公开(公告)号：US06710903B2

公开(公告)日：2004-03-23

申请号：US10084315

申请日：2002-02-28

申请人： Shigeyuki Baba ,  Akira Shirakura ,  Nobuhiro Kihara

发明人： Shigeyuki Baba ,  Akira Shirakura ,  Nobuhiro Kihara

IPC分类号： G03H126

CPC分类号： G03H1/268 ,  G03H2001/2685 ,  G03H2001/2695 ,  G03H2210/454

摘要： In a system in which images having parallax data, and which are made up of plural images containing the parallax information, are processed with viewing point conversion, and the resulting new images having parallax data are used, as in a system of generating a holographic stereogram, a unit for generating the images having parallax data is to be independent from other unit or units. To this end, the information necessary to perform viewing point conversion processing of converting the viewing point for an object is attached to images having parallax data when the images having parallax data have been produced. When the images having parallax data is exchanged between the unit for generating the images having parallax data and other unit or units, the exchanged images having parallax data need to be those to which the information has been attached.

摘要翻译： 在具有视差信息的图像并且由包含视差信息的多个图像组成的图像的视频数据转换处理的系统中，使用具有视差信息的所得到的新图像，如在生成全息立体图的系统中 用于产生具有视差数据的图像的单元将独立于其它单元。 为此，当产生具有视差数据的图像时，将进行用于转换对象的观察点的观察点转换处理所必需的信息附加到具有视差数据的图像。 当在用于生成具有视差数据的图像的单元和其他单元或单元之间交换具有视差数据的图像时，具有视差数据的交换图像需要是附加了该信息的图像。

公开(公告)号：US5949559A

公开(公告)日：1999-09-07

申请号：US882272

申请日：1997-06-25

申请人： Nobuhiro Kihara ,  Akira Shirakura ,  Shigeyuki Baba

发明人： Nobuhiro Kihara ,  Akira Shirakura ,  Shigeyuki Baba

IPC分类号： G03H1/04 ,  G03H1/26

CPC分类号： G03H1/02 ,  G03H1/268 ,  G03H2001/0216 ,  G03H2001/2685 ,  G03H2223/14

摘要： A method and an apparatus for creating a holographic stereogram are provided for canceling noises localized to infinity and offering a high-quality hologram. The creating method is executed to display an image corresponding to a coordinate location on the hologram recording medium on the display unit, condense the laser beam transmitted through the display unit as an object beam at the coordinate location of the hologram recording medium, and apply part of the laser beam before transmission through the display unit as a reference beam onto the hologram recording medium, for sequentially forming stripped or dotted holographic elements on the hologram recording medium. The creating apparatus includes a first diffuser panel located close to the display unit, a mask, and a second diffuser panel, the latter two of which are located immediately before the hologram recording medium. The mask has an opening corresponding to the width of the holographic element. The second diffuser panel serves to one-dimensionally diffuse the object beam transmitted through the opening of the mask. The first diffuser panel is relocated at the exposure of each holographic element.

摘要翻译： 提供了一种用于产生全息立体图的方法和装置，用于消除局部于无限远的噪声并提供高质量的全息图。 执行创建方法以在显示单元上显示与全息图记录介质上的坐标位置相对应的图像，在全息图记录介质的坐标位置将通过显示单元传输的激光束作为对象光束进行冷凝，并施加部分 在作为参考光束通过显示单元透射到全息图记录介质上之前的激光束，用于在全息图记录介质上依次形成剥离或点状的全息元件。 该创建装置包括位于显示单元附近的第一扩散板，掩模和第二扩散板，其后两个位于紧邻全息图记录介质之前。 掩模具有对应于全息元件的宽度的开口。 第二扩散板用于一维地扩散透过掩模开口的物体光束。 第一扩散板在每个全息元件的曝光时重新定位。

公开(公告)号：US06614467B1

公开(公告)日：2003-09-02

申请号：US09386195

申请日：1999-08-30

申请人： Shigeyuki Baba ,  Akira Shirakura ,  Nobuhiro Kihara

发明人： Shigeyuki Baba ,  Akira Shirakura ,  Nobuhiro Kihara

IPC分类号： H04N1300

CPC分类号： G03H1/268 ,  G03H2210/441 ,  G03H2210/54

摘要： In generating a parallax image string used for generating a holographic stereogram, the image quality of a stereoscopic image generated from the parallax image string is to be maintained as the time needed in imaging the parallax image string is shortened. To this end, an optimum number of image frames of each of plural parallax image strings are photographed in agreement with the localized position of the reproduced image of a generated holographic stereogram. The image processing is executed for equating the numbers of frame images of the parallax image strings. The parallax image strings having the equal number of the frame images of the parallax image strings are synthesized by, for example, chroma key synthesis to generate a new parallax image string.

