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Measuring Sensitivity to Viewpoint Change with and without Stereoscopic Cues
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Dooyoung Kim, Jinseok Hong, Heejeong Ko

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    Summary
    This summary is machine-generated.

    Shared 3D depth perception is achievable on wall-sized displays without individual tracking. Human cognitive compensation enables compelling depth experiences for multiple users, even from off-center viewpoints.

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    Area of Science:

    • Human-Computer Interaction
    • Extended Reality (XR)
    • Perceptual Psychology

    Background:

    • Traditional 3D displays focus on single-user scenarios with individual tracking.
    • Wall-sized displays for multi-user spatial experiences and perceptually coherent interactions are underexplored.
    • Extending spatial experiences beyond 2D information sharing is a growing area of interest.

    Purpose of the Study:

    • To propose viewpoint-tolerant shared depth perception on wall-sized displays without individual tracking.
    • To investigate the effects of virtual depth and viewing distance on human cognitive compensation.
    • To construct a wall display-based Extended Reality (XR) space leveraging cognitive compensation.

    Main Methods:

    • Investigated effects of virtual depths (dv) and absolute viewing distance (da) on cognitive compensation factors.
    • Measured perceived distance difference, viewing angle threshold, and perceived presence.
    • Utilized universally 3D rendered images on a wall-sized display.

    Main Results:

    • Participants achieved compelling depth perception from off-center angles (23°-37°).
    • Increased virtual depth generally worsened depth perception and presence.
    • A balance between virtual depth and viewing distance is crucial for optimal perception.

    Conclusions:

    • Viewpoint-tolerant shared depth perception is feasible on wall-sized displays using cognitive compensation.
    • Wall-sized displays can offer immersive group experiences without individualized tracking or wearables.
    • Applications in museums, galleries, and classrooms can transition from 2D to spatial, extended group experiences.