4.6 Article

Motion Parallax Holograms Generated from an Existing Hologram

Journal

APPLIED SCIENCES-BASEL
Volume 11, Issue 7, Pages -

Publisher

MDPI
DOI: 10.3390/app11072933

Keywords

computer-generated hologram; head-mounted display; holographic display; holography; motion parallax

Funding

  1. Japan Society for the Promotion of Science [19H04132, 19H01097]

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This study proposes a method to generate holograms with different motion parallax from existing ones without re-rendering 3D scenes and re-calculating holograms, using Fourier band-pass filtering and trigonometric functions to simplify computational processes.
Generating new motion parallax holograms is required for holographic head-mounted displays when the head moves. Additionally, it is required for hologram generation from light field data that consist of a number of motion parallax images. However, re-rendering three-dimensional (3D) scenes and re-calculating holograms are computationally complex. Therefore, we propose a generation strategy of holograms with different motion parallax from an existing hologram without re-rendering 3D scenes and re-calculating holograms. The proposed method employs Fourier band-pass filtering and the simple relation of trigonometric functions, which makes it capable of skipping the computationally complex processes.

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