中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

53 records (took 0.016 seconds)

    A METHOD AND SYSTEM FOR OBTAINING DIGITAL HOLOGRAMS IN A SINGLE CAMERA SHOT USING WHITE-LIGHT
    1.
    发明申请
    A METHOD AND SYSTEM FOR OBTAINING DIGITAL HOLOGRAMS IN A SINGLE CAMERA SHOT USING WHITE-LIGHT 审中-公开
    使用白光在单个摄像机中获得数字HOLOGRAMS的方法和系统

    公开(公告)号：WO2008096344A3

    公开(公告)日：2008-09-25

    申请号：PCT/IL2008000142

    申请日：2008-02-03

    Applicant: UNIV BEN GURION ,  ROSEN JOSEPH ,  SHAKED NATAN TZVI ,  STERN ADRIAN

    Inventor： ROSEN JOSEPH ,  SHAKED NATAN TZVI ,  STERN ADRIAN

    IPC: G03H1/08 ,  G03H1/02 ,  H04N13/00

    CPC classification number: G03H1/0808 ,  G03H2001/0022 ,  G03H2001/0088 ,  G03H2001/0816 ,  G03H2210/30 ,  G03H2210/42 ,  G03H2210/454 ,  G03H2223/19 ,  G03H2240/56

    Abstract: The present invention is a method and a system for obtaining a digital hologram of a three-dimensional (3-D) scene. The method is performed by illuminating the scene (10) with incoherent white-light, recording multiple projections of the 3-D scene, and finally, computer processing of the projections by the performance of a predetermined sequence of mathematical operations. The method and the system of the current invention are characterized in that a microlens array (MLA, 14) is used to create the multiple projections in an image plane (16) which is projected onto the imaging sensor of a camera (20). This allows the obtaining of all of the multiple projections in a single camera shot.

    Abstract translation: 本发明是用于获得三维（3-D）场景的数字全息图的方法和系统。 该方法通过用不相干的白光照亮场景（10），记录3-D场景的多个投影，最后通过执行预定的数学运算序列来计算投影的处理。 本发明的方法和系统的特征在于，使用微透镜阵列（MLA，14）在投影到相机（20）的成像传感器上的图像平面（16）中产生多个投影。 这允许在单个照相机拍摄中获得所有多个投影。

    COMPUTER GENERATED HOLOGRAM
    2.
    发明申请
    COMPUTER GENERATED HOLOGRAM 审中-公开
    计算机生成的HOLOGRAM

    公开(公告)号：WO2008070581A2

    公开(公告)日：2008-06-12

    申请号：PCT/US2007/086184

    申请日：2007-11-30

    Applicant: F. POSZAT HU, LLC ,  WILSON, Christopher, Paul ,  CAMERON, Colin, David

    Inventor： WILSON, Christopher, Paul ,  CAMERON, Colin, David

    IPC: G03H1/08 ,  G03H1/22

    CPC classification number: G03H1/0808 ,  G03H1/2294 ,  G03H2001/0421 ,  G03H2001/0825 ,  G03H2001/0833 ,  G03H2001/2271 ,  G03H2210/33 ,  G03H2210/454 ,  G03H2226/02 ,  G03H2226/05

    Abstract: A three dimensional display apparatus includes a diffraction panel for displaying a computer generated hologram and a look-up table. The look-up table includes a plurality of phase entries corresponding to a plurality of image points within a three dimensional image replay volume of the computer generated hologram. The apparatus further includes one or more processors configured to notionally divide the computer generated hologram into one or more hogels and to calculate diffraction fringe information for at least one of the hogels based on a selection of the phase entries.

    Abstract translation: 三维显示装置包括用于显示计算机生成的全息图的衍射面板和查找表。 查找表包括与计算机生成的全息图的三维图像重放体积内的多个图像点相对应的多个相位条目。 该装置还包括一个或多个处理器，其配置成将计算机产生的全息图概念地划分成一个或多个管腔，并且基于相位条目的选择来计算至少一个管芯的衍射条纹信息。

    METHOD AND DEVICE FOR COMPUTING COMPUTER-GENERATED VIDEO HOLOGRAMS
    4.
    发明申请
    METHOD AND DEVICE FOR COMPUTING COMPUTER-GENERATED VIDEO HOLOGRAMS 审中-公开
    用于计算机生成的视频HOLOGRAMS的方法和装置

