HORN-9: Special-purpose computer for electroholography with the Hilbert transform.

Area of Science:

• Optics and Photonics
• Computer Engineering
• Computer Graphics

Background:

• Holography enables 3D information recording and reproduction via light interference and diffraction.
• Electroholography, using computers for 3D holographic scenes, faces computational power limitations for real-time processing.
• Existing hardware struggles with the immense computing demands of practical holographic applications.

Purpose of the Study:

• To introduce and evaluate the performance of the holographic reconstruction (HORN)-9, a specialized computer for electroholography.
• To demonstrate the real-time processing capabilities of HORN-9 for computer-generated holograms.
• To compare the efficiency of HORN-9 against previous hardware, including GPUs and CPUs.

Main Methods:

• Development of HORN-9, a special-purpose computer incorporating the Hilbert transform for electroholography.
• Computation of a 1920x1080 pixel computer-generated hologram from a 65,000-point cloud using a single HORN-9 card.
• Real-time processing and display of 400,000 points using multiple HORN-9 units.

Main Results:

• HORN-9 computed a hologram from 65,000 points in 0.030 seconds (33 fps).
• This performance is 8x faster than HORN-8, 7x faster than a GPU, and 170x faster than a CPU.
• Four HORN-9 units achieved a 600x acceleration compared to a single CPU for processing 400,000 points.

Conclusions:

• HORN-9 offers significant advancements in computational efficiency for electroholography.
• The specialized hardware enables practical real-time processing of complex 3D holographic scenes.
• HORN-9 technology paves the way for more accessible and widespread holographic applications.