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    APPARATUS AND METHOD FOR DISPLAYING PSEUDO-HOLOGRAM IMAGE BASED ON PUPIL TRACKING
    1.
    发明申请
    APPARATUS AND METHOD FOR DISPLAYING PSEUDO-HOLOGRAM IMAGE BASED ON PUPIL TRACKING 审中-公开
    基于PUPIL跟踪显示PSOUDO-HOLOGRAM图像的装置和方法

    公开(公告)号：US20150138613A1

    公开(公告)日：2015-05-21

    申请号：US14533608

    申请日：2014-11-05

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Hyon Gon CHOO ,  Kyung Ae MOON ,  Min Sik PARK ,  Hyun Eui KIM ,  Jin Woong KIM

    IPC: G03H1/08 ,  G03H1/22

    CPC classification number: G02B27/0093 ,  G02B27/2271

    Abstract: Provided are an apparatus and a method for displaying a hologram image based on pupil tracking, wherein a hologram image display apparatus includes a location determiner to determine a location of a user using a captured image of the user and a hologram information reconstructor to reconstruct first hologram information as second hologram information optimized for the location of the user to reproduce the hologram image.

    Abstract translation: 提供了一种基于瞳孔跟踪显示全息图像的装置和方法，其中全息图像显示装置包括位置确定器，用于使用用户的拍摄图像确定用户的位置，以及全息图信息重建器来重建第一全息图 信息作为用于再现全息图像的用户的位置而被优化的第二全息图信息。

    APPARATUS AND METHOD FOR GENERATING DIGITAL HOLOGRAM
    2.
    发明申请
    APPARATUS AND METHOD FOR GENERATING DIGITAL HOLOGRAM 审中-公开
    用于产生数字HOLOGRAM的装置和方法

    公开(公告)号：US20140211286A1

    公开(公告)日：2014-07-31

    申请号：US14166786

    申请日：2014-01-28

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Je Ho NAM ,  Eun Young CHANG ,  Min Sik PARK

    IPC: G03H1/08

    CPC classification number: G03H1/0808 ,  G03H2001/0825 ,  G03H2210/33 ,  G03H2210/42 ,  G03H2210/441 ,  G03H2210/45

    Abstract: Disclosed are an apparatus and a method for generating a digital hologram for reproducing a 3D stereoscopic image, and more particularly, an apparatus and a method for generating a digital hologram, which generate the digital hologram by receiving a depth information pre-processing process of generating first depth map information constituted by a first depth level and second depth map information constituted a second depth level by receiving color image information from an imaging unit.

    Abstract translation: 公开了一种用于生成用于再现3D立体图像的数字全息图的装置和方法，更具体地，涉及一种用于生成数字全息图的装置和方法，其通过接收生成数字全息图的深度信息预处理过程来产生数字全息图 通过从成像单元接收彩色图像信息，由第一深度级和第二深度图信息构成的第一深度图信息构成第二深度级。

    METHOD AND APPARATUS FOR COMPRESSING HOLOGRAM
    6.
    发明公开
    METHOD AND APPARATUS FOR COMPRESSING HOLOGRAM 审中-公开

    公开(公告)号：US20240353796A1

    公开(公告)日：2024-10-24

    申请号：US18638918

    申请日：2024-04-18

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Min Sik PARK ,  Joong Ki PARK

    IPC: G03H1/16 ,  G03H1/08 ,  H04N19/61 ,  H04N19/70

    CPC classification number: G03H1/16 ,  G03H1/0808 ,  H04N19/61 ,  H04N19/70 ,  G03H2225/32

    Abstract: A method and apparatus for compressing hologram is disclosed. The apparatus includes memory to store one or more instructions, and one or more processors to execute the one or more instructions in the memory, wherein the one or more processors perform generating phase wavefront blocks using a frame of a phase-only hologram, generating a first prediction wavefront block using one of the phase wavefront blocks, generating a differential wavefront block using a phase wavefront block and the first prediction wavefront block, transforming and quantizing the differential wavefront block, generating a restored differential wavefront block by inversely quantizing and inversely transforming the differential wavefront block transformed and quantized, generating a restored phase wavefront block using the restored differential wavefront block, generating a restored phase wavefront using restored phase wavefront blocks generated using the restored differential wavefront blocks, and restoring the phase-only hologram using the restored phase wavefront.

    DIGITAL HOLOGRAPHIC DISPLAY METHOD AND APPARATUS
    8.
    发明申请
    DIGITAL HOLOGRAPHIC DISPLAY METHOD AND APPARATUS 审中-公开
    数字全息显示方法和装置

    公开(公告)号：US20150234350A1

    公开(公告)日：2015-08-20

    申请号：US14577146

    申请日：2014-12-19

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Min Sik PARK ,  Hyun Eui KIM ,  Byung Gyu CHAE ,  Hyon Gon CHOO ,  Kyung Ae MOON ,  Jin Woong KIM

    IPC: G03H1/22 ,  G03H1/26

    CPC classification number: G03H1/2294 ,  G03H1/2205 ,  G03H2001/221 ,  G03H2001/2236 ,  G03H2001/2239 ,  G03H2001/2242 ,  G03H2001/2297 ,  G03H2222/36 ,  G03H2223/24

    Abstract: The present invention proposes a digital holographic display apparatus including a light generating unit configured to generate coherent light, a spatial light modulator configured to reproduce 3-dimensional hologram images on a space by modulating the coherent light, a vertical viewing angle magnifying unit configured to expand a vertical viewing angle by vertically steering a beam that forms the hologram images through a first mirror, a horizontal viewing angle magnifying unit configured to expand a horizontal viewing angle by steering the beam to top of a table through a second mirror, and a control unit configured to control the special light modulator, the vertical viewing angle magnifying unit and the horizontal viewing angle magnifying unit in order the hologram images to be formed on an observation space for hologram. Accordingly, by expanding the horizontal and vertical viewing angles of hologram images, an observer may observe the hologram images more comfortably.

    Abstract translation: 本发明提出了一种数字全息显示装置，包括：被配置为产生相干光的光产生单元，配置为通过调制相干光在空间上再现3维全息图像的空间光调制器;垂直视角放大单元， 通过垂直转向通过第一反射镜形成全息图像的光束的垂直视角;水平视角放大单元，被配置为通过使第二反射镜将光束转向桌子顶部来扩大水平视角;以及控制单元 被配置为控制特殊光调制器，垂直视角放大单元和水平视角放大单元，以便在全息图的观察空间上形成全息图。 因此，通过扩大全息图像的水平和垂直视角，观察者可以更舒适地观察全息图像。

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