公开(公告)号：US20140313555A1

公开(公告)日：2014-10-23

申请号：US14222059

申请日：2014-03-21

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung Taik OH ,  Ho Yong SEO ,  Wook Ho SON

IPC: G03H1/08

CPC classification number: G03H1/0808

Abstract: Provided are a digital hologram synthesis method and apparatus based on an angular spectrum. The digital hologram synthesis method includes representing an input digital hologram as at least one angular spectrum region by applying Fourier transformation to the input digital hologram, registering the at least one angular spectrum region by projecting the at least one angular spectrum region onto a spherical surface, and generating a synthesis digital hologram based on the registered at least one angular spectrum region. Accordingly, it is possible to generate a new digital hologram with a different orientation or at a different distance using an angular spectrum of a digital hologram generated in advance, without geometric information of an object. In addition, it is possible to readily and intuitively synthesize a new digital hologram while viewing an image visualized in a 3D space.

Abstract translation: 提供了一种基于角谱的数字全息图合成方法和装置。 数字全息图合成方法包括：通过对输入的数字全息图应用傅里叶变换，将输入的数字全息图表示为至少一个角度谱区域，通过将至少一个角度光谱区域投影到球面上来登记该至少一个角度光谱区域， 以及基于所登记的至少一个角频谱区域生成合成数字全息图。 因此，可以使用预先生成的数字全息图的角度谱，而不用对象的几何信息来生成具有不同取向或不同距离的新的数字全息图。 此外，可以在观看在3D空间中可视化的图像的同时容易且直观地合成新的数字全息图。

公开(公告)号：US20140085692A1

公开(公告)日：2014-03-27

申请号：US14036642

申请日：2013-09-25

Applicant: Electronics and Telecommunications Research Institute

Inventor： Beom Ryeol LEE ,  Wook Ho SON ,  Seung Taik OH ,  Ho Yong SEO ,  Chi Young HWANG

IPC: G03H1/22

CPC classification number: G03H1/2202 ,  G03H1/0808 ,  G03H2001/0816 ,  G03H2210/30

Abstract: A hologram data processing method using a hologram fringe data format adaptive to a data encoding scheme includes configuring model data of a three-dimensional (3D) object corresponding to source data to be used for generating a hologram, computing hologram fringe data by applying a diffraction transform to a light wave transferred to a hologram plane based on the model data of the 3D object, setting, in the computed hologram fringe data, the hologram fringe data format adaptive to a data encoding scheme for reconstructing the hologram, reconstructing an optical hologram by applying the data encoding scheme to the hologram fringe data, and adjusting the optical hologram by comparing a reconstructed image of the optical hologram to a reconstructed image of a numerical hologram.

Abstract translation: 使用适于数据编码方案的全息图条纹数据格式的全息图数据处理方法包括配置与用于产生全息图的源数据相对应的三维（3D）对象的模型数据，通过应用衍射计算全息图条纹数据 转换为基于3D对象的模型数据传输到全息图平面的光波，在所计算的全息图条纹数据中设置自适应于用于重建全息图的数据编码方案的全息图条纹数据格式，通过以下步骤重建光学全息图： 将数据编码方案应用于全息图条纹数据，并通过将光学全息图的重建图像与数字全息图的重建图像进行比较来调整光学全息图。