    公开(公告)号：WO2006066906A1

    公开(公告)日：2006-06-29

    申请号：PCT/EP2005/013836

    申请日：2005-12-22

    Applicant: SEEREAL TECHNOLOGIES GMBH ,  SCHWERDTNER, Armin

    Inventor： SCHWERDTNER, Armin

    IPC: G03H1/08 ,  G03H1/22

    CPC classification number: G03H1/0808 ,  G03H1/0005 ,  G03H1/22 ,  G03H1/2294 ,  G03H1/268 ,  G03H1/32 ,  G03H2001/0088 ,  G03H2001/0816 ,  G03H2001/0858 ,  G03H2001/2236 ,  G03H2001/2242 ,  G03H2001/2263 ,  G03H2001/2271 ,  G03H2001/269 ,  G03H2001/303 ,  G03H2210/30 ,  G03H2210/33 ,  G03H2210/454 ,  G03H2222/34 ,  G03H2223/16 ,  G03H2225/35 ,  G03H2226/02 ,  G03H2226/05

    Abstract: The data defining an object to be holographically reconstructed (3D-S) is first arranged into a number of virtual section layers (Lm), each layer defining a two-dimensional object data sets (OSm), such that a video hologram data set (HS) can be calculated from some or all of these two-dimensional object data sets. The first step is to transform each two-dimensional object data set to a two-dimensional wave field distribution. This wave field distribution is calculated for a virtual observer window (OW) in a reference layer (RL) at a finite distance (Dm) from the section layer (Lm). Next, the calculated two-dimensional wave field distributions for the virtual observer window, for all two-dimensional object data sets of section layers, are added to define an aggregated observer window data set. Then, the aggregated observer window data set is transformed from the reference layer (RL) to the video hologram layer (HL), to generate the video hologram data set (HS) for the computer-generated video hologram.

    Abstract translation: 定义要被全息重建的对象（3D-S）的数据首先被布置成多个虚拟区段层（Lm），每层定义一个二维对象数据集（OSm），使得视频全息图数据集 HS）可以从这些二维对象数据集中的一些或全部计算。 第一步是将每个二维对象数据集转换为二维波场分布。 对于来自截面层（Lm）的有限距离（Dm）的参考层（RL）中的虚拟观察窗（OW）计算该波场分布。 接下来，添加用于虚拟观察者窗口的计算的二维波场分布，用于分段层的所有二维对象数据集，以定义聚合观察窗数据集。 然后，将聚合的观察者窗口数据集从参考层（RL）变换为视频全息图层（HL），以产生用于计算机生成的视频全息图的视频全息图数据组（HS）。

    METHOD FOR PRODUCING HOLOGRAMS
    7.
    发明申请
    METHOD FOR PRODUCING HOLOGRAMS 审中-公开
    生成全息图的过程

    公开(公告)号：WO2017198713A3

    公开(公告)日：2018-01-18

    申请号：PCT/EP2017061846

    申请日：2017-05-17

    Applicant: SEEREAL TECH S A

    Inventor： LEISTER NORBERT ,  HÄUSSLER RALF ,  FÜTTERER GERALD

    IPC: G03H1/08 ,  G03H1/22

    CPC classification number: G03H1/0808 ,  G03H1/16 ,  G03H1/2294 ,  G03H2001/0825 ,  G03H2001/0833 ,  G03H2001/2236 ,  G03H2001/2255 ,  G03H2210/452 ,  G03H2210/454 ,  G03H2210/46 ,  G06T2200/04 ,  G06T2207/10028 ,  G06T2207/20021 ,  G06T2207/20056

    Abstract: The invention relates to a method for producing holograms for encoding in a spatial light modulation device for a holographic display for displaying a two-dimensional and/or three-dimensional scene. The two-dimensional and/or three-dimensional scene is split into object points and is encoded in a hologram divided into sub-holograms in the spatial light modulation device. The object points of the scene are encoded in encoding regions on the spatial light modulation device. A size and/or a shape of the encoding region is selected in comparison with a size and/or a shape of a subhologram associated with the encoding region in such a way as to reduce crosstalk of higher orders of diffraction in a virtual visibility region.

