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    Inter prediction method and apparatus, and terminal device
    11.
    发明授权
    Inter prediction method and apparatus, and terminal device 有权

    公开(公告)号：US11290724B2

    公开(公告)日：2022-03-29

    申请号：US16894268

    申请日：2020-06-05

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Shan Gao ,  Weiwei Xu ,  Huanbang Chen ,  Haitao Yang

    IPC: H04N19/139 ,  H04N19/176 ,  H04N19/56 ,  H04N19/573

    Abstract: An inter prediction method includes parsing, by a processor, a bitstream to obtain a location of a target adjacent image block of a current image block. The method further includes obtaining a preset correspondence between an adjacent image block location and a motion vector precision, wherein in the preset correspondence, locations of at least two adjacent image blocks correspond to different motion vector precisions. The method further includes determining, based on the location of the target adjacent image block and the preset correspondence, a target motion vector precision corresponding to the target adjacent image block. The method further includes determining a motion vector predictor of the current image block based on the location of the target adjacent image block and the target motion vector precision.

    Encoding method and apparatus and decoding method and apparatus
    13.
    发明授权
    Encoding method and apparatus and decoding method and apparatus 有权

    公开(公告)号：US11245932B2

    公开(公告)日：2022-02-08

    申请号：US17066936

    申请日：2020-10-09

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Zhao Wang ,  Siwei Ma ,  Shan Gao ,  Haitao Yang

    IPC: H04N19/96 ,  H04N19/176 ,  H04N19/119 ,  H04N19/157 ,  H04N19/167

    Abstract: A decoding method includes: parsing a data stream, and if partitioning an image block with a size of 2N×2N using a quadtree partition pattern is allowed, processing a 2N×N first subimage block and a 2N×N second subimage block or an N×2N first subimage block and an N×2N second subimage block in a constraint subimage processing mode, wherein an image block partition pattern obtained for the partitioned second subimage block and the partitioned first subimage block is different from an image block partition pattern obtained after the 2N×2N image block is partitioned using the quadtree partition pattern, where the 2N×N first subimage block and the 2N×N second subimage block or the N×2N first subimage block and the N×2N second subimage block are obtained by partitioning the image block with the size of 2N×2N.

    Encoding method and apparatus and decoding method and apparatus
    15.
    发明授权
    Encoding method and apparatus and decoding method and apparatus 有权

    公开(公告)号：US10812835B2

    公开(公告)日：2020-10-20

    申请号：US16233932

    申请日：2018-12-27

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Zhao Wang ,  Siwei Ma ,  Shan Gao ,  Haitao Yang

    IPC: H04N19/96 ,  H04N19/176 ,  H04N19/119 ,  H04N19/157 ,  H04N19/167

    Abstract: A decoding method includes: parsing a data stream, and if partitioning an image block with a size of 2N×2N using a quadtree partition pattern is allowed, processing a 2N×N first subimage block and a 2N×2N second subimage block or an N×2N first subimage block and an N×2N second subimage block in a constraint subimage processing mode, wherein an image block partition pattern obtained for the partitioned second subimage block and the partitioned first subimage block is different from an image block partition pattern obtained after the 2N×2N image block is partitioned using the quadtree partition pattern, where the 2N×N first subimage block and the 2N×N second subimage block or the N×2N first subimage block and the N×2N second subimage block are obtained by partitioning the image block with the size of 2N×2N.

    IMAGE ENCODING/DECODING METHOD, VIDEO ENCODER/DECODER, AND VIDEO CODING/DECODING SYSTEM
    16.
    发明申请
    IMAGE ENCODING/DECODING METHOD, VIDEO ENCODER/DECODER, AND VIDEO CODING/DECODING SYSTEM 审中-公开

    公开(公告)号：US20200021831A1

    公开(公告)日：2020-01-16

    申请号：US16584141

    申请日：2019-09-26

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Yin Zhao ,  Haitao Yang ,  Shan Gao

    IPC: H04N19/44 ,  H04N19/96 ,  H04N19/192 ,  G06F9/30

    Abstract: This application relates to video coding/decoding technologies, and discloses an image decoding method, a video decoder, an image encoding method, a video encoder, and a video coding/decoding system. The image decoding method includes: obtaining information about a first leaf node obtained by splitting a coding tree unit serving as a root node; when the information about the first leaf node meets a split condition, obtaining split instruction information of the first leaf node; when the split instruction information of the first leaf node is used to instruct to split the first leaf node, obtaining encoding information corresponding to a second leaf node obtained by splitting the first leaf node serving as a root node; and generating, based on the encoding information corresponding to the second leaf node, a reconstructed image corresponding to the second leaf node.

