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    System and Methods for Generating Scene Stabilized Metadata
    3.
    发明申请
    System and Methods for Generating Scene Stabilized Metadata 有权
    用于生成场景稳定元数据的系统和方法

    公开(公告)号：US20160254028A1

    公开(公告)日：2016-09-01

    申请号：US14906306

    申请日：2014-07-28

    Applicant: DOLBY LABORATORIES LICENSING CORPORATION

    Inventor： Robin ATKINS ,  Raymond YEUNG ,  Sheng QU

    IPC: G11B27/30 ,  H04N5/14 ,  G11B27/34

    CPC classification number: G11B27/3027 ,  G09G5/10 ,  G09G2360/16 ,  G09G2370/04 ,  G11B27/28 ,  G11B27/34 ,  H04N5/147 ,  H04N5/268 ,  H04N5/91 ,  H04N9/8205

    Abstract: Methods and systems for generating and applying scene-stable metadata for a video data stream are disclosed herein. A video data stream is divided or partitioned into scenes and a first set of metadata may be generated for a given scene of video data. The first set of metadata may be any known metadata as a desired function of video content (e.g., luminance). The first set of metadata may be generated on a frame-by-frame basis. In one example, scene-stable metadata may be generated that may be different from the first set of metadata for the scene. The scene-stable metadata may be generated by monitoring a desired feature with the scene and may be used to keep the desired feature within an acceptable range of values. This may help to avoid noticeable and possibly objectionably visual artifacts upon rendering the video data.

    Abstract translation: 本文公开了用于为视频数据流生成和应用场景稳定元数据的方法和系统。 视频数据流被划分或划分为场景，并且可以为给定的视频数据场景生成第一组元数据。 第一组元数据可以是作为视频内容（例如，亮度）的期望功能的任何已知元数据。 可以逐帧地生成第一组元数据。 在一个示例中，可以生成与场景的第一组元数据不同的场景稳定元数据。 场景稳定元数据可以通过用场景监视期望的特征来产生，并且可以用于将期望的特征保持在可接受的值范围内。 这可能有助于在渲染视频数据时避免显着和可能令人反感的视觉伪影。

    MULTIPLE COLOR CHANNEL MULTIPLE REGRESSION PREDICTOR
    4.
    发明申请
    MULTIPLE COLOR CHANNEL MULTIPLE REGRESSION PREDICTOR 有权
    多彩色通道多重回归预测器

    公开(公告)号：US20140307796A1

    公开(公告)日：2014-10-16

    申请号：US14283845

    申请日：2014-05-21

    Applicant: DOLBY LABORATORIES LICENSING CORPORATION

    Inventor： Guan-Ming SU ,  Sheng QU ,  Hubert KOEPFER ,  Yufei YUAN ,  Samir HULYALKAR

    IPC: H04N19/98 ,  H04N19/192 ,  H04N19/30 ,  H04N19/16

    CPC classification number: H04N19/105 ,  G06F17/18 ,  H04N19/147 ,  H04N19/16 ,  H04N19/192 ,  H04N19/30 ,  H04N19/98

    Abstract: Inter-color image prediction is based on multi-channel multiple regression (MMR) models. Image prediction is applied to the efficient coding of images and video signals of high dynamic range. MMR models may include first order parameters, second order parameters, and crosspixel parameters. MMR models using extension parameters incorporating neighbor pixel relations are also presented. Using minimum means-square error criteria, closed form solutions for the prediction parameters are presented for a variety of MMR models.

    Abstract translation: 彩色图像预测是基于多通道多元回归（MMR）模型。 图像预测应用于高动态范围的图像和视频信号的有效编码。 MMR模型可以包括一阶参数，二阶参数和十字像素参数。 还提出了使用包含相邻像素关系的扩展参数的MMR模型。 使用最小均方误差准则，针对各种MMR模型提出了预测参数的闭合形式解。

    System and Methods for Generating Scene Stabilized Metadata
    6.
    发明申请
    System and Methods for Generating Scene Stabilized Metadata 审中-公开

    公开(公告)号：US20170125063A1

    公开(公告)日：2017-05-04

    申请号：US15408262

    申请日：2017-01-17

    Applicant: DOLBY LABORATORIES LICENSING CORPORATION

    Inventor： Robin ATKINS ,  Raymond YEUNG ,  Sheng QU

    IPC: G11B27/30 ,  H04N9/82 ,  G11B27/34 ,  H04N5/14

    Abstract: Methods and systems for generating and applying scene-stable metadata for a video data stream are disclosed herein. A video data stream is divided or partitioned into scenes and a first set of metadata may be generated for a given scene of video data. The first set of metadata may be any known metadata as a desired function of video content (e.g., luminance). The first set of metadata may be generated on a frame-by-frame basis. In one example, scene-stable metadata may be generated that may be different from the first set of metadata for the scene. The scene-stable metadata may be generated by monitoring a desired feature with the scene and may be used to keep the desired feature within an acceptable range of values. This may help to avoid noticeable and possibly objectionably visual artifacts upon rendering the video data.

