Method and device for encoding and reconstructing computer-generated video holograms
    1.
    发明授权
    Method and device for encoding and reconstructing computer-generated video holograms 有权
    用于编码和重建计算机生成的视频全息图的方法和装置

    公开(公告)号:US07643189B2

    公开(公告)日:2010-01-05

    申请号:US12111440

    申请日:2008-04-29

    IPC分类号: G03H1/26 G02B27/22

    摘要: A method and a device for encoding and reconstructing computer-generated video holograms using a conventional LC display: it provides holographic reconstruction of three-dimensional scenes using electronically controllable pixel in a holographic array (3) with a conventional resolution, and is reasonably free from flickering and cross-talk. Reconstruction is in real time, and for both eyes at the same time, over a large viewing zone. The method takes advantage of an optical focusing means (2) in order to image vertically coherent light emitted by a line light source (1) into viewing windows (8R, 8L) after modulation by the pixel array (3). The holographic reconstruction (11) of the scene is rendered visible from viewing windows (8R, 8L) for both eyes of an observer by way of diffraction at the pixels. According to the invention, the controllable pixels are disposed in vertical pixel columns (15, 16), which encode separate holograms of the same scene for each of the viewer's eyes (R, L), where said holograms are one-dimensional in the vertical direction and horizontally interleaved. An image separation means (7) with separating elements arranged parallel to the pixel columns reveals the respective pixel columns (15, 15′ or 16, 16′) for one eye and covers them for the other eye.

    摘要翻译: 一种用于使用常规LC显示器对计算机生成的视频全息图进行编码和重建的方法和装置:它使用具有常规分辨率的全息阵列(3)中的电子可控像素提供三维场景的全息重构, 闪烁和串扰。 重建是实时的,双眼同时在一个大观景区。 该方法利用光学聚焦装置(2),以便在由像素阵列(3)调制之后,将由线光源(1)发射的垂直相干光成像到观察窗(8R,8L)中。 通过在像素处的衍射,场景的全息重建(11)从观察窗(8R,8L)对于观察者的双眼可见。 根据本发明,可控像素被布置在垂直像素列(15,16)中,其对于每个观看者的眼睛(R,L)编码相同场景的分离全息图,其中所述全息图在垂直方向上是一维的 方向和水平交错。 具有与像素列平行布置的分离元件的图像分离装置(7)显示用于一只眼睛的各个像素列(15,15'或16,16'),并且覆盖另一只眼睛。

    Device for holographic reconstruction of three-dimensional scenes
    2.
    发明申请
    Device for holographic reconstruction of three-dimensional scenes 有权
    三维场景全息重建装置

    公开(公告)号:US20060250671A1

    公开(公告)日:2006-11-09

    申请号:US11418946

    申请日:2006-05-05

    IPC分类号: G03H1/08

    摘要: A device for holographic reconstruction of three-dimensional scenes includes optical focusing means which directs sufficiently coherent light from light means to the eyes of at least one observer via a spatial light modulator that is encoded with holographic information. The device has a plurality of illumination units for illuminating the surface of the spatial light modulator (SLM); each unit comprises a focusing element (21/22/23 or 24), and a light means (LS1/LS2/LS3 or LS4) that emits sufficiently coherent light such that each of these illumination units illuminates one separate illuminated region (R1/R2/R3 or R4) of the surface, whereby the focusing element and the light means are arranged such that the light emitted by the light means (LS1-LS4) coincides close to or at the observer eyes.

    摘要翻译: 用于三维场景的全息重建的装置包括光学聚焦装置,其通过用全息信息编码的空间光调制器将来自光装置的足够相干的光引导至至少一个观察者的眼睛。 该装置具有用于照射空间光调制器(SLM)的表面的多个照明单元; 每个单元包括聚焦元件(21/22/23或24),以及光装置(LS< 1> / 2< 2> 或LS 3 4),其发射足够相干的光,使得这些照明单元中的每一个照射表面的一个单独的照明区域(R 1 / R 2 / R 3或R 4),由此聚焦元件和 光装置被布置成使得由光装置发射的光(LS 1-SUB 4)在观察者眼睛附近或在观察者眼睛处重合。

    Device for holographic reconstruction of three-dimensional scenes
    4.
    发明授权
    Device for holographic reconstruction of three-dimensional scenes 有权
    三维场景全息重建装置

    公开(公告)号:US07535607B2

    公开(公告)日:2009-05-19

    申请号:US11418946

    申请日:2006-05-05

    IPC分类号: G03H1/08 G02B5/32

    摘要: A device for holographic reconstruction of three-dimensional scenes includes optical focusing means which directs sufficiently coherent light from light means to the eyes of at least one observer via a spatial light modulator that is encoded with holographic information. The device has a plurality of illumination units for illuminating the surface of the spatial light modulator (SLM); each unit comprises a focusing element (21/22/23 or 24), and a light means (LS1/LS2/LS3 or LS4) that emits sufficiently coherent light such that each of these illumination units illuminates one separate illuminated region (R1/R2/R3 or R4) of the surface, whereby the focusing element and the light means are arranged such that the light emitted by the light means (LS1-LS4) coincides close to or at the observer eyes.

