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    Rapid estimation of effective illuminance patterns for projected light fields
    21.
    发明授权
    Rapid estimation of effective illuminance patterns for projected light fields 有权

    公开(公告)号：US10186211B2

    公开(公告)日：2019-01-22

    申请号：US15899570

    申请日：2018-02-20

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Lorne A. Whitehead ,  Helge Seetzen ,  Gregory John Ward ,  Wolfgang Heidrich

    IPC: G09G3/34 ,  G09G3/36 ,  G06T3/40

    Abstract: Apparatus and methods are provided that employ one or more of a variety of techniques for reducing the time required to display high resolution images on a high dynamic range display having a light source layer and a display layer. In one technique, the image resolution is reduced, an effective luminance pattern is determined for the reduced resolution image, and the resolution of the effective luminance pattern is then increased to the resolution of the—display layer. In another technique, the light source layer's point spread function is decomposed into a plurality of components, and an effective luminance pattern is determined for each component. The effective luminance patterns are then combined to produce a total effective luminance pattern. Additional image display time reduction techniques are provided.

    Enhancing dynamic ranges of images
    25.
    发明授权
    Enhancing dynamic ranges of images 有权
    增强图像的动态范围

    公开(公告)号：US08824829B2

    公开(公告)日：2014-09-02

    申请号：US14076038

    申请日：2013-11-08

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Allan G. Rempel ,  Wolfgang Heidrich ,  Helge Seetzen ,  Gregory John Ward ,  Lorne A. Whitehead

    IPC: G06K9/40 ,  G06K9/32 ,  G09G5/10

    CPC classification number: G06T5/007 ,  G06T2207/20208 ,  G09G3/3426 ,  G09G5/10 ,  G09G2320/0646 ,  G09G2320/066 ,  H04N5/20 ,  H04N9/3126

    Abstract: Methods and apparatus according to various aspects take as input image data in a lower-dynamic-range (LDR) format and produce as output enhanced image data having a dynamic range greater than that of the input image data (i.e. higher-dynamic range (HDR) image data). In some embodiments, the methods are applied to video data and are performed in real-time (i.e. processing of video frames to enhance the dynamic range of the video frames is completed at least on average at the frame rate of the video signal).

    Abstract translation: 根据各方面的方法和装置以较低动态范围（LDR）格式输入图像数据，并产生具有大于输入图像数据的动态范围的输出增强图像数据（即，较高动态范围（HDR） ）图像数据）。 在一些实施例中，将这些方法应用于视频数据，并且实时执行（即视频帧的处理以增强视频帧的动态范围至少在视频信号的帧速率下完成）。

    RAPID IMAGE RENDERING ON DUAL-MODULATOR DISPLAYS
    28.
    发明申请
    RAPID IMAGE RENDERING ON DUAL-MODULATOR DISPLAYS 有权
    双调制显示器上的快速图像渲染

    公开(公告)号：US20140118425A1

    公开(公告)日：2014-05-01

    申请号：US14148060

    申请日：2014-01-06

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Lorne A. Whitehead ,  Helge Seetzen ,  Gregory John Ward ,  Wolfgang Heidrich

    IPC: G09G3/36

    CPC classification number: G09G3/3426 ,  G06T3/4007 ,  G09G3/36 ,  G09G2320/0238 ,  G09G2340/0428

    Abstract: A method for estimating an effective luminance pattern representing a distribution of projected light in a display apparatus involves determining driving values for one or more light sources arranged to project light. The light sources are solid-state light sources such as light-emitting diodes in some embodiments. The method determines an effective luminance pattern for the projected light by determining contributions to the effective luminance pattern for different components of a point spread function and then combining the contributions of the components the effective luminance pattern to yield an estimated effective luminance pattern.

    Abstract translation: 用于估计表示投影​​光在显示装置中的分布的有效亮度图案的方法包括确定布置成投射光的一个或多个光源的驱动值。 在一些实施例中，光源是诸如发光二极管的固态光源。 该方法通过确定对点扩散函数的不同分量的有效亮度图案的贡献，然后将分量的贡献合成有效亮度图案以产生估计的有效亮度图案，来确定投影光的有效亮度图案。

    Parallax Reduction
    29.
    发明申请
    Parallax Reduction 有权
    视差降低

    公开(公告)号：US20140029244A1

    公开(公告)日：2014-01-30

    申请号：US14028341

    申请日：2013-09-16

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Lorne A. Whitehead ,  Vincent Kwong ,  Helge Seetzen ,  Gregory John Ward

    IPC: G02F1/1335

    CPC classification number: G02F1/133606 ,  G02F1/133603 ,  G02F1/133605

    Abstract: Parallax in an optical device is reduced by apply one or a combination of several disclosed techniques, including reduced solid angle or increased collimation of light sources, increased diffusion/scattering at an output of the device, and/or reflective structures for collimation and containment of reflected light. The techniques are advantageously applied to a backlight LCD display, and particularly to high dynamic range dual modulation displays.

    Abstract translation: 通过应用几种公开的技术中的一种或组合来减少光学装置中的视差，包括缩小的立体角或增加的光源的准直，在装置的输出处增加的扩散/散射，和/或用于准直和容纳的反射结构 反射光。 这些技术有利地应用于背光LCD显示器，特别是应用于高动态范围双调制显示器。

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