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    Method for dividing prediction block, encoding device, and decoding device
    1.
    发明授权
    Method for dividing prediction block, encoding device, and decoding device 有权

    公开(公告)号：US10834398B2

    公开(公告)日：2020-11-10

    申请号：US16263779

    申请日：2019-01-31

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Xiaozhen Zheng

    IPC: H04N19/119 ,  H04N19/162 ,  H04N19/139 ,  H04N19/176

    Abstract: A method for dividing a prediction block, an encoding device, and a decoding device, where the method includes acquiring a manner of division into the prediction block, where the manner of division into the prediction block is a horizontal division manner, a vertical division manner, or a square division manner, determining a horizontal division size and a vertical division size according to the manner of division into the prediction block, and dividing the prediction block into at least one prediction subblock according to the horizontal division size and the vertical division size.

    Image encoding method, image decoding method, encoding device, and decoding device
    2.
    发明授权
    Image encoding method, image decoding method, encoding device, and decoding device 有权

    公开(公告)号：US10609389B2

    公开(公告)日：2020-03-31

    申请号：US15836827

    申请日：2017-12-09

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Xiaozhen Zheng ,  Jianhua Zheng ,  Hai Chen ,  Meng Li

    IPC: G06T5/00 ,  H04N19/176 ,  H04N19/593 ,  H04N19/463 ,  H04N19/85 ,  H04N19/124 ,  H04N19/12 ,  H04N19/167 ,  H04N19/46

    Abstract: Embodiments of the present disclosure provide an image encoding method, an image decoding method, an encoding device, and a decoding device. The method includes: determining a conversion function parameter of a current image block; determining a conversion function parameter of a neighboring image block corresponding to the current image block; determining, according to a correlation between the conversion function parameter of the current image block and the conversion function parameter of the neighboring image block, whether to perform merge encoding on the conversion function parameter of the current image block and the conversion function parameter of the neighboring image block, and determining a first indicator, where the first indicator is used to indicate whether to perform merge encoding on the conversion function parameter of the current image block and the conversion function parameter of the neighboring image block; and encoding the first indicator.

    Method and device for determining transform block size
    3.
    发明授权
    Method and device for determining transform block size 有权

    公开(公告)号：US10542256B2

    公开(公告)日：2020-01-21

    申请号：US15656899

    申请日：2017-07-21

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

    Inventor： Yuan Yuan ,  Xiaozhen Zheng ,  Yun He

    IPC: H04N11/02 ,  H04N19/119 ,  H04N19/122 ,  H04N19/61 ,  H04N19/60 ,  H04N19/96 ,  H04N19/176

    Abstract: Embodiments of the present invention provide a method and a device for determining a transform block size, and can improve image compression efficiency. The method includes: obtaining, according to image block information and a splitting manner of an image block, a parameter of a transform block corresponding to the image block; and obtaining a transform block size according to the parameter of the transform block and the splitting manner of the image block. In the embodiments of the present invention, during determination of a transform block size, the transform block size is obtained according to a splitting manner of an image block and a parameter of a transform block corresponding to the image block. Therefore, a transform block matching the splitting manner of the image block can be used, improving image compression efficiency.

    METHODS AND APPARATUSES FOR CODING AND DECODING DEPTH MAP
    7.
    发明申请
    METHODS AND APPARATUSES FOR CODING AND DECODING DEPTH MAP 审中-公开
    编码和解码深度图的方法和装置

    公开(公告)号：US20160037185A1

    公开(公告)日：2016-02-04

    申请号：US14880094

    申请日：2015-10-09

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Xiaozhen Zheng

    IPC: H04N19/61 ,  H04N19/182 ,  H04N19/159 ,  H04N19/50

    Abstract: Embodiments of the present invention provide methods and devices for coding and decoding a depth map, including: determining to perform simplified depth coding (SDC) decoding according to a flag of an SDC mode; determining a size of an image block and a maximum prediction size; determining an intra-frame prediction mode; in a case in which the size of the image block is greater than the maximum prediction size, splitting the image block to obtain N split image blocks; and performing the SDC decoding on the N split image blocks by using the intra-frame prediction mode. In this way, processing efficiency of coding and decoding a depth map can be improved.

