Large field-of-view holographic display method with speckle noise suppression based on time multiplexing,Journal of the Society for Information Display

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Large field-of-view holographic display method with speckle noise suppression based on time multiplexing
Journal of the Society for Information Display ( IF 1.7 ) Pub Date : 2021-06-02 , DOI: 10.1002/jsid.1063
Su‐Juan Liu _{1,

2} , Ning‐Tao Ma ₁ , Feng‐Xiao Zhai ₁ , Nan‐Nan Liu ₁ , Ping‐Ping Li ₁ , Yun‐Qi Hao ₁ , Di Wang ₃

Affiliation

In this paper, we propose a method to enlarge the field of view (FOV) in holographic display with speckle noise suppression. Different from the traditional method, several subcomputer-generated holograms (sub-CGHs) with large size are generated in the proposed method. Through pixel separation, the recorded object is separated into multiple object point groups. The information of each object point group is recorded on different sub-CGHs with independent initial random phases. In the holographic reconstruction, three spatial light modulators (SLMs) in a planar configuration are used to load the sub-CGHs. The image is reconstructed through time multiplexing. The FOV is enlarged because the light distribution size of each image point is increased. Meanwhile, the speckle noise of the image is suppressed through the average effect and the separation of the adjacent image points. Experimental results prove the feasibility of the proposed method.

中文翻译：

基于时分复用的散斑噪声抑制大视场全息显示方法

在本文中，我们提出了一种在具有斑点噪声抑制的全息显示中扩大视场 (FOV) 的方法。与传统方法不同的是，该方法生成了几个大尺寸的子计算机生成全息图（sub-CGHs）。通过像素分离，将记录的对象分成多个对象点组。每个目标点组的信息记录在不同的子CGH上，具有独立的初始随机相位。在全息重建中，平面配置中的三个空间光调制器 (SLM) 用于加载 sub-CGH。图像通过时间复用重建。由于每个像点的光分布尺寸增加，FOV 被放大。同时，通过平均效应和相邻像点的分离来抑制图像的散斑噪声。实验结果证明了所提出方法的可行性。

更新日期：2021-06-02

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