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    Device and Method of Improving the Perceptual Luminance Nonlinearity-Based Image Data Exchange Across Different Display Capabilities
    14.
    发明申请
    Device and Method of Improving the Perceptual Luminance Nonlinearity-Based Image Data Exchange Across Different Display Capabilities 有权
    提高基于不同显示能力的感知亮度非线性图像数据交换的设备和方法

    公开(公告)号：US20140363093A1

    公开(公告)日：2014-12-11

    申请号：US14363129

    申请日：2012-12-06

    Applicant: Dolby Laboratories Licensing Corporation

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

    IPC: H04N19/40

    CPC classification number: G09G5/10 ,  G06F3/14 ,  G09G5/005 ,  G09G2320/0276 ,  G09G2320/0285 ,  G09G2320/04 ,  G09G2340/0428 ,  G09G2340/0435 ,  G09G2340/06 ,  G09G2340/14 ,  G09G2370/04 ,  G09G2370/08 ,  G09G2380/08 ,  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.

    Abstract translation: 手持成像设备具有被配置为接收参考编码图像数据的数据接收器。 数据包括由外部编码系统编码的参考码值。 参考码值表示参考灰度级，其使用基于在不同光级别对空间频率适应的人类视觉的感知非线性的参考灰度显示功能来选择。 成像设备还具有数据转换器，其被配置为访问成像设备的参考代码值和设备特定代码值之间的代码映射。 设备特定的代码值被配置为产生特定于成像设备的灰度级。 基于代码映射，数据转换器被配置为将参考编码图像数据转码为特定于设备的图像数据，其由特定于设备的代码值进行编码。

    Method and System for Backward Compatible, Extended Dynamic Range Encoding of Video
    15.
    发明申请
    Method and System for Backward Compatible, Extended Dynamic Range Encoding of Video 有权
    用于向后兼容的方法和系统，视频的扩展动态范围编码

    公开(公告)号：US20140341272A1

    公开(公告)日：2014-11-20

    申请号：US14344150

    申请日：2012-08-31

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Jon Scott Miller ,  Mahdi Nezamabadi, I ,  Craig Todd

    IPC: H04N19/98

    CPC classification number: H04N19/98 ,  H04N5/202 ,  H04N5/57 ,  H04N19/46

    Abstract: In some embodiments, an encoding method for generating an extended dynamic range (EDR) channel in response to an input video channel, such that the EDR channel's code values consist of code values in a range from a standard black level, X, through a standard white level, Z, and an additional code value set. The EDR channel is displayable with standard dynamic range and standard precision by a standard dynamic range video system which maps to the level, X, any of the EDR channel's values less than X, and maps to the level, Z, any of the EDR channel's values greater than Z, and is displayable with an extended dynamic range greater than the standard dynamic range and/or a precision greater than the standard precision by an EDR video system. Other aspects are systems configured to perform embodiments of the encoding method, and methods and systems for displaying EDR video.

    Abstract translation: 在一些实施例中，一种用于响应于输入视频信道产生扩展动态范围（EDR）信道的编码方法，使得EDR信道的码值包括从标准黑电平X到标准的范围内的码值 白色级别，Z和一个附加代码值集合。 EDR通道可以通过标准动态范围视频系统显示，具有标准动态范围和标准精度，该视频系统映射到等级X，任何EDR通道的值小于X，并映射到电平Z，任何EDR通道的 值大于Z，并且可以通过EDR视频系统具有大于标准动态范围的扩展动态范围和/或大于标准精度的精度来显示。 其他方面是被配置为执行编码方法的实施例的系统，以及用于显示EDR视频的方法和系统。

    Perceptual luminance nonlinearity-based image data exchange across different display capabilities
    16.
    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.

    Perceptual luminance nonlinearity-based image data exchange across different display capabilities
    18.
    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.

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