METHOD FOR REDUCING MOIRE PATTERNS ON AN AUTOSTEREOSCOPIC DISPLAY

    公开(公告)号:WO2019132660A1

    公开(公告)日:2019-07-04

    申请号:PCT/NL2018/050887

    申请日:2018-12-24

    摘要: The invention relates to a method for reducing moire patterns on an autostereoscopic display, which display comprises an array of pixels, each having at least one sub- pixel corresponding to a main color, lined with a view altering layer, such as a lenticular lens stack or parallax barrier, and wherein the display further comprises an eye tracking system for determining the position of the eyes of a viewer relative to the display, which method comprises the steps of: - moire pattern detection by repeating for each main color the steps of : + activating the sub-pixels of all pixels corresponding to the single main color; + obtaining moire pattern data by observing the display from a plurality of viewing positions; + determining from the obtained moire pattern data the frequency, phase, direction and amplitude of the moire pattern for each of the viewing positions and storing the determined values; - controlling the pixels of the autostereoscopic display to display 3D images, wherein the controlling comprises at least the steps of: + determining the viewing position of the eyes of a viewer using the eye tracking system; + rendering 3D images from image data, while correcting the 3D images by superimposing a compensation pattern for each main color, which pattern is generated based on the stored values and the determined viewing position to reduce the moire pattern for said viewing position.

    METHOD FOR REDUCING CROSSTALK ON AN AUTOSTEREOSCOPIC DISPLAY

    公开(公告)号:WO2019132659A1

    公开(公告)日:2019-07-04

    申请号:PCT/NL2018/050886

    申请日:2018-12-24

    摘要: The invention relates to a method for reducing crosstalk on an autostereoscopic display, wherein the display comprises an array of pixels lined with a view altering layer, such as a lenticular lens stack or parallax barrier, which display further comprises an eye tracking system for determining the position of the eyes of a viewer relative to the display, which method comprises the steps of: - defining a common nonlinear physical model for a view altering layer portion corresponding to a pixel or group of pixels, which nonlinear physical model has at least one variable for the position of the respective pixel or group of pixels relative to the display, a variable for the viewing position of the eyes of a viewer relative to the display and parameters related to the variables; - calibrating the autostereoscopic display by repeating for all pixels or group of pixels of the display, the steps of : + obtaining calibration data by observing the visibility of a pixel or group of pixels from at least two viewing positions; + fitting the calibration data on the nonlinear physical model for the respective view altering layer portion to obtain the parameters related to the variables; and + storing the parameters for the respective view altering layer portion; - controlling the pixels of the autostereoscopic display to display 3D images, wherein the controlling comprises at least the steps of: + determining the viewing position of the eyes of a viewer using the eye tracking system; + rendering 3D images from image data taking into account the position of the pixels or group of pixels relative to the viewing position, while correcting the 3D images per pixel or group of pixels using the common nonlinear physical model and the stored parameters for the view altering layer portion corresponding to the pixel of group of pixels.

    CAMERA ALIGNMENT AND/OR CALIBRATION METHODS AND APPARATUS
    3.
    发明申请
    CAMERA ALIGNMENT AND/OR CALIBRATION METHODS AND APPARATUS 审中-公开
    摄像机对准和/或校准方法和设备

    公开(公告)号:WO2018014014A1

    公开(公告)日:2018-01-18

    申请号:PCT/US2017/042285

    申请日:2017-07-15

    申请人: NEXTVR INC.

    IPC分类号: G06K9/32 H04N13/00

    摘要: Methods and apparatus for aligning components of camera assemblies of one or more camera pairs, e.g., a stereoscopic camera pairs, are described. A camera calibration tool referred to as a camera bra is used. Each dome of the camera bra includes a test pattern, e.g., grid of points, with the domes being aligned and spaced apart by a predetermined amount. The bra is placed over the cameras of a camera pair, the grids are detected and displayed. The camera component positions are adjusted until the displayed images show the grids as being properly aligned. Because the grids on the calibration tool are properly aligned as a result of the manufacturing of the calibration tool, when the images are brought into alignment the cameras will be properly spaced and aligned at which point the calibration tool can be removed and the stereoscopic camera pair used to capture images of a scene.

