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    Combined Emissive and Reflective Dual Modulation Display System
    11.
    发明申请
    Combined Emissive and Reflective Dual Modulation Display System 审中-公开
    组合发射和反射双调制显示系统

    公开(公告)号：US20130328948A1

    公开(公告)日：2013-12-12

    申请号：US13909939

    申请日：2013-06-04

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Timo Kunkel ,  Scott Daly

    IPC: G09G3/22

    CPC classification number: G09G3/22 ,  G09G3/20 ,  G09G2300/046 ,  G09G2320/0626 ,  G09G2320/0666

    Abstract: Pixels of a display system may comprise light emitting elements whose light output levels are set based on image data as well as background areas whose light reflectance levels are set based on the same image data. These light output levels and/or light reflectance levels may also be adjusted based on an ambient light level. The background areas may comprise light reflective elements which may be controlled individually or as a whole. The light output levels of the light emitting elements and the light reflectance levels of the light reflective elements are configured to generate collectively a pixel value for the pixel dependent on the image data. One or more modulation algorithms may be used to control the energy consumption, dynamic range, color gamut, point-spread function, etc., of the pixels in the display system.

    Abstract translation: 显示系统的像素可以包括基于图像数据设置其光输出电平的发光元件以及基于相同图像数据设置其光反射率水平的背景区域。 这些光输出水平和/或光反射率水平也可以基于环境光水平进行调整。 背景区域可以包括可以单独地或作为整体控制的光反射元件。 发光元件的光输出水平和光反射元件的光反射率水平被配置为根据图像数据集中地生成像素值。 可以使用一种或多种调制算法来控制显示系统中的像素的能量消耗，动态范围，色域，点扩散函数等。

    Perceptual luminance nonlinearity-based image data exchange across different display capabilities
    12.
    发明授权
    Perceptual luminance nonlinearity-based image data exchange across different display capabilities 有权

    公开(公告)号：US12217724B2

    公开(公告)日：2025-02-04

    申请号：US18542921

    申请日：2023-12-18

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Jon Scott Miller ,  Scott Daly ,  Mahdi Nezamabadi ,  Robin Atkins

    IPC: G06K9/00 ,  G06F3/14 ,  G09G5/00 ,  G09G5/06 ,  G09G5/10 ,  H04N19/40

    Abstract: A handheld imaging device has a data receiver that is configured to receive reference encoded image data. The data includes reference code values, which are encoded by an external coding system. The reference code values represent reference gray levels, which are being selected using a reference grayscale display function that is based on perceptual non-linearity of human vision adapted at different light levels to spatial frequencies. The imaging device also has a data converter that is configured to access a code mapping between the reference code values and device-specific code values of the imaging device. The device-specific code values are configured to produce gray levels that are specific to the imaging device. Based on the code mapping, the data converter is configured to transcode the reference encoded image data into device-specific image data, which is encoded with the device-specific code values.

    Method, Systems and Apparatus for Hybrid Near/Far Virtualization for Enhanced Consumer Surround Sound
    14.
    发明申请
    Method, Systems and Apparatus for Hybrid Near/Far Virtualization for Enhanced Consumer Surround Sound 有权

    公开(公告)号：US20220345845A1

    公开(公告)日：2022-10-27

    申请号：US17763124

    申请日：2020-09-22

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Nicolas R. Tsingos ,  Satej Suresh Pankey ,  Vimal Puthanveed ,  Poppy Anne Carrie Crum ,  Jeffrey Ross Baker ,  Ian Eric Esten ,  Scott Daly ,  Daniel Paul Darcy

    IPC: H04S7/00

    Abstract: Embodiments are disclosed for hybrid near/far-field speaker virtualization. In an embodiment, a method comprises: receiving a source signal including channel-based audio or audio objects; generating near-field gain(s) and far-field gain(s) based on the source signal and a blending mode; generating a far-field signal based, at least in part, on the source signal and the far-field gain(s); rendering, using a speaker virtualizer, the far-field signal for playback of far-field acoustic audio through far-field speakers into an audio reproduction environment; generating a near-field signal based at least in part on the source signal and the near-field gain(s); prior to providing the far-field signal to the far-field speakers, sending the near-field signal to a near-field playback device or an intermediate device coupled to the near-field playback device; providing the far-field signal to the far-field speakers; and providing the near-field signal to the near-field speakers to synchronously overlay the far-field acoustic audio.