摘要翻译： 在生成用于产生全息立体图的视差图像串时，由视差图像串产生的立体图像的图像质量将被维持，因为缩小了视差图像串的成像所需的时间。 为此，与生成的全息立体图的再现图像的定位位置一致地拍摄多个视差图像串中的每一个的最佳数量的图像帧。 执行图像处理以使视差图像串的帧图像的数量相等。 具有相等数量的视差图像串的帧图像的视差图像串通过例如色度密钥合成来合成，以产生新的视差图像串。

公开(公告)号：US06377371B1

公开(公告)日：2002-04-23

申请号：US09359656

申请日：1999-07-26

申请人： Shigeyuki Baba ,  Akira Shirakura ,  Nobuhiro Kihara

发明人： Shigeyuki Baba ,  Akira Shirakura ,  Nobuhiro Kihara

IPC分类号： G03H126

CPC分类号： G03H1/268 ,  G03H2001/2685 ,  G03H2001/2695 ,  G03H2210/454

摘要： In a system in which images having parallax data, and which are made up of plural images containing the parallax information are processed with viewing point conversion, and the resulting new images having parallax data are used, as in a system of generating a holographic stereogram, a unit for generating the images having parallax data is to be independent from other unit or units. To this end, the information necessary to perform viewing point conversion processing of converting the viewing point for an object is attached to images having parallax data when the images having parallax data have been produced. When the images having parallax data is exchanged between the unit for generating the images having parallax data and other unit or units, the exchanged images having parallax data need to be those to which the information has been attached.

摘要翻译： 在具有视差信息的图像并且由包含视差信息的多个图像构成的图像由视点转换处理的系统中，并且使用所得到的具有视差数据的新图像，如在产生全息立体图的系统中， 用于产生具有视差数据的图像的单元将独立于其它单元。 为此，当产生具有视差数据的图像时，将进行用于转换对象的观察点的观察点转换处理所必需的信息附加到具有视差数据的图像。 当在用于生成具有视差数据的图像的单元和其他单元或单元之间交换具有视差数据的图像时，具有视差数据的交换图像需要是附加了该信息的图像。

公开(公告)号：US6018403A

公开(公告)日：2000-01-25

申请号：US37684

申请日：1998-03-10

申请人： Akira Shirakura ,  Nobuhiro Kihara ,  Shigeyuki Baba

发明人： Akira Shirakura ,  Nobuhiro Kihara ,  Shigeyuki Baba

IPC分类号： G03H1/26 ,  G03H1/22

CPC分类号： G03H1/0408 ,  G03H1/22 ,  G03H1/182 ,  G03H2001/0216 ,  G03H2001/0413 ,  G03H2001/0415 ,  G03H2001/0419 ,  G03H2001/0426 ,  G03H2001/2228 ,  G03H2001/2234 ,  G03H2001/2239 ,  G03H2001/2271 ,  G03H2001/2685 ,  G03H2001/2695 ,  G03H2222/12 ,  G03H2223/12 ,  G03H2223/16 ,  G03H2223/18 ,  G03H2223/25 ,  G03H2227/06 ,  G03H2240/50 ,  G03H2250/33 ,  G03H2260/12 ,  G03H2270/21 ,  G03H2270/23

摘要： An image reproducing method and apparatus whereby an image with a wide angle of visibility can be reproduced from a holographic stereogram in a manner less susceptible to blurring. For reproducing an image from a holographic stereogram 80 of an edge lit system, a holographic stereogram 80 is arranged on a lateral side of a cylindrically-shaped light-introducing block 81 and a reproducing illuminating light beam 82 is illuminated on the holographic stereogram 80 via the light-introducing block 81. A reproduced image 85 is produced by a diffracted light beam obtained on diffraction of the reproducing illuminating light beam 82 transmitted through the holographic stereogram 80.

