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    METHOD AND DEVICE FOR VIDEO CODING AND DECODING
    11.
    发明申请
    METHOD AND DEVICE FOR VIDEO CODING AND DECODING 审中-公开
    用于视频编码和解码的方法和设备

    公开(公告)号：US20140341278A1

    公开(公告)日：2014-11-20

    申请号：US14451083

    申请日：2014-08-04

    Applicant: Huawei Technologies Co., Ltd. ,  Tsinghua University

    Inventor： Xiaozhen ZHENG ,  Zhen MAO ,  Ziyuan WANG ,  Yun HE ,  Xiaozhong XU ,  Jianhua ZHENG

    IPC: H04N19/174 ,  H04N19/70 ,  H04N19/126

    CPC classification number: H04N19/126 ,  H04N19/17 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/184 ,  H04N19/436 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70

    Abstract: A method and device for coding and decoding are disclosed. The method includes: dividing a picture to be encoded into several slices, each containing macroblocks continuous in a designated scanning sequence in the picture; dividing slices in the picture into one or more slice sets according to attribute information of the slices, each slice set containing one or more slices; and encoding the slices in the slice sets according to slice and slice set division information to get a coded bit stream of the picture. The decoding method includes: obtaining slice and slice set division information from a bit stream to be decoded and decoding the bit stream according to the obtained slice and slice set division information. The invention improves the performance of video transmission effectively and realizes region based coding. The implementation of coding and decoding is simple and the complexity of coding and decoding systems is reduced.

    Abstract translation: 公开了一种用于编码和解码的方法和装置。 该方法包括：将要编码的图像划分成若干片，每片包含图像中指定的扫描序列连续的宏块; 根据切片的属性信息将图片中的切片分成一个或多个切片组，每个切片组包含一个或多个切片; 并根据切片和切片集分割信息对切片集中的切片进行编码以获得图像的编码比特流。 解码方法包括：从要解码的比特流获取切片和切片集分割信息，并根据获得的切片和切片集分割信息对比特流进行解码。 本发明有效地提高了视频传输的性能，实现了基于区域的编码。 编码和解码的实现简单，编码和解码系统的复杂度降低。

    PICTURE ENCODING AND DECODING METHOD, PICTURE ENCODING AND DECODING DEVICE AND NETWORK SYSTEM
    12.
    发明申请
    PICTURE ENCODING AND DECODING METHOD, PICTURE ENCODING AND DECODING DEVICE AND NETWORK SYSTEM 有权
    图像编码和解码方法，图像编码和解码设备和网络系统

    公开(公告)号：US20140010469A1

    公开(公告)日：2014-01-09

    申请号：US14026682

    申请日：2013-09-13

    Applicant: Huawei Technologies Co., Ltd. ,  Tsinghua University

    Inventor： Yuan YUAN ,  Xiaozhen ZHENG ,  Lingzhi LIU ,  Yunfei WANG ,  Xiaoran CAO ,  Yun HE

    IPC: H04N7/50

    CPC classification number: H04N19/61 ,  H04N19/122 ,  H04N19/157 ,  H04N19/176 ,  H04N19/46

    Abstract: A picture encoding and decoding method, a picture encoding and decoding device and a network system are provided, in which, the picture encoding method includes: determining a prediction block used by a picture block according to a division manner of the picture block; determining a corresponding division level in the picture block or the prediction block of transform blocks corresponding to the picture block or the prediction block, in which, the transform blocks corresponding to the picture block or the prediction block include one or more transform blocks; determining a size of the transform blocks corresponding to the picture block or the prediction block according to the division manner of the picture block and the division level; determining identification information for identifying the division level corresponding to the transform blocks corresponding to the picture block or the prediction block; and writing the identification information into a code stream.

    Abstract translation: 提供了图像编码和解码方法，图像编码和解码装置以及网络系统，其中图像编码方法包括：根据图像块的分割方式确定图像块使用的预测块; 确定对应于图像块或预测块的图像块或变换块的预测块中的对应分割电平，其中对应于图像块或预测块的变换块包括一个或多个变换块; 根据图像块的分割方式和划分级别确定与图像块或预测块相对应的变换块的大小; 确定用于识别与对应于图像块或预测块的变换块相对应的分割电平的识别信息; 并将识别信息写入代码流。

    METHOD AND DEVICE FOR VIDEO CODING AND DECODING
    13.
    发明申请
    METHOD AND DEVICE FOR VIDEO CODING AND DECODING 审中-公开

    公开(公告)号：US20200014927A1

    公开(公告)日：2020-01-09

    申请号：US16573148

    申请日：2019-09-17

    Applicant: HUAWEI TECHNOLOGIES CO.,LTD. ,  TSINGHUA UNIVERSITY

    Inventor： Xiaozhen ZHENG ,  Zhen MAO ,  Ziyuan WANG ,  Yun HE ,  Xiaozhong XU ,  Jianhua ZHENG

