公开(公告)号：US20240233075A9

公开(公告)日：2024-07-11

申请号：US18400522

申请日：2023-12-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yin ZHAO ,  Jue MAO ,  Haitao YANG

IPC: G06T3/4046 ,  G06T7/60

CPC classification number: G06T3/4046 ,  G06T7/60 ,  G06T2207/20081 ,  G06T2207/20084

Abstract: This application relates to the field of artificial intelligence technologies, and provides a feature map processing method and a related device. The method is implemented by invoking a neural network model that includes a plurality of input adaptation branches and a post-processing part. An output of each of the plurality of input adaptation branches is an input of the post-processing part, and each of the plurality of input adaptation branches can downsample a feature map at a different ratio.

公开(公告)号：US20240205419A1

公开(公告)日：2024-06-20

申请号：US18430963

申请日：2024-02-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yin ZHAO ,  Haitao YANG ,  Riyang ZHAO ,  Zhongliang LI ,  Lian ZHANG

IPC: H04N19/159 ,  H04N19/119 ,  H04N19/176 ,  H04N19/186

CPC classification number: H04N19/159 ,  H04N19/119 ,  H04N19/176 ,  H04N19/186

Abstract: Embodiments of this application disclose a picture reconstruction method and apparatus for a video picture. The picture reconstruction method includes: obtaining a prediction mode of a current coding unit, and/or obtaining a prediction partition mode of the current coding unit, where the current coding unit includes a luma coding block and a chroma coding block, and the prediction partition mode is a mode of splitting the current coding unit into prediction blocks or prediction units; obtaining a transform block of the current coding unit based on the prediction partition mode and/or the prediction mode; and generating a reconstructed picture block of the current coding unit based on the transform block. According to the method in the embodiments of this application, video coding efficiency can be improved.

公开(公告)号：US20240187638A1

公开(公告)日：2024-06-06

申请号：US18494259

申请日：2023-10-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Sixin LIN ,  Ruopu HUANG ,  Haitao YANG

IPC: H04N19/52 ,  H04N19/159 ,  H04N19/176 ,  H04N19/513 ,  H04N19/523 ,  H04N19/537 ,  H04N19/56

CPC classification number: H04N19/52 ,  H04N19/159 ,  H04N19/176 ,  H04N19/513 ,  H04N19/523 ,  H04N19/537 ,  H04N19/56

Abstract: A picture prediction method includes: determining motion vectors of W control points in a current picture block; obtaining motion vectors of P pixel units of the current picture block by using a motion model and the motion vectors of the W control points, where precision of the determined motion vectors of the W control points is 1/n of pixel precision, precision of the motion vector of each of the P pixel units is 1/N of the pixel precision, the motion vector of each of the P pixel units is used to determine a corresponding reference pixel unit in a reference picture of a corresponding pixel unit; and performing interpolation filtering on a pixel of the corresponding reference pixel unit by using an interpolation filter with a phase of Q, to obtain a predicted pixel value of each of the P pixel units.

公开(公告)号：US20240171765A1

公开(公告)日：2024-05-23

申请号：US18416294

申请日：2024-01-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huanbang CHEN ,  Haitao YANG ,  Jianle CHEN

IPC: H04N19/513 ,  H04N19/176 ,  H04N19/577 ,  H04N19/70

CPC classification number: H04N19/513 ,  H04N19/176 ,  H04N19/577 ,  H04N19/70

Abstract: Embodiments of this application relate to the field of video picture coding technologies, and disclose a bidirectional inter prediction method and apparatus, to improve coding efficiency. The method includes: obtaining indication information, where the indication information is used to indicate that second motion information is determined based on first motion information, the first motion information is motion information of a current picture block in a first direction, and the second motion information is motion information of the current picture block in a second direction; obtaining the first motion information; determining the second motion information based on the first motion information; and determining prediction samples of the current picture block based on the first motion information and the second motion information.

公开(公告)号：US20240007658A1

公开(公告)日：2024-01-04

申请号：US18223126

申请日：2023-07-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jue MAO ,  Haitao YANG ,  Jing WANG ,  Ze CUI

IPC: H04N19/30 ,  H04N19/184 ,  H04N19/13 ,  H04N19/136 ,  H04N19/42

CPC classification number: H04N19/30 ,  H04N19/184 ,  H04N19/13 ,  H04N19/136 ,  H04N19/42

Abstract: This application provides a scalable encoding and decoding method and apparatus. The encoding method includes: applying a control signal of a first signal component of a video signal to a first feature map of the first signal component, to obtain a second feature map of the first signal component, where the control signal of the first signal component is obtained through learning; applying a control signal of a second signal component of the video signal to a first feature map of the second signal component, to obtain a second feature map of the second signal component, where the control signal of the second signal component is obtained through learning; and obtaining a bitstream of the video signal based on the second feature map of the first signal component and the second feature map of the second signal component.

公开(公告)号：US20230336725A1

公开(公告)日：2023-10-19

申请号：US18337330

申请日：2023-06-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yin ZHAO ,  Haitao YANG ,  Jianle CHEN

IPC: H04N19/122 ,  H04N19/119 ,  H04N19/176 ,  H04N19/18 