    Abstract translation: 本发明的实施例提供了用于对深度图进行编码和解码的方法和装置，包括：根据SDC模式的标志确定执行简化深度编码（SDC）解码; 确定图像块的大小和最大预测大小; 确定帧内预测模式; 在图像块的尺寸大于最大预测尺寸的情况下，分割图像块以获得N个分割图像块; 以及通过使用帧内预测模式对N个分割图像块执行SDC解码。 以这种方式，可以提高深度图的编码和解码的处理效率。

    Method and Module for Acquiring Position Information of Transform Block
    8.
    发明申请
    Method and Module for Acquiring Position Information of Transform Block 有权
    用于获取变换块位置信息的方法和模块

    公开(公告)号：US20140079332A1

    公开(公告)日：2014-03-20

    申请号：US14082313

    申请日：2013-11-18

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Xiaozhen Zheng

    IPC: G06T9/00

    CPC classification number: H04N19/176 ,  G06T9/007 ,  H04N19/119 ,  H04N19/122 ,  H04N19/136 ,  H04N19/46 ,  H04N19/50 ,  H04N19/61 ,  H04N19/96

    Abstract: An embodiment of the present invention provides a method for acquiring position information of a transform block. The method includes: obtaining a splitting manner of an image block; obtaining splitting direction information according to the splitting manner of the image block and a splitting layer number of a transform block, or obtaining splitting direction information according to the splitting manner of the image block and a numerical relationship between a width and a height of a transform block; and obtaining position information of a post-splitting transform block according to the splitting direction information. In embodiments of the present invention, splitting direction information is obtained directly according to a splitting manner of an image block and a layer number, and then, size information of a transform block is coded according to the splitting direction information, thereby effectively reducing complexity of a coding process.

    Abstract translation: 本发明的实施例提供一种用于获取变换块的位置信息的方法。 该方法包括：获得图像块的分割方式; 根据图像块的分割方式和变换块的分割层数获得分割方向信息，或者根据图像块的分割方式获得分割方向信息，以及变换的宽度和高度之间的数值关系 块; 以及根据分割方向信息获取分解后变换块的位置信息。 在本发明的实施例中，根据图像块和层号的分割方式直接获取分割方向信息，然后根据分割方向信息对变换块的大小信息进行编码，从而有效降低复杂度 编码过程。

    Method and Device for Coding and Decoding Images
    9.
    发明申请
    Method and Device for Coding and Decoding Images 有权
    用于编码和解码图像的方法和装置

    公开(公告)号：US20130301716A1

    公开(公告)日：2013-11-14

    申请号：US13945541

    申请日：2013-07-18

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Xiaozhen Zheng ,  Haoping Yu

    IPC: H04N7/26

    CPC classification number: H04N19/20 ,  H04N19/119 ,  H04N19/46 ,  H04N19/463 ,  H04N19/537 ,  H04N19/543 ,  H04N19/70

    Abstract: A method and a device for coding and decoding images are disclosed. The method for coding images includes: determining a second length according to a direction of a division line, a scale value, and a position parameter value; determining a division mode of the image block according to the direction of the division line, a first length, the second length, and the scale value; coding the image block according to the division mode of the image block; and coding a direction parameter value, the scale value, and the position parameter value. With the technical solution provided in the embodiments of the present invention, the determining of the division mode of the image block on the image coder is simplified.

    Abstract translation: 公开了一种用于编码和解码图像的方法和装置。 图像编码方法包括：根据划分线的方向，比例值和位置参数值确定第二长度; 根据分割线的方向确定图像块的分割模式，第一长度，第二长度和比例值; 根据图像块的分割模式对图像块进行编码; 编码方向参数值，比例值和位置参数值。 利用本发明的实施例提供的技术方案，简化了图像编码器上的图像块的划分模式的确定。

    Image Encoding and Decoding Methods and Related Devices
    10.
    发明申请
    Image Encoding and Decoding Methods and Related Devices 有权

    公开(公告)号：US20130216147A1

    公开(公告)日：2013-08-22

    申请号：US13848308

    申请日：2013-03-21

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Haoping Yu ,  Xiaozhen Zheng ,  Sixin Lin ,  Jiantong Zhou

    IPC: G06T9/00

    CPC classification number: G06T9/004 ,  G06T9/00 ,  H04N19/119 ,  H04N19/172 ,  H04N19/46 ,  H04N19/537

    Abstract: Image encoding and decoding methods and related devices are provided. An image encoding and decoding method includes: for a sub-image block obtained by partitioning an image block, determining at least two position parameters, in which the at least two position parameters include a first position parameter and a second position parameter, the first position parameter identifies whether the sub-image block is a rectangle or not a rectangle, and the second position parameter identifies endpoint information of the sub-image block; determining an encoding sequence of the first position parameter and the second position parameter according to a partition manner of the image block; and encoding the at least two position parameters according to the determined encoding sequence.

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