    IPC: H04N19/126 ,  H04N19/17 ,  H04N19/174 ,  H04N19/436 ,  H04N19/61 ,  H04N19/70 ,  H04N19/46

    Abstract: A method and device for coding and decoding are disclosed. The method includes: dividing a picture to be encoded into several slices, each containing macroblocks continuous in a designated scanning sequence in the picture; dividing slices in the picture into one or more slice sets according to attribute information of the slices, each slice set containing one or more slices; and encoding the slices in the slice sets according to slice and slice set division information to get a coded bit stream of the picture. The decoding method includes: obtaining slice and slice set division information from a bit stream to be decoded and decoding the bit stream according to the obtained slice and slice set division information. The invention improves the performance of video transmission effectively and realizes region based coding. The implementation of coding and decoding is simple and the complexity of coding and decoding systems is reduced.

    VIDEO ENCODING METHOD, VIDEO DECODING METHOD, VIDEO ENCODER, AND VIDEO DECODER
    18.
    发明申请
    VIDEO ENCODING METHOD, VIDEO DECODING METHOD, VIDEO ENCODER, AND VIDEO DECODER 审中-公开

    公开(公告)号：US20180103258A1

    公开(公告)日：2018-04-12

    申请号：US15835771

    申请日：2017-12-08

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Hai CHEN ,  Meng LI ,  Xiaozhen ZHENG ,  Jianhua ZHENG

    IPC: H04N19/186 ,  H04N19/196 ,  H04N19/182 ,  H04N19/124

    CPC classification number: H04N19/186 ,  H04N19/124 ,  H04N19/176 ,  H04N19/182 ,  H04N19/196 ,  H04N19/46 ,  H04N19/98

    Abstract: Embodiments of the present disclosure provide a video encoding method, a video decoding method, a video encoder, and a video decoder. The video encoding method includes: obtaining a to-be-encoded HDR image frame, where the HDR image frame includes multiple image blocks; determining, in multiple preset optical-electro transfer functions according to a statistical luminance value of each of the multiple image blocks, an optical-electro transfer function corresponding to the image block; performing optical-to-electrical conversion on the image block according to the optical-electro transfer function corresponding to the image block; and encoding the multiple image blocks on which the optical-to-electrical conversion has been performed. According to the embodiments of the present disclosure, one corresponding optical-electro transfer function is set for each image block, so as to improve a video encoding effect and better adapt to an existing video encoding framework.

    VIDEO CODING AND DECODING METHODS AND APPARATUSES
    19.
    发明申请
    VIDEO CODING AND DECODING METHODS AND APPARATUSES 审中-公开

    公开(公告)号：US20160330476A1

    公开(公告)日：2016-11-10

    申请号：US15217334

    申请日：2016-07-22

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Xiaozhen ZHENG

    IPC: H04N19/583 ,  H04N19/91 ,  H04N19/119 ,  H04N19/176

    CPC classification number: H04N19/583 ,  H04N19/119 ,  H04N19/176 ,  H04N19/196 ,  H04N19/463 ,  H04N19/593 ,  H04N19/91

    Abstract: A coding method includes: partitioning an image block to be decoded irregularly according to an irregular partitioning mode and a position parameter to obtain at least two different sub-blocks; comparing the sub-blocks with a reference sub-block to obtain a residual of a pixel value of the image block to be coded; obtaining a reference position parameter according to a surrounding block of the image block to be coded, and subtracting the reference position parameter from the position parameter of the image block to be coded to obtain a position parameter difference of the image block to be coded; quantizing the residual, and performing entropy coding on a result of the quantization, the motion vector information, and the position parameter difference; and writing the entropy coding result and partitioning mode information of the image block into a code stream.

    METHOD AND APPARATUS FOR PROCESSING INTRA PREDICTION MODE
    20.
    发明申请
    METHOD AND APPARATUS FOR PROCESSING INTRA PREDICTION MODE 有权

    公开(公告)号：US20210168399A1

    公开(公告)日：2021-06-03

    申请号：US17121263

    申请日：2020-12-14

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yongbing LIN ,  Xiaozhen ZHENG

    IPC: H04N19/593 ,  H04N19/176 ,  H04N19/11 ,  H04N19/196

    Abstract: A method for processing an intra prediction mode includes: determining whether an intra prediction mode of each neighboring block in multiple neighboring blocks of a current block is applicable to the current block; and obtaining multiple mapped intra prediction modes of the current block according to a result of the determining, if it is determined that an intra prediction mode of a neighboring block is applicable to the current block, setting the intra prediction mode of the neighboring block as a mapped intra prediction mode of the current block, and if it is determined that the intra prediction mode of the neighboring block is not applicable to the current block, setting a specific intra prediction mode as the mapped intra prediction mode of the current block.

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