    摘要翻译: 描述了用于对准一个或多个相机对的相机组件的组件的方法和装置,例如,立体相机对。 使用称为相机胸罩的相机校准工具。 相机胸罩的每个圆顶包括测试图案,例如点的网格,并且圆顶以预定量对齐并间隔开。 胸罩放置在相机对的相机上,网格被检测并显示。 调整相机组件的位置,直到显示的图像显示网格正确对齐。 由于校准工具上的网格由于校准工具的制造而被正确对齐,因此当图像对齐时,相机将被正确地隔开并对准,在该点校准工具可以被移除,并且立体相机对 用于捕捉场景的图像。

    CALIBRATING A NEAR-EYE DISPLAY
    4.
    发明申请
    CALIBRATING A NEAR-EYE DISPLAY 审中-公开
    校准近视显示

    公开(公告)号:WO2017058495A1

    公开(公告)日:2017-04-06

    申请号:PCT/US2016/051197

    申请日:2016-09-11

    IPC分类号: H04N13/04 G02B27/01

    摘要: Examples are disclosed herein that relate to calibrating a user's eye for a stereoscopic display. One example provides, on a head-mounted display device including a see-through display, a method of calibrating a stereoscopic display for a user's eyes, the method including for a first eye, receiving an indication of alignment of a user-controlled object with a first eye reference object viewable via the head-mounted display device from a perspective of the first eye,, determining a first ray intersecting the user-controlled object and the first eye reference object from the perspective of the first eye, and determining a position of the first eye based on the first ray. The method further includes repeating such steps for a second eye, determining a position of the second eye based on a second ray, and calibrating the stereoscopic display based on the position of the first eye and the position of the second eye.

    摘要翻译: 本文公开了与立体显示器校准用户眼睛有关的示例。 一个示例在包括透视显示器的头戴式显示设备上提供了一种校准用户眼睛的立体显示的方法,该方法包括用于第一只眼睛的方法,接收用户控制物体的对准指示与 从第一眼睛的角度通过头戴式显示装置观看的第一眼睛参照物体,从第一只眼睛的角度确定与用户控制物体和第一眼睛参照物体相交的第一光线,并且确定位置 的第一只眼睛基于第一根射线。 该方法还包括对第二只眼睛重复这样的步骤,基于第二射线确定第二只眼睛的位置,以及基于第一只眼睛的位置和第二只眼睛的位置校准立体显示。

    显示装置及其工作方法
    5.
    发明申请

    公开(公告)号:WO2017016195A1

    公开(公告)日:2017-02-02

    申请号:PCT/CN2016/070354

    申请日:2016-01-07

    发明人: 宋松 永山和由

    IPC分类号: G02B27/22

    摘要: 一种显示装置及其工作方法,所述显示装置包括第一显示面板(101)、第二显示面板(102)和背光源(103),所述第一显示面板(101)与所述第二显示面板(102)柔性连接,所述第一显示面板(101)设置在所述背光源(103)的出光侧;所述第一显示面板(101)的出光面能够与所述第二显示面板(102)的第一面紧邻相对设置,并且所述第二显示面板(102)形成遮光区域(108)和透光区域(109),第一显示面板(101)形成与观看者左眼对应的左眼图像、以及与观看者右眼对应的右眼图像,使得通过遮光区域(108)和透光区域(109),观看者左眼仅能看到左眼图像,而观看者右眼仅能看到右眼图像,该显示装置能有效调节3D显示。

    双目AR头戴显示设备及其信息显示方法

    公开(公告)号:WO2016115873A1

    公开(公告)日:2016-07-28

    申请号:PCT/CN2015/086351

    申请日:2015-08-07

    IPC分类号: G06T7/00 H04N13/04

    摘要: 本发明公开了一种双目AR头戴设备,在头戴设备内预置映射关系f c→s 和f d→i 的前提下,通过图像跟踪方法实时获取目标物体在摄像机拍摄的图像上的位置,并映射到头戴设备的屏幕坐标系,计算出左像/右像的显示位置。然后通过单目测距的方法,利用摄像机成像比例实时计算目标物体与摄像机之间的距离,从而计算出左右像间距。继而计算另一侧像的显示位置。相应地,本发明还提供了一种双目AR头戴设备的信息显示方法及增强现实信息显示系统,本发明方法可靠性高且成本低。传统景深调节均是从改变光学原件像距入手,本发明打破传统思维,不改变光学器件结构,通过计算左右像显示位置实现调节景深,具有开创性,且相比改变光学焦距,更具有实用性。

    A METHOD, APPARATUS AND SYSTEM FOR CORRECTING FOR ERRORS OF STEREOSCOPIC DISPLAYS
    7.
    发明申请
    A METHOD, APPARATUS AND SYSTEM FOR CORRECTING FOR ERRORS OF STEREOSCOPIC DISPLAYS 审中-公开
    用于校正立体显示错误的方法,装置和系统

    公开(公告)号:WO2016079293A1

    公开(公告)日:2016-05-26

    申请号:PCT/EP2015/077208

    申请日:2015-11-20

    申请人: THOMSON LICENSING

    发明人: BOREL, Thierry

    IPC分类号: H04N13/04

    摘要: The present principles provide a method, apparatus and system for locally correcting angular errors due to displacement when placing micro-lenses/barriers on a display by shifting the views at a sub-pixel level using higher resolution panels. In such panels, instead of having one sub-pixel to generate one view, there are more than one sub-pixels used to generate one view. The sub-pixels are grouped differently depending on their position on the screen to compensate for bad positioning of lenses (barriers) on the glass of a display.