    Abstract translation: 本发明涉及一种用于在用于全息显示器的空间光调制装置中编码用于显示二维和/或三维场景的用于编码的全息图的方法。 由此将二维和/或三维场景分解成目标点并且编码在空间光调制设备中的亚全息图细分全息图中。 场景的对象点被编码在空间光调制设备上的编码区域中。 与分配给编码区域的亚全息图的大小和/或形状相比，选择编码区域的大小和/或形状，使得来自虚拟可见性区域中的较高衍射级次的串扰减少。

    METHOD AND APPARATUS FOR ENCODING COMPUTER-GENERATED HOLOGRAMS IN PIXELATED LIGHT MODULATORS
    9.
    发明申请
    METHOD AND APPARATUS FOR ENCODING COMPUTER-GENERATED HOLOGRAMS IN PIXELATED LIGHT MODULATORS 审中-公开
    方法和装置产生的全息图的像素化的光调制器的编码计算机

    公开(公告)号：WO2008028837A3

    公开(公告)日：2009-05-07

    申请号：PCT/EP2007058883

    申请日：2007-08-27

    Applicant: SEEREAL TECHNOLOGIES SA ,  LEISTER NORBERT

    Inventor： LEISTER NORBERT

    IPC: G03H1/08 ,  G03H1/22

    CPC classification number: G03H1/2294 ,  G03H1/02 ,  G03H1/0808 ,  G03H2001/0224 ,  G03H2210/441 ,  G03H2210/454 ,  G03H2240/61

    Abstract: The object is to largely eliminate the errors which arise in the reconstruction of a hologram, calculated point by point, as a result of the encoding of said hologram into pixels of finite extent. The invention achieves the object by means of a method in which the common wavefront calculated from the object sectional planes (6, 7, 8) is multiplied by the inverse transform of the pixel shape and pixel transparency in the viewer's window (11) before the wavefront modified by the multiplication is transformed to the hologram plane (14) and encoded as an amplitude and/or phase distribution of the hologram in the pixels of the light modulator (9, 91). This method is implemented in a corresponding apparatus which contains an additional memory unit for providing a Fourier transform or its inverse Fourier transform and also a multiplication unit.

    Abstract translation: 的任务是消除点处计算的全息图到一个点的编码的发生是由于错误与在全息图在很大程度上重建有限程度的像素。 根据本发明，该目的是通过在由所述波前相乘之前修改的像素形状和像素透明度的从对象切割平面（6，7，8）来计算公共波前在观察者视窗（11）由所述逆乘以变换的方法来实现 全息图平面（14），并转化为振幅和/或在光调制器的像素的全息图的相位分布（9，91）进行编码。 此方法是在含有一个额外的存储器单元，用于提供一个傅立叶变换及其逆傅立叶变换相应的设备，和一个乘法单元实​​现。

    COMPUTER GENERATED HOLOGRAM
    10.
    发明申请
    COMPUTER GENERATED HOLOGRAM 审中-公开
    计算机生成的HOLOGRAM

    公开(公告)号：WO2008070581A3

    公开(公告)日：2008-11-20

    申请号：PCT/US2007086184

    申请日：2007-11-30

    Applicant: POSZAT HU LLC F ,  WILSON CHRISTOPHER PAUL ,  CAMERON COLIN DAVID

    Inventor： WILSON CHRISTOPHER PAUL ,  CAMERON COLIN DAVID

    IPC: G03H1/08

    CPC classification number: G03H1/0808 ,  G03H1/2294 ,  G03H2001/0421 ,  G03H2001/0825 ,  G03H2001/0833 ,  G03H2001/2271 ,  G03H2210/33 ,  G03H2210/454 ,  G03H2226/02 ,  G03H2226/05

    Abstract: A three dimensional display apparatus includes a diffraction panel (2) for displaying a computer generated hologram and means comprising a look-up table. The look-up table includes a plurality of phase entries corresponding to a plurality of image points within a three dimensional image replay volume (40) of the computer generated hologram. The apparatus further includes one or more processors configured to notionally divide the computer generated hologram into one' or more hogels and to calculate diffraction fringe information for at least one of the hogels based on a selection of the phase entries.

    Abstract translation: 三维显示装置包括用于显示计算机产生的全息图的衍射面板（2）和包括查找表的装置。 查找表包括与计算机生成的全息图的三维图像重放量（40）内的多个图像点相对应的多个相位条目。 该装置还包括一个或多个处理器，其配置成将计算机产生的全息图概念地划分为一个或多个管腔，并且基于相位条目的选择来计算至少一个管芯的衍射条纹信息。

Patent Agency Ranking