    Perceptual luminance nonlinearity-based image data exchange across different display capabilities
    15.
    发明授权
    Perceptual luminance nonlinearity-based image data exchange across different display capabilities 有权

    公开(公告)号：US10957283B2

    公开(公告)日：2021-03-23

    申请号：US16812810

    申请日：2020-03-09

    Applicant: DOLBY LABORATORIES LICENSING CORPORATION

    Inventor： Jon Scott Miller ,  Scott Daly ,  Mahdi Nezamabadi ,  Robin Atkins

    IPC: G06K9/00 ,  G09G5/10 ,  H04N19/40 ,  G06F3/14 ,  G09G5/00 ,  G09G5/06

    Abstract: A handheld imaging device has a data receiver that is configured to receive reference encoded image data. The data includes reference code values, which are encoded by an external coding system. The reference code values represent reference gray levels, which are being selected using a reference grayscale display function that is based on perceptual non-linearity of human vision adapted at different light levels to spatial frequencies. The imaging device also has a data converter that is configured to access a code mapping between the reference code values and device-specific code values of the imaging device. The device-specific code values are configured to produce gray levels that are specific to the imaging device. Based on the code mapping, the data converter is configured to transcode the reference encoded image data into device-specific image data, which is encoded with the device-specific code values.

    Image highlight detection and rendering
    16.
    发明授权
    Image highlight detection and rendering 有权

    公开(公告)号：US10607324B2

    公开(公告)日：2020-03-31

    申请号：US15564188

    申请日：2016-04-26

    Applicant: DOLBY LABORATORIES LICENSING CORPORATION

    Inventor： Suzanne Farrell ,  Scott Daly ,  Timo Kunkel

    IPC: G06T5/00 ,  G06T7/90

    Abstract: A highlight mask is generated for an image to identify one or more highlights in the image. One or more highlight classifiers are determined for the one or more highlights in the image. One or more highlight gains are applied with the highlight mask to luminance amplitudes of pixels in the one or more highlights in the image to generate a scaled image. The one or more high-light gains for the one or more highlights are determined based at least in part on the one or more highlight classifiers determined for the one or more highlights.

    Adaptive False Contouring Prevention in Layered Coding of Images with Extended Dynamic Range
    19.
    发明申请
    Adaptive False Contouring Prevention in Layered Coding of Images with Extended Dynamic Range 有权
    具有扩展动态范围的图像分层编码中的自适应假轮廓预防

    公开(公告)号：US20140294313A1

    公开(公告)日：2014-10-02

    申请号：US14353090

    申请日：2012-11-01

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Guan-Ming Su ,  Sheng Qu ,  Scott Daly

    IPC: G06T9/00

    CPC classification number: G06T9/00 ,  H04N19/124 ,  H04N19/154 ,  H04N19/176 ,  H04N19/179 ,  H04N19/182 ,  H04N19/192 ,  H04N19/46 ,  H04N19/86 ,  H04N19/98

    Abstract: An encoder receives a sequence of images in extended or visual dynamic range (VDR). For each image, a dynamic range compression function and associated parameters are selected to convert the input image into a second image with a lower dynamic range. Using the input image and the second image, a residual image is computed. The input VDR image sequence is coded using a layered codec that uses the second image as a base layer and a residual image that is derived from the input and second images as one or more residual layers. Using the residual image, a false contour detection method (FCD) estimates the number of potential perceptually visible false contours in the decoded VDR image and iteratively adjusts the dynamic range compression parameters to prevent or reduce the number of false contours. Examples that use a uniform dynamic range compression function are also described.

    Abstract translation: 编码器在扩展或视觉动态范围（VDR）中接收一系列图像。 对于每个图像，选择动态范围压缩函数和相关参数以将输入图像转换为具有较低动态范围的第二图像。 使用输入图像和第二图像，计算残差图像。 输入VDR图像序列使用分层编解码器进行编码，其使用第二图像作为基本层，并且从输入和第二图像导出的残差图像作为一个或多个残余层。 使用残差图像，假轮廓检测方法（FCD）估计解码的VDR图像中潜在的感知可见假轮廓的数量，并且迭代地调整动态范围压缩参数以防止或减少假轮廓的数量。 还描述了使用均匀动态范围压缩功能的示例。

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