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    IMAGE CODING AND DECODING METHOD AND DEVICE
    11.
    发明申请
    IMAGE CODING AND DECODING METHOD AND DEVICE 有权

    公开(公告)号：US20210021872A1

    公开(公告)日：2021-01-21

    申请号：US17061414

    申请日：2020-10-01

    Applicant: Tongji University ,  ZTE Corporation

    Inventor： Tao Lin ,  Ming Li ,  Guoqiang Shang ,  Zhao Wu

    IPC: H04N19/91 ,  H04N19/517 ,  H04N19/593 ,  H04N19/157 ,  H04N19/182

    Abstract: An image coding method and apparatus and an image decoding method and apparatus are provided by the present invention. The image coding method includes: implementing matching coding for pixels of an input video image to obtain one or more matching relationship parameters, herein the matching relationship parameters are parameters used in a process of constructing predicted values and/or reconstructed values of the pixels in the image; mapping the matching relationship parameters to obtain mapped values of the matching relationship parameters; and performing entropy coding on the mapped values of the matching relationship parameters. The present invention addresses the problem existing in the conventional art which is caused by the direct implementation of entropy coding for matching relationship parameters and achieves a good data compression effect through entropy coding.

    Image coding and decoding method and device
    12.
    发明授权
    Image coding and decoding method and device 有权

    公开(公告)号：US10834428B2

    公开(公告)日：2020-11-10

    申请号：US15507249

    申请日：2015-05-06

    Applicant: TONGJI UNIVERSITY ,  ZTE CORPORATION

    Inventor： Tao Lin ,  Ming Li ,  Guoqiang Shang ,  Zhao Wu

    IPC: H04N19/91 ,  H04N19/517 ,  H04N19/593 ,  H04N19/157 ,  H04N19/182

    Abstract: An image coding method and apparatus and an image decoding method and apparatus are provided by the present document. The image coding method includes: implementing matching coding for pixels of an input video image to obtain one or more matching relationship parameters, herein the matching relationship parameters are parameters used in a process of constructing predicted values and/or reconstructed values of the pixels in the image; mapping the matching relationship parameters to obtain mapped values of the matching relationship parameters; and performing entropy coding on the mapped values of the matching relationship parameters. The present document addresses the problem existing in the conventional art which is caused by the direct implementation of entropy coding for matching relationship parameters and achieves a good data compression effect through entropy coding.

    MEDIA DATA PROCESSING METHOD, APPARATUS AND SYSTEM
    13.
    发明申请
    MEDIA DATA PROCESSING METHOD, APPARATUS AND SYSTEM 审中-公开

    公开(公告)号：US20200322645A1

    公开(公告)日：2020-10-08

    申请号：US16301929

    申请日：2017-03-10

    Applicant: ZTE CORPORATION

    Inventor： Ming Li ,  Qiaozhou Lin ,  Guoqiang Shang ,  Zhao Wu ,  Shengtao Yu ,  Cheolkon Jung

    IPC: H04N19/98 ,  G09G5/10 ,  G09G5/00 ,  H04N19/85 ,  H04N19/70 ,  H04B10/079 ,  G09G3/34

    Abstract: Several embodiments of the present invention are described for a media data processing method, apparatus and system. An example method comprises: obtaining an optical signal of a sampling point by a collection device at the source end in an acquisition of media data; according to an opto-electronic transfer control parameter, performing opto-electronic transfer for the optical signal of the sampling point to obtain a transferred electrical signal, wherein the opto-electronic transfer control parameter is determined on the basis of an optical signal intensity of the optical signal of the sampling point; and encoding the electrical signal and opto-electronic transfer control parameter to obtain a bitstream. According to the embodiment of the present invention, the problem of the lower accuracy in the media data processing is solved, thereby obtaining the effect of improving the accuracy in the media data processing.

    Media data processing method, apparatus and system
    16.
    发明授权
    Media data processing method, apparatus and system 有权

    公开(公告)号：US12108091B2

    公开(公告)日：2024-10-01

    申请号：US17493759

    申请日：2021-10-04

    Applicant: ZTE CORPORATION

    Inventor： Cheolkon Jung ,  Qiaozhou Lin ,  Shengtao Yu ,  Ming Li ,  Guoqiang Shang ,  Zhao Wu

    IPC: H04N19/98 ,  H04N5/57 ,  H04N19/124 ,  H04N19/172 ,  H04N19/70

    CPC classification number: H04N19/98 ,  H04N5/57 ,  H04N19/124 ,  H04N19/172 ,  H04N19/70

    Abstract: Provided in embodiments of the present disclosure are a media data processing method, an apparatus and a system. The method comprises: obtaining an optical signal of a sampling point by a collection device at the source end in an acquisition of media data; acquiring an optical signal intensity of the optical signal of the sampling point and a display brightness of a display device at destination end; determining an opto-electronic transfer control parameter according to the optical signal intensity of the optical signal of the sampling point and the display brightness; performing opto-electronic transfer on the optical signal of the sampling point according to the opto-electronic transfer control parameter to obtain a transferred electrical signal; and encoding the electrical signal and the opto-electronic transfer control parameter to obtain a bitstream.

    Rank information in immersive media processing
    17.
    发明授权
    Rank information in immersive media processing 有权

    公开(公告)号：US12100116B2

    公开(公告)日：2024-09-24

    申请号：US17811170

    申请日：2022-07-07

    Applicant: ZTE Corporation

    Inventor： Zhao Wu ,  Ping Wu

    IPC: G06T3/16 ,  G06T9/00 ,  H04L65/80 ,  H04N19/20

    CPC classification number: G06T3/16 ,  G06T9/00 ,  H04L65/80 ,  H04N19/20

    Abstract: Methods, apparatus, and systems for providing consistent immersive media viewing experiences to user while reducing bandwidth consumption are disclosed. In one example aspect, a method for processing multimedia content includes determining, for a conversion between a frame of panoramic media content comprising multiple segments and a bitstream representation of the frame of panoramic media content, multiple sets of rank information associated with the frame. Each set of the rank information indicates a priority level for processing a segment of the frame of panoramic media content. The method also includes performing the conversion based on the multiple sets of rank information.

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