    摘要翻译: 用于三维场景的全息重建的装置包括光学聚焦装置,其通过用全息信息编码的空间光调制器将来自光装置的足够相干的光引导至至少一个观察者的眼睛。 该装置具有用于照射空间光调制器(SLM)的表面的多个照明单元; 每个单元包括聚焦元件(21/22/23或24)和发出足够相干光的光装置(LS1 / LS2 / LS3或LS4),使得这些照明单元中的每一个照亮一个单独的照明区域(R1 / R2 / R3或R4),由此聚焦元件和光装置被布置成使得由光装置(LS1-LS4)发射的光在观察者眼睛附近或在观察者眼睛处重合。

    Method and Device for Encoding and Reconstructing Computer-Generated Video Holograms
    7.
    发明申请
    Method and Device for Encoding and Reconstructing Computer-Generated Video Holograms 有权
    用于编码和重建计算机生成的视频全息图的方法和装置

    公开(公告)号:US20080198430A1

    公开(公告)日:2008-08-21

    申请号:US12111440

    申请日:2008-04-29

    IPC分类号: G03H1/26

    摘要: A method and a device for encoding and reconstructing computer-generated video holograms using a conventional LC display: it provides holographic reconstruction of three-dimensional scenes using electronically controllable pixel in a holographic array (3) with a conventional resolution, and is reasonably free from flickering and cross-talk. Reconstruction is in real time, and for both eyes at the same time, over a large viewing zone. The method takes advantage of an optical focusing means (2) in order to image vertically coherent light emitted by a line light source (1) into viewing windows (8R, 8L) after modulation by the pixel array (3). The holographic reconstruction (11) of the scene is rendered visible from viewing windows (8R, 8L) for both eyes of an observer by way of diffraction at the pixels. According to the invention, the controllable pixels are disposed in vertical pixel columns (15, 16), which encode separate holograms of the same scene for each of the viewer's eyes (R, L), where said holograms are one-dimensional in the vertical direction and horizontally interleaved. An image separation means (7) with separating elements arranged parallel to the pixel columns reveals the respective pixel columns (15, 15′ or 16, 16′) for one eye and covers them for the other eye.

    摘要翻译: 一种用于使用常规LC显示器对计算机生成的视频全息图进行编码和重建的方法和装置:它使用具有常规分辨率的全息阵列(3)中的电子可控像素提供三维场景的全息重构, 闪烁和串扰。 重建是实时的,双眼同时在一个大观景区。 该方法利用光学聚焦装置(2),以便在由像素阵列(3)调制之后,将由线光源(1)发射的垂直相干光成像到观察窗(8 R,8 L)中。 通过像素处的衍射,场景的全息重建(11)从观察窗(8 R,8 L)对于观察者的双眼可见。 根据本发明,可控像素被布置在垂直像素列(15,16)中,其对于每个观看者的眼睛(R,L)编码相同场景的分离全息图,其中所述全息图在垂直方向上是一维的 方向和水平交错。 具有与像素列平行布置的分离元件的图像分离装置(7)显示用于一只眼睛的各个像素列(15,15'或16,16'),并且覆盖另一只眼睛。

    Method for encoding video holograms for holographically reconstructing a scene
    8.
    发明授权
    Method for encoding video holograms for holographically reconstructing a scene 有权
    用于全息重建场景的视频全息图的编码方法

    公开(公告)号:US07400431B2

    公开(公告)日:2008-07-15

    申请号:US11222277

    申请日:2005-09-08

    IPC分类号: G03H1/26 G02B27/22

    摘要: A method and a device for encoding and reconstructing computer-generated video holograms using a conventional LC display: it provides holographic reconstruction of three-dimensional scenes using electronically controllable pixel in a holographic array (3) with a conventional resolution, and is reasonably free from flickering and cross-talk. Reconstruction is in real time, and for both eyes at the same time, over a large viewing zone. The method takes advantage of an optical focusing means (2) in order to image vertically coherent light emitted by a line light source (1) into viewing windows (8R, 8L) after modulation by the pixel array (3). The holographic reconstruction (11) of the scene is rendered visible from viewing windows (8R, 8L) for both eyes of an observer by way of diffraction at the pixels. According to the invention, the controllable pixels are disposed in vertical pixel columns (15, 16), which encode separate holograms of the same scene for each of the viewer's eyes (R, L), where said holograms are one-dimensional in the vertical direction and horizontally interleaved. An image separation means (7) with separating elements arranged parallel to the pixel columns reveals the respective pixel columns (15, 15′ or 16, 16′) for one eye and covers them for the other eye.