    Transmitting Display Management Metadata Over HDMI
    8.
    发明申请
    Transmitting Display Management Metadata Over HDMI 有权
    通过HDMI传输显示管理元数据

    公开(公告)号：US20160241829A1

    公开(公告)日：2016-08-18

    申请号：US15025212

    申请日：2014-09-30

    Applicant: DOLBY LABORATORIES LICENSING CORPORATION

    Inventor： Sheng QU ,  Samir N. HULYALKAR

    IPC: H04N9/67 ,  H04N7/08 ,  H04N7/088 ,  G09G5/04 ,  H04N21/4363

    CPC classification number: H04N9/67 ,  G09G5/006 ,  G09G5/04 ,  G09G5/10 ,  G09G2320/0271 ,  G09G2370/04 ,  G09G2370/12 ,  H04N5/2355 ,  H04N5/57 ,  H04N7/0806 ,  H04N7/0887 ,  H04N21/4318 ,  H04N21/43632 ,  H04N21/43635

    Abstract: In an embodiment, a source video signal comprising reference code values and mapping function parameters for one or more mapping functions to map the reference code values to device-specific pixel values. The reference code values and the mapping function parameters are combined into first video frames in a first video signal format. The mapping function parameters represent DM metadata carried in the first video frames. Second video frames in a second video signal format are generated based on the first video frames in the first video signal format and a mapping between the first video signal format and the second video signal format. The second video frames are sent to a video sink device through the video link in an encoded video signal of the second video signal format.

    Abstract translation: 在一个实施例中，源视频信号包括用于一个或多个映射函数的参考码值和映射函数参数，以将参考码值映射到特定于设备的像素值。 将参考码值和映射函数参数以第一视频信号格式组合成第一视频帧。 映射函数参数表示在第一视频帧中携带的DM元数据。 基于第一视频信号格式的第一视频帧和第一视频信号格式与第二视频信号格式之间的映射生成第二视频信号格式的第二视频帧。 第二视频帧通过第二视频信号格式的编码视频信号中的视频链路发送到视频宿设备。

    DISTRIBUTION OF MULTI-FORMAT HIGH DYNAMIC RANGE VIDEO USING LAYERED CODING
    9.
    发明申请
    DISTRIBUTION OF MULTI-FORMAT HIGH DYNAMIC RANGE VIDEO USING LAYERED CODING 审中-公开
    使用分层编码的多格式高动态范围视频分配

    公开(公告)号：US20160014422A1

    公开(公告)日：2016-01-14

    申请号：US14772051

    申请日：2014-02-14

    Applicant: DOLBY LABORATORIES LICENSING CORPORATION

    Inventor： Guan-Ming SU ,  Samir N. HULYALKAR ,  Tao CHEN ,  Sheng QU

    IPC: H04N19/33 ,  H04N19/593 ,  G06T3/40 ,  H04N19/157 ,  H04N19/70 ,  H04N19/124 ,  H04N19/44

    CPC classification number: H04N19/33 ,  G06T3/40 ,  H04N19/124 ,  H04N19/157 ,  H04N19/44 ,  H04N19/593 ,  H04N19/70

    Abstract: An encoder receives an input enhanced dynamic range (EDR) image to be stored or transmitted using multiple coding formats in a layered representation. A layer decomposer generates a lower dynamic range (LDR) image from the EDR image. One or more base layer (BL) encoders encode the LDR image to generate a main coded BL stream and one or more secondary coded BL streams, where each secondary BL stream is coded in a different coding format than the main coded BL stream. A single enhancement layer (EL) coded stream and related metadata are generated using the main coded BL stream, the LDR image, and the input EDR image. An output coded stream includes the coded EL stream, the metadata, and either the main coded BL stream or one of the secondary coded BL streams. Computation-scalable decoding and display management processes for EDR images are also described.

    Abstract translation: 编码器以分层的形式接收使用多个编码格式存储或发送的输入增强动态范围（EDR）图像。 层分解器从EDR图像生成较低的动态范围（LDR）图像。 一个或多个基本层（BL）编码器对LDR图像进行编码以产生主编码BL流和一个或多个二次编码BL流，其中每个次BL流以与主编码BL流不同的编码格式进行编码。 使用主编码BL流，LDR图像和输入EDR图像来生成单个增强层（EL）编码流和相关元数据。 输出编码流包括编码的EL流，元数据以及主编码BL流或二次编码BL流中的一个。 还描述了EDR图像的计算可扩展解码和显示管理过程。

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