公开(公告)号：US20230232036A1

公开(公告)日：2023-07-20

申请号：US17994556

申请日：2022-11-28

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Xiang MA ,  Haitao YANG ,  Huanbang CHEN ,  Shan GAO

IPC: H04N19/52 ,  H04N19/176 ,  H04N19/182

CPC classification number: H04N19/52 ,  H04N19/176 ,  H04N19/182

Abstract: A picture prediction method is provided, which includes: obtaining initial motion information of a current picture block; determining, based on a matching cost criterion, that positions of a pair of reference blocks are a position of a target forward reference block of the current picture block and a position of a target backward reference block of the current picture block, where positions of each pair of reference blocks include a position of a forward reference block and a position of a backward reference block; and for the positions of each pair of reference blocks, a first position offset and a second position offset are in a mirror relationship; and obtaining a predicted value of a pixel value of the current picture block based on a pixel value of the target forward reference block and a pixel value of the target backward reference block.

公开(公告)号：US20220159292A1

公开(公告)日：2022-05-19

申请号：US17590580

申请日：2022-02-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huanbang CHEN ,  Sixin LIN ,  Haitao YANG ,  Shan GAO

IPC: H04N19/52 ,  H04N19/86 ,  H04N19/139 ,  H04N19/176 ,  H04N19/117 ,  H04N19/583 ,  H04N19/119 ,  H04N19/61 ,  H04N19/43

Abstract: The present invention relates to the field of video image processing, and provides a filtering method and an apparatus, to resolve a problem that subjective quality and objective quality of an image deteriorate because filtering processing cannot be performed on internal blocks of a non-translational motion prediction unit.

公开(公告)号：US20210044839A1

公开(公告)日：2021-02-11

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

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.

公开(公告)号：US20200252645A1

公开(公告)日：2020-08-06

申请号：US16858222

申请日：2020-04-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huanbang CHEN ,  Haitao YANG ,  Shan GAO ,  Jiantong ZHOU ,  Shan LIU

IPC: H04N19/52 ,  H04N19/61 ,  H04N19/82

Abstract: A method includes obtaining a first motion vector of a motion compensation unit included in an affine code block. The method also includes determining a second motion vector based on the first motion vector, where a precision of the second motion vector matches a motion vector precision of a storage unit corresponding to the motion compensation unit. The method further includes determining a third motion vector based on the second motion vector, where there is a preset correspondence between the third motion vector and the second motion vector, and the third motion vector is used for subsequent encoding/decoding processing.

公开(公告)号：US20180191998A1

公开(公告)日：2018-07-05

申请号：US15906470

申请日：2018-02-27

Applicant: Huawei Technologies Co., Ltd. ,  Fraunhofor-Gesellschaft Zur Forderung Der Angewand Der Angewandten Forschung E.V.

Inventor： Michael REINHARDT ,  Oliver SCHREER ,  Ingo FELDMANN ,  Shan GAO ,  Jun YAO

IPC: H04N7/14 ,  H04N7/15 ,  H04L29/06

CPC classification number: H04N7/144 ,  H04L65/403 ,  H04N7/15

Abstract: The present disclosure provide a video communication method and system, applied to a scenario of video communication between a first location and a second location, and at least two users at the second location participate in the video communication. The method includes: determining a first user and a second user that are in a call or that are going to have a call with each other; obtaining an eye-to-eye virtual view image of the first user; and displaying the eye-to-eye virtual view image of the first user on a display at the second location in a manner used for corresponding to the second user, so that the eye-to-eye virtual view image of the first user corresponds to the second user.

公开(公告)号：US20160301926A1

公开(公告)日：2016-10-13

申请号：US15188611

申请日：2016-06-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shan GAO ,  Lina SUN ,  Qingpeng XIE

IPC: H04N17/00 ,  H04N21/24 ,  H04N19/154

CPC classification number: H04N17/004 ,  H04N19/154 ,  H04N21/2402

Abstract: Embodiments of the present invention provide a multimedia quality monitoring method, and a device. The method includes: determining reference quality of multimedia according to reference video quality and reference audio quality of the multimedia; acquiring multimedia distortion quality that is after video distortion and/or audio distortion of the multimedia occur/occurs; and determining quality of the multimedia according to the reference quality of the multimedia and the multimedia distortion quality. Therefore, accuracy of a multimedia quality monitoring result is improved.

公开(公告)号：US20150003530A1

公开(公告)日：2015-01-01

申请号：US14469953

申请日：2014-08-27

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Shan GAO ,  Lei ZHANG ,  Lina SUN

IPC: H04N19/89 ,  H04N19/172 ,  H04N19/105

CPC classification number: H04N19/89 ,  H04L43/0835 ,  H04N17/004 ,  H04N19/103 ,  H04N19/115 ,  H04N19/61 ,  H04N19/85 ,  H04N21/44008 ,  H04N21/6437

Abstract: Embodiments of the present invention provide frame type detection and frame size detection methods and apparatuses for a video stream. The video frame type detection method includes: obtaining a size of a current video frame; obtaining a change feature value of the current video frame; obtaining an I-frame threshold of the current video frame; and determining whether the previous first video frame is an I frame according to the change feature value of the current video frame and a change feature value of the previous first video frame, the I-frame threshold of the current video frame, and the size of the current video frame, the size of the previous first video frame, and a size of a previous second video frame. The present invention provides a complete and effective frame type detection method; in addition, impact of a video frame rate is fully considered.

Abstract translation: 本发明的实施例提供了用于视频流的帧类型检测和帧大小检测方法和装置。 视频帧类型检测方法包括：获得当前视频帧的大小; 获取当前视频帧的改变特征值; 获得当前视频帧的I帧阈值; 以及根据当前视频帧的变化特征值和前一个第一视频帧的改变特征值，当前视频帧的I帧阈值以及当前视频帧的I帧阈值来确定先前的第一视频帧是否是I帧 当前视频帧，先前第一视频帧的大小，以及之前的第二视频帧的大小。 本发明提供一种完整且有效的帧类型检测方法; 另外，视频帧速率的影响也被充分考虑。