Abstract

A fast calculation method for a full parallax high-resolution hologram is proposed based on elemental light field image (EI) rendering. A 3D object located near the holographic plane is firstly rendered as multiple EIs with a pinhole array. Each EI is interpolated and multiplied by a divergent sphere wave and interfered with a reference wave to form a hogel. Parallel acceleration is used to calculate the high-resolution hologram because the calculation of each hogel is independent. A high-resolution hologram with the resolution of 200,000 × 200,000 pixels is calculated within only eight minutes. Full parallax high-resolution 3D displays are realized by optical reconstructions.

Highlights

  • Holography can fully reconstruct 3D scenes with all phase and amplitude information

  • This principle of the home-made holographic printer is similar to the holographic printer introduced in Reference [12], but the light source in our holographic printer is a blue light emitting diodes (LEDs) with a center wavelength of 365 nm rather than a laser

  • Almost half of the highest resolution is used for hologram design

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Summary

Introduction

Traditional optical holography can record very high-resolution holograms with lasers as illumination, but a stable optical platform is needed, as well as other optical devices. In contrast to optical holography, the 3D information can be coded into a computer-generated hologram for holographic 3D display [1,2]. Many efforts for dynamic holographic displays have been made for monochrome or color displays using lasers or light emitting diodes (LEDs) as illumination [3,4,5,6,7,8]. The progress on dynamic holographic 3D displays, still have proven difficult due to the constraints of limited bandwidth of the current available spatial light modulator (SLM) and huge amount of calculations. High-resolution holograms such as rainbow holograms and Fresnel holograms are applicable for

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