    IMAGE REGISTRATION METHOD AND APPARATUS
    19.
    发明申请
    IMAGE REGISTRATION METHOD AND APPARATUS 审中-公开
    图像注册方法和设备

    公开(公告)号：US20160203607A1

    公开(公告)日：2016-07-14

    申请号：US14981571

    申请日：2015-12-28

    Applicant: Huawei Technologies Co., Ltd. ,  Fraunhofer-Gesellschaft Zur Föderung Der Angewandten Forschung E.V.

    Inventor： Marcus Müller ,  Christian Riechert ,  Ingo Feldmann ,  Shan Gao ,  Yadong Lu

    IPC: G06T7/00 ,  G01B11/00

    CPC classification number: G01B11/002 ,  G06T7/80 ,  G06T2207/10052 ,  G06T2207/20021 ,  G06T2207/30244 ,  H04N5/247 ,  H04N13/243 ,  H04N13/246

    Abstract: The present disclosure discloses an image registration method and apparatus. The method includes: determining a target plane; orthogonally projecting the optical center of each of the cameras in the planar camera array onto the target plane, to obtain a projected point of the optical center of each of the cameras; generating a rectangular grid on the target plane according to the projected points of the optical centers of the cameras in the planar camera array; obtaining a target grid point of each of the cameras according to the rectangular grid; determining a target camera coordinate system of each of the cameras; and registering, images collected by the cameras in the planar camera array. In embodiments of the present disclosure a target camera coordinate system of a camera is determined again, thereby greatly reducing complexity of subsequent image registration.

    Abstract translation: 本公开公开了一种图像配准方法和装置。 该方法包括：确定目标平面; 将平面摄像机阵列中的每个摄像机的光学中心正交投影到目标平面上，以获得每个摄像机的光学中心的投影点; 根据平面相机阵列中的相机的光学中心的投影点，在目标平面上产生矩形网格; 根据矩形网格获得每个摄像机的目标网格点; 确定每个摄像机的目标摄像机坐标系; 并将由相机收集的图像登记在平面相机阵列中。 在本公开的实施例中，再次确定摄像机的目标摄像机坐标系，从而大大降低后续图像配准的复杂性。

    Buffer state estimation method and device
    20.
    发明授权
    Buffer state estimation method and device 有权
    缓冲状态估计方法和装置

    公开(公告)号：US09392247B2

    公开(公告)日：2016-07-12

    申请号：US14196997

    申请日：2014-03-04

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Bing Chen ,  Shan Gao

    IPC: G06F15/16 ,  H04W72/04 ,  H04N9/87 ,  H04N21/24 ,  H04N21/44 ,  H04N5/76

    CPC classification number: H04N9/87 ,  H04N5/76 ,  H04N21/2401 ,  H04N21/44004

    Abstract: Embodiments of the present invention provide a buffer state estimation method and device. The method includes: obtaining a first continuous play duration corresponding to media data received by a terminal in a period of the present state estimation; calculating a second continuous play duration corresponding to media data in a current buffer according to a buffer state before the present state estimation and the first continuous play duration; and performing state estimation on the buffer according to the buffer state before the present state estimation, preset buffer configuration parameters and the second continuous play duration, and obtaining the present buffer state and start time and duration of the present buffer state, where the buffer state includes at least one of an initial buffering state, a normal play state, a rebuffering state, a play stop state and a play pause state.

    Abstract translation: 本发明的实施例提供一种缓冲状态估计方法和装置。 该方法包括：在当前状态估计的周期内获得对应于由终端接收的媒体数据的第一连续播放持续时间; 根据当前状态估计和第一连续播放持续时间之前的缓冲状态，计算与当前缓冲器中的媒体数据相对应的第二连续播放持续时间; 以及根据当前状态估计之前的缓冲状态，预设缓冲器配置参数和第二连续播放持续时间对缓冲器执行状态估计，并获得当前缓冲状态的当前缓冲状态和当前缓冲状态的开始时间和持续时间，其中缓冲状态 包括初始缓冲状态，正常播放状态，重新接受状态，播放停止状态和播放暂停状态中的至少一个。

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