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Related Experiment Video

Updated: Sep 11, 2025

Visualizing Visual Adaptation
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Brightness function across varying adapting luminance in head-mounted displays.

Zan Jin, Shining Ma, Yue Liu

    Journal of the Optical Society of America. A, Optics, Image Science, and Vision
    |August 12, 2025
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    Summary

    Brightness perception differs in head-mounted displays (HMDs). Stimuli appear brighter in HMDs than in real environments, especially at low adapting luminance levels, impacting virtual scene tone reproduction.

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    Area of Science:

    • Visual perception
    • Human-computer interaction
    • Image processing

    Background:

    • Brightness functions model perceived brightness and stimulus luminance.
    • Accurate brightness functions are crucial for tone reproduction across media.
    • Previous research focused on real-world viewing conditions.

    Purpose of the Study:

    • Investigate brightness perception in head-mounted displays (HMDs).
    • Determine the applicability of traditional brightness functions to HMDs.
    • Assess brightness perception in complex virtual scenes under varying luminance.

    Main Methods:

    • Utilized a magnitude estimation method.
    • Collected brightness ratings for complex images.
    • Varied adapting luminance levels during testing.

    Main Results:

    • Observed systematic deviations from model predictions.
    • Stimuli appeared brighter in HMDs compared to real-world viewing.
    • Brightness differences were more pronounced at lower adapting luminance levels.

    Conclusions:

    • Traditional brightness functions may not directly apply to HMDs.
    • HMD viewing conditions, possibly due to field of view, alter brightness perception.
    • Further research is needed for accurate tone reproduction in virtual environments.