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    Area of Science:

    • Optics
    • Display Technology
    • Computer Vision

    Background:

    • Crosstalk significantly degrades the viewing experience in auto-stereoscopic 3D displays using frontal projection lenticular sheets.
    • Unclear stereo vision and ghosting are prevalent issues, particularly in marginal viewing zones (MVZs).

    Purpose of the Study:

    • To analyze and design lenticular sheet aberrations in conjunction with frontal projectors to suppress crosstalk and ghosting.
    • To enhance stereo vision clarity and overall 3D image quality in auto-stereoscopic displays.

    Main Methods:

    • Theoretical analysis and experimental design of lenticular sheets, focusing on radius of curvature (ROC) and aperture.
    • Utilizing a projector array with 20 micro-projectors to display 20 parallax images onto a large lenticular sheet (1.9 m × 1.2 m) with a 10 mm ROC.
    • Investigating the impact of varying ROC and aperture on aberration and crosstalk reduction.

    Main Results:

    • Increasing the radius of curvature (ROC) or decreasing the aperture of the lenticular sheet effectively suppresses aberration and reduces crosstalk.
    • High-quality 3D images were experimentally demonstrated across both mid-viewing and marginal viewing zones.
    • A significant 3D clear depth of 1.2 meters was achieved.

    Conclusions:

    • A novel lenticular sheet structure effectively reduces aberration and suppresses crosstalk.
    • The optimized design provides an excellent 3D image quality while simultaneously enlarging the field of view.
    • The findings contribute to improved visual fidelity in large-format auto-stereoscopic 3D display systems.