    摘要翻译: 本发明提供了一种用于局部校正由于位移时的角度误差的方法,装置和系统,当通过使用更高分辨率的面板使子像素级移动视图而将微透镜/屏障放置在显示器上时。 在这样的面板中,代替具有一个子像素来生成一个视图,不止一个子像素用于生成一个视图。 子像素根据其在屏幕上的位置被不同地分组,以补偿显示器玻璃上的透镜(屏障)的不良定位。

    THREE-DIMENSIONAL DISPLAY DEVICE AND METHOD FOR PROCESSING A DEPTH-RELATED SIGNAL
    8.
    发明申请
    THREE-DIMENSIONAL DISPLAY DEVICE AND METHOD FOR PROCESSING A DEPTH-RELATED SIGNAL 审中-公开
    三维显示装置和处理深度相关信号的方法

    公开(公告)号:WO2014029428A1

    公开(公告)日:2014-02-27

    申请号:PCT/EP2012/066325

    申请日:2012-08-22

    IPC分类号: H04N13/00 H04N13/04

    摘要: Three-dimensional [3D] display device (100) for processing a depth-related signal (122), the 3D display device comprising: -an input (120) for obtaining the depth-related signal, the depth-related signal comprising depth-related values distributed within a signal depth-related range (310), the depth-related values enabling 3D rendering of a two-dimensional [2D] image signal (124) on the 3D display device; -a processor (140) for mapping the depth-related values to a display depth-related range (320) of the 3D display device to obtain adjusted depth-related values for use in the 3D rendering; and -the processor (140) being arranged for, as part of said mapping the depth-related values, adjusting a distribution of the depth-related values within the display depth-related range (320) based on limitation data (126), the limitation data being indicative of a perceptual quality provided to a viewer as a function of a degree of depth established by the 3D display device.

    摘要翻译: 用于处理深度相关信号(122)的三维[3D]显示设备(100),所述3D显示设备包括: - 用于获得所述深度相关信号的输入(120),所述深度相关信号包括深度相关信号 分布在信号深度相关范围(310)内的相关值,所述深度相关值使得3D显示装置上的二维[2D]图像信号(124)能够3D渲染; - 处理器(140),用于将所述深度相关值映射到所述3D显示设备的显示深度相关范围(320),以获得用于所述3D渲染中的经调整的深度相关值; 并且 - 处理器(140)被布置为作为所述映射的一部分,用于基于限制数据(126)来调整深度相关值在所述显示深度相关范围内的分布(320),所述深度相关值 限制数据表示作为由3D显示装置建立的深度的函数提供给观看者的感知质量。

    METHOD AND SYSTEM FOR SHARED VIEWING BASED ON VIEWER POSITION TRACKING
    10.
    发明申请
    METHOD AND SYSTEM FOR SHARED VIEWING BASED ON VIEWER POSITION TRACKING 审中-公开
    基于查看器位置跟踪的共享查看方法和系统

    公开(公告)号:WO2014005605A1

    公开(公告)日:2014-01-09

    申请号:PCT/EP2012/002848

    申请日:2012-07-06

    IPC分类号: H04N13/04

    摘要: The invention relates to a method for providing a shared view of images on a display (14) to at least two viewers (USER-1, USER-2,... USER-n), comprising the steps of tracking positions of the at least two viewers (USER-1, USER-2,... USER-n) relative to the display (14), selecting images to be displayed for each of the at least two viewers (USER-1, USER-2,... USER-n) based on the tracked positions, and displaying the selected images on the display (14) sequentially in time to the at least two viewers (USER-1, USER-2,... USER-n) such that images selected for different viewers are displayed at different times, wherein it is provided that each viewer (USER-1, USER-2,... USER-n) can only view the displayed images selected for the respective viewer (USER-1, USER-2,... USER-n). In this way, a possibility is provided for each individual viewer to watch a 3D artificial scenario from his preferred individual position on the same display together with other viewers such that shared viewing of a 3D scenario becomes possible.

    摘要翻译: 本发明涉及一种用于向显示器(14)向至少两个观看者(USER-1,USER-2,...,USER-n)提供图像的共享视图的方法,包括以下步骤:跟踪at 至少两个观看者(USER-1,USER-2,... USER-n)相对于显示器(14),选择要为至少两个观看者(USER-1,USER-2,...)中的每一个显示的图像。 根据所追踪的位置,并且在时间上依次将显示器(14)上的所选择的图像显示给至少两个观看者(USER-1,USER-2,...,USER-n),使得 在不同时间显示为不同观众选择的图像,其中提供的是每个观看者(USER-1,USER-2,...,USER-n)只能查看为各观众选择的显示图像(USER-1, USER-2,... USER-n)。 以这种方式,为每个观众提供一种可能性,以便与其他观看者一起从他在同一显示器上的优选个人位置观看3D人造场景,使得3D场景的共享观看成为可能。