摘要翻译： 可以以不易模糊的方式从全息立体图再现具有广视角的图像的图像再现方法和装置。 为了从边缘照明系统的全息立体图80再现图像，全息立体图80布置在圆柱形导光块81的横向侧上，并且再现照明光束82通过全息立体图80经由 光引入块81.再现图像85由通过全息立体图80透射的再现照明光束82的衍射获得的衍射光束产生。

公开(公告)号：US20120002257A1

公开(公告)日：2012-01-05

申请号：US13153968

申请日：2011-06-06

申请人： Akira Shirakura ,  Teruaki Higashihara ,  Toshiyuki Arai ,  Shigeyuki Baba

发明人： Akira Shirakura ,  Teruaki Higashihara ,  Toshiyuki Arai ,  Shigeyuki Baba

IPC分类号： G03H1/26 ,  G03H1/24 ,  G03H1/22

CPC分类号： G03H1/265 ,  G03H2001/2223 ,  G03H2210/53 ,  G03H2222/46 ,  G03H2223/14

摘要： A hologram recording medium having two or more images recorded therein, wherein when substantially collimated light is incident along a first direction on the hologram recording medium, a first image is reproduced with the intensity of light diffracted in the hologram recording medium maximized in a predetermined direction, when substantially collimated light is incident along a second direction on the hologram recording medium, a second image is reproduced with the intensity of light diffracted in the hologram recording medium maximized in the predetermined direction, and a full width at half maximum of a reproduction angle of at least either of the diffracted light intensities of the first and second images is 8° or smaller.

摘要翻译： 一种其中记录有两个或更多个图像的全息图记录介质，其中当基本上准直的光沿着全息图记录介质上的第一方向入射时，第一图像被再现，其中在全息图记录介质中衍射的光的强度在预定方向上最大化 当基本上准直的光沿着全息图记录介质上的第二方向入射时，以预定方向最大化的全息图记录介质中衍射的光的强度再现第二图像，并且再现角度的最大值为全宽 所述第一和第二图像的衍射光强度中的至少一个是8°或更小。

公开(公告)号：US07576899B2

公开(公告)日：2009-08-18

申请号：US11276527

申请日：2006-03-03

申请人： Tomoki Kanesaka ,  Nobuhiro Kihara ,  Shigeyuki Baba ,  Hisayuki Yamatsu ,  Megumi Ezura

发明人： Tomoki Kanesaka ,  Nobuhiro Kihara ,  Shigeyuki Baba ,  Hisayuki Yamatsu ,  Megumi Ezura

IPC分类号： G02B5/32

CPC分类号： G11C13/042 ,  G03H1/16 ,  G03H2225/55 ,  G11B7/0065 ,  G11B7/00781 ,  G11B7/1392

摘要： A hologram recording device for recording interference fringes between reference light and signal light modulated by data displayed in a spatial modulator in a hologram recording material, the hologram recording device including a phase mask for diffusing light, the phase mask being disposed in an optical system that the signal light passes, wherein a minimum unit of a light diffusing pattern formed in the phase mask is a natural number of times a minimum unit of display data of the spatial modulator.

摘要翻译： 一种全息记录装置，用于记录参考光和由全息图记录材料中的空间调制器中显示的数据调制的信号光之间的干涉条纹，所述全息图记录装置包括用于漫射光的相位掩模，所述相位掩模设置在光学系统中， 信号光通过，其中形成在相位掩模中的光漫射图案的最小单位是空间调制器的显示数据的最小单位的自然次数。

公开(公告)号：US07417776B2

公开(公告)日：2008-08-26

申请号：US11049725

申请日：2005-02-04

申请人： Shigeyuki Baba ,  Nobuhiro Kihara

发明人： Shigeyuki Baba ,  Nobuhiro Kihara

IPC分类号： G03H1/08

CPC分类号： G11B7/24088 ,  G11B7/0065 ,  G11B20/1496

摘要： A method and apparatus is disclosed which can reproduce multi-value data with high reproducibility from a hologram recording medium having data recorded in multi-values therein and can reduce the error rate of reproduction data. A reference gradation pattern is recorded in a medium, and luminance unevenness of a gradation pattern obtained by reproducing the gradation pattern is corrected. A gamma characteristic of the medium is determined based on the reproduction gradation pattern, and a modulation pattern produced using easily separable luminance values determined based on the gamma characteristic is displayed on a spatial light modulator to record data in multi-values into the medium. Thereupon, the data are oversampled and recorded, and a block of the reproduced data is decoded depending upon a sequence of relative luminance levels of pixels in the block to decode the entire reproduced multi-value data.

