and compare user performance and preference for different techniques of transitioning virtual objects between 3D AR and 2D display spaces.
• To understand the usability of hybrid interaction methods in mixed display environments.

Main Methods:

• Developed and evaluated three virtual object transition techniques: Mouse-based, Hand-based, and Modality Switch.
• Conducted a user study (N=24) comparing these techniques, plus a free-switching condition, for tasks involving virtual brick manipulation and placement.
• Assessed user preference and performance metrics, including transition speed and mental demand.

Main Results:

• The Modality Switch technique resulted in higher mental demand and was less preferred by users.
• The mouse-based technique demonstrated superior performance, enabling faster virtual object transitions.
• Participants favored the mouse-based approach for its efficiency in transferring objects and performing fine adjustments.

Conclusions:

• Mouse-based interaction is an effective and preferred method for transitioning virtual objects between 3D AR and 2D displays in hybrid setups.
• Optimizing transition techniques is crucial for enhancing user experience and efficiency in mixed-reality environments.