    摘要翻译: 一种用于使用常规LC显示器对计算机生成的视频全息图进行编码和重建的方法和装置:它使用具有常规分辨率的全息阵列(3)中的电子可控像素提供三维场景的全息重构, 闪烁和串扰。 重建是实时的,双眼同时在一个大观景区。 该方法利用光学聚焦装置(2),以便在由像素阵列(3)调制之后,将由线光源(1)发射的垂直相干光成像到观察窗(8 R,8 L)中。 通过像素处的衍射,场景的全息重建(11)从观察窗(8 R,8 L)对于观察者的双眼可见。 根据本发明,可控像素被布置在垂直像素列(15,16)中,其对于每个观看者的眼睛(R,L)编码相同场景的分离全息图,其中所述全息图在垂直方向上是一维的 方向和水平交错。 具有与像素列平行布置的分离元件的图像分离装置(7)显示用于一只眼睛的各个像素列(15,15'或16,16'),并且覆盖另一只眼睛。

    Method of computing a hologram
    9.
    发明申请
    Method of computing a hologram 有权
    计算全息图的方法

    公开(公告)号:US20060139711A1

    公开(公告)日:2006-06-29

    申请号:US11313989

    申请日:2005-12-21

    IPC分类号: G03H1/08

    摘要: A method of computing a hologram by determining the wavefronts at the approximate observer eye position that would be generated by a real version of an object to be reconstructed. In normal computer generated holograms, one determines the wavefronts needed to reconstruct an object; this is not done directly in the present invention. Instead, one determines the wavefronts at an observer window that would be generated by a real object located at the same position of the reconstructed object. One can then back-transforms these wavefronts to the hologram to determine how the hologram needs to be encoded to generate these wavefronts. A suitably encoded hologram can then generate a reconstruction of the three-dimensional scene that can be observed by placing one's eyes at the plane of the observer window and looking through the observer window.

    摘要翻译: 通过确定由将要重建的对象的实际版本产生的近似观察者眼睛位置处的波前来计算全息图的方法。 在正常计算机生成的全息图中,一个确定重建物体所需的波前; 这不是直接在本发明中完成的。 相反,一个确定将由位于重建对象的相同位置处的真实对象生成的观察者窗口处的波前。 然后可以将这些波前反向变换为全息图,以确定如何对全息图进行编码以产生这些波前。 然后,适当地编码的全息图可以生成可以通过将人的眼睛放置在观察者窗口的平面上并通过观察者窗口观察来观察的三维场景的重建。

    Method and device for encoding and reconstructing computer-generated video holograms
    10.
    发明申请
    Method and device for encoding and reconstructing computer-generated video holograms 有权
    用于编码和重建计算机生成的视频全息图的方法和装置

    公开(公告)号:US20060050340A1

    公开(公告)日:2006-03-09

    申请号:US11222277

    申请日:2005-09-08

    IPC分类号: G02B27/22 G02B5/32

    摘要: A method and a device for encoding and reconstructing computer-generated video holograms using a conventional LC display: it provides holographic reconstruction of three-dimensional scenes using electronically controllable pixel in a holographic array (3) with a conventional resolution, and is reasonably free from flickering and cross-talk. Reconstruction is in real time, and for both eyes at the same time, over a large viewing zone. The method takes advantage of an optical focusing means (2) in order to image vertically coherent light emitted by a line light source (1) into viewing windows (8R, 8L) after modulation by the pixel array (3). The holographic reconstruction (11) of the scene is rendered visible from viewing windows (8R, 8L) for both eyes of an observer by way of diffraction at the pixels. According to the invention, the controllable pixels are disposed in vertical pixel columns (15, 16), which encode separate holograms of the same scene for each of the viewer's eyes (R, L), where said holograms are one-dimensional in the vertical direction and horizontally interleaved. An image separation means (7) with separating elements arranged parallel to the pixel columns reveals the respective pixel columns (15, 15′ or 16, 16′) for one eye and covers them for the other eye.

    摘要翻译: 一种用于使用常规LC显示器对计算机生成的视频全息图进行编码和重建的方法和装置:它使用具有常规分辨率的全息阵列(3)中的电子可控像素提供三维场景的全息重构, 闪烁和串扰。 重建是实时的,双眼同时在一个大观景区。 该方法利用光学聚焦装置(2),以便在由像素阵列(3)调制之后,将由线光源(1)发射的垂直相干光成像到观察窗(8 R,8 L)中。 通过像素处的衍射,场景的全息重建(11)从观察窗(8 R,8 L)对于观察者的双眼可见。 根据本发明,可控像素被布置在垂直像素列(15,16)中,其对于每个观看者的眼睛(R,L)编码相同场景的分离全息图,其中所述全息图在垂直方向上是一维的 方向和水平交错。 具有与像素列平行布置的分离元件的图像分离装置(7)显示用于一只眼睛的各个像素列(15,15'或16,16'),并且覆盖另一只眼睛。