摘要翻译： 公开了一种方法和装置，其可以从具有以多值记录的数据的全息图记录介质再现高重现性的多值数据，并且可以减少再现数据的错误率。 在介质中记录参考色调图案，校正通过再现灰度图案而获得的灰度图案的亮度不均匀性。 基于再现灰度图案确定介质的伽马特性，并且在空间光调制器上显示使用基于伽马特性确定的容易分离的亮度值产生的调制图案，以将数据以多值记录到介质中。 因此，对数据进行过采样和记录，并且根据块中的像素的相对亮度级别的顺序对再现数据的块进行解码，以解码整个再现的多值数据。

公开(公告)号：US07289255B2

公开(公告)日：2007-10-30

申请号：US11190012

申请日：2005-07-27

申请人： Shigeyuki Baba ,  Nobuhiro Kihara

发明人： Shigeyuki Baba ,  Nobuhiro Kihara

IPC分类号： G03H1/04

CPC分类号： G11B7/00781 ,  G03H1/265 ,  G11B7/0065 ,  G11B7/083

摘要： The present invention provides a hologram apparatus for recording interference fringes formed from reference light and signal light optically spatially modulated by a spatial light modulator on a hologram recording material or picking up an image of reproduction signal light produced by irradiating illumination reproduction light on the hologram recording material by means of an image pickup device to obtain a reproduction image signal. The hologram apparatus includes a matching data acquisition section, an arithmetic operation section, and a positioning control section. The matching data acquisition section directly picks up an image of the signal light optically spatially modulated with a pixel matching pattern displayed on the spatial light modulator by means of the image pickup device to obtain a reproduction image signal. The arithmetic operation section performs predetermined arithmetic operation using a luminance value of the reproduction image signal. The positioning control section moves a relative position between the image pickup device and the spatial light modulator in response to a result of the arithmetic operation of the arithmetic operation section.

摘要翻译： 本发明提供了一种全息图装置，用于将由参考光形成的干涉条纹和由空间光调制器光学空间调制的信号光记录在全息图记录材料上或拾取通过在全息图记录上照射照明再现光而产生的再现信号光的图像 材料通过图像拾取装置获得再现图像信号。 全息图装置包括匹配数据获取部分，算术运算部分和定位控制部分。 匹配数据获取部分通过图像拾取装置直接拾取由空间光调制器上显示的像素匹配图案光学空间调制的信号光的图像，以获得再现图像信号。 运算部使用再现图像信号的亮度值进行规定的运算。 定位控制部分响应于算术运算部分的算术运算的结果，移动图像拾取装置和空间光调制器之间的相对位置。

公开(公告)号：US20050185233A1

公开(公告)日：2005-08-25

申请号：US11049725

申请日：2005-02-04

申请人： Shigeyuki Baba ,  Nobuhiro Kihara

发明人： Shigeyuki Baba ,  Nobuhiro Kihara

IPC分类号： G03H1/04 ,  G03H1/08 ,  G03H1/22 ,  G11B7/004 ,  G11B7/0065 ,  G11B7/013 ,  G11B20/14

CPC分类号： G11B7/24088 ,  G11B7/0065 ,  G11B20/1496

摘要： A method and apparatus is disclosed which can reproduce multi-value data with high reproducibility from a hologram recording medium having data recorded in multi-values therein and can reduce the error rate of reproduction data. A reference gradation pattern is recorded in a medium, and luminance unevenness of a gradation pattern obtained by reproducing the gradation pattern is corrected. A gamma characteristic of the medium is determined based on the reproduction gradation pattern, and a modulation pattern produced using easily separable luminance values determined based on the gamma characteristic is displayed on a spatial light modulator to record data in multi-values into the medium. Thereupon, the data are oversampled and recorded, and a block of the reproduced data is decoded depending upon a sequence of relative luminance levels of pixels in the block to decode the entire reproduced multi-value data.

摘要翻译： 公开了一种方法和装置，其可以从具有以多值记录的数据的全息图记录介质再现高重现性的多值数据，并且可以减少再现数据的错误率。 在介质中记录参考色调图案，校正通过再现灰度图案而获得的灰度图案的亮度不均匀性。 基于再现灰度图案确定介质的伽马特性，并且在空间光调制器上显示使用基于伽马特性确定的容易分离的亮度值产生的调制图案，以将数据以多值记录到介质中。 因此，对数据进行过采样和记录，并且根据块中的像素的相对亮度级别的顺序对再现数据的块进行解码，以解码整个再现的多值数据。