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Dynamic three-dimensional light-field display with large viewing angle based on compound lenticular lens array and

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    This study presents a dynamic three-dimensional (3D) light-field display for high-resolution terrain rendering. The novel system offers improved spatial accuracy and occlusion relationships, enhancing user judgment in electronic maps.

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    Area of Science:

    • Computer Graphics
    • Display Technology
    • Optics

    Background:

    • High-resolution real-time terrain rendering is crucial for electronic maps.
    • Traditional 2D displays lack spatial accuracy due to absent occlusion relationships.
    • 3D displays are needed to overcome limitations of 2D terrain visualization.

    Purpose of the Study:

    • To demonstrate a dynamic three-dimensional (3D) light-field display.
    • To improve spatial accuracy and occlusion perception in terrain rendering.
    • To enhance the user experience in electronic map applications.

    Main Methods:

    • Utilized three projectors for wide-angle (90°) viewing.
    • Employed a compound lenticular lens array for aberration balancing and quality improvement.
    • Integrated a holographic functional screen to recompose light distribution.
    • Rendered 3D images and synchronized projectors for dynamic display.

    Main Results:

    • Achieved a dynamic 3D light-field display with a 90° viewing angle.
    • The display provided 96 perspectives, ensuring correct geometric occlusion.
    • Demonstrated smooth parallax within the viewing range.
    • Successfully enhanced spatial accuracy and observer judgment.

    Conclusions:

    • The developed 3D light-field display effectively addresses limitations of 2D terrain rendering.
    • The system provides superior occlusion and parallax, improving spatial understanding.
    • This technology has significant potential for advanced electronic map applications.