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    SYSTEMS AND METHODS FOR APPEARANCE MAPPING FOR COMPOSITING OVERLAY GRAPHICS
    2.
    发明公开
    SYSTEMS AND METHODS FOR APPEARANCE MAPPING FOR COMPOSITING OVERLAY GRAPHICS 审中-公开
    系统和外观映射方法用于组装覆盖图形

    公开(公告)号：EP2959676A1

    公开(公告)日：2015-12-30

    申请号：EP14703244.5

    申请日：2014-01-27

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： KUNKEL, Timo ,  XU, Ning ,  CHEN, Tao ,  LEE, Bongsun ,  HULYALKAR, Samir N.

    IPC: H04N5/272 ,  H04N5/445 ,  H04N21/81

    Abstract: Systems and methods for overlaying a second image/video data onto a first image/video data are described herein. The first image/video data may be intended to be rendered on a display with certain characteristics—e.g., HDR, EDR, VDR or UHD capabilities. The second image/video data may comprise graphics, closed captioning, text, advertisement—or any data that may be desired to be overlaid and/or composited onto the first image/video data. The second image/video data may be appearance mapped according to the image statistics and/or characteristics of the first image/video data. In addition, such appearance mapping may be made according to the characteristics of the display that the composite data is to be rendered. Such appearance mapping is desired to render a composite data that is visually pleasing to a viewer, rendered upon a desired display.

    FUSED REGION-BASED VDR PREDICTION
    5.
    发明公开
    FUSED REGION-BASED VDR PREDICTION 审中-公开
    ON融合基于区域的VDR预测

    公开(公告)号：EP2719176A1

    公开(公告)日：2014-04-16

    申请号：EP12724813.6

    申请日：2012-05-21

    Applicant: Dolby Laboratories Licensing Corporation

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

    IPC: H04N7/26

    CPC classification number: H04N19/105 ,  H04N19/176 ,  H04N19/187 ,  H04N19/30 ,  H04N19/46 ,  H04N19/50 ,  H04N19/583 ,  H04N19/593

    Abstract: An input image is divided into non-overlapping regions. For each of the non-overlapping regions, first output data is predicted with a first prediction function, parameters related thereto and region-specific input image data. For each region with prior-predicted neighbor regions, a pixel border portion, adjacent to the neighbor region, is defined. For the pixels in the defined border portion, second output data is predicted with a second prediction function, parameters related thereto, input image data from the border portion of the current region, and input prediction parameter data from the neighbor region. The first output prediction data is fused with the second output data to predict a final set of output prediction values.

    LAYER DECOMPOSITION IN HIERARCHICAL VDR CODING
    10.
    发明公开
    LAYER DECOMPOSITION IN HIERARCHICAL VDR CODING 审中-公开

    公开(公告)号：EP3468203A1

    公开(公告)日：2019-04-10

    申请号：EP18201888.7

    申请日：2012-11-01

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： SU, Guan-Ming ,  QU, Sheng ,  HULYALKAR, Samir N. ,  CHEN, Tao ,  GISH, Walter C. ,  KOEPFER, Hubert

    IPC: H04N19/98 ,  H04N19/30 ,  H04N19/126 ,  H04N19/142 ,  H04N19/187

    Abstract: Techniques use multiple lower bit depth codecs to provide higher bit depth, high dynamic range, images from an upstream device to a downstream device. A base layer and one or more enhancement layers may be used to carry video signals, wherein the base layer cannot be decoded and viewed on its own. Lower bit depth input image data to base layer processing may be generated from higher bit depth high dynamic range input image data via advanced quantization to minimize the volume of image data to be carried by enhancement layer video signals. The image data in the enhancement layer video signals may comprise residual values, quantization parameters, and mapping parameters based in part on a prediction method corresponding to a specific method used in the advanced quantization. Adaptive dynamic range adaptation techniques take into consideration special transition effects, such as fade-in and fade-outs, for improved coding performance.

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