High-quality and efficient phase-only hologram generation method based on complex amplitude constrained Gerchberg-Saxton algorithm

IF 3.7 2区工程技术 Q1 COMPUTER SCIENCE, HARDWARE & ARCHITECTURE

Displays Pub Date : 2025-01-15 DOI:10.1016/j.displa.2025.102965

Ye-Hao Hou, Zhao-Song Li, Yi-Wei Zheng, Qian Huang, Yi-Long Li, Di Wang, Qiong-Hua Wang

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引用次数: 0

Abstract

The holographic display garners widespread attention for its ability to provide vivid and realistic 3D visuals. The Gerchberg-Saxton (GS) algorithm has played a significant role in computer-generated holography for many years. However, the conventional GS algorithm cannot meet the requirements of holographic display for high-quality and realistic visual effects. In this paper, a phase-only hologram generation method is proposed based on the complex amplitude constrained GS (CAC-GS) algorithm. In the proposed method, all information of the 3D scene is precalculated as a complex amplitude field at a target plane, and then the CAC-GS algorithm is used to reconstruct the target complex amplitude field and generate the hologram. The proposed method constrains both amplitude and phase on a target plane, thus significantly improving the image quality and efficiency of the hologram generation. Compared with the conventional GS algorithm, the holographic image quality of the proposed method is improved by approximately 50 %, and the calculation time is reduced by 97.27 %. This novel algorithm holds great promise for a wide range of applications including AR and VR.

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基于复幅约束Gerchberg-Saxton算法的高质量高效纯相位全息图生成方法

全息显示器因其提供生动逼真的3D视觉效果的能力而受到广泛关注。多年来，Gerchberg-Saxton （GS）算法在计算机生成全息术中发挥了重要作用。然而，传统的GS算法无法满足全息显示对高质量、逼真的视觉效果的要求。本文提出了一种基于复幅约束高斯（CAC-GS）算法的纯相位全息图生成方法。该方法将三维场景的所有信息预先计算为目标平面上的复振幅场，然后利用CAC-GS算法重建目标的复振幅场并生成全息图。该方法在目标平面上同时约束了振幅和相位，从而显著提高了全息图的成像质量和生成效率。与传统的GS算法相比，该方法的全息图像质量提高了约50%，计算时间缩短了97.27%。该算法在包括AR和VR在内的广泛应用中具有很大的前景。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Displays 工程技术-工程：电子与电气

CiteScore

4.60

自引率

25.60%

发文量

138

审稿时长

92 days

期刊介绍： Displays is the international journal covering the research and development of display technology, its effective presentation and perception of information, and applications and systems including display-human interface. Technical papers on practical developments in Displays technology provide an effective channel to promote greater understanding and cross-fertilization across the diverse disciplines of the Displays community. Original research papers solving ergonomics issues at the display-human interface advance effective presentation of information. Tutorial papers covering fundamentals intended for display technologies and human factor engineers new to the field will also occasionally featured.