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    We developed a fast, one-step method for computing Fresnel holograms, enabling real-time 3D perception in augmented and virtual reality. This technique significantly speeds up hologram generation for complex scenes using GPU acceleration.

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    Area of Science:

    • Optics and Photonics
    • Computer Graphics
    • Immersive Technologies

    Background:

    • Holography is key for realistic 3D perception in augmented reality (AR) and virtual reality (VR).
    • Real-time hologram computation for complex 3D scenes remains a significant computational challenge.
    • Existing methods struggle with the speed and complexity required for dynamic holographic displays.

    Purpose of the Study:

    • To introduce a novel, efficient one-step technique for calculating Fresnel diffraction integrals.
    • To enable real-time hologram computation for complex 3D scenes.
    • To improve the fidelity of 3D perception in holographic applications.

    Main Methods:

    • A one-step technique based on the split-Lohmann method is proposed.
    • The method involves successive operations in both spatial and frequency domains.
    • A Graphics Processing Unit (GPU) implementation was utilized for acceleration.

    Main Results:

    • The proposed technique computes Fresnel holograms of complex scenes in real time.
    • The GPU implementation achieved speeds up to 18.1 times faster than layer-based approaches.
    • Optical experiments on a 4K full-color holographic display confirmed high-fidelity 3D perception.

    Conclusions:

    • The developed one-step split-Lohmann method offers a computationally efficient solution for real-time hologram generation.
    • This advancement significantly enhances the feasibility of high-fidelity 3D perception in AR/VR.
    • The technique paves the way for more immersive and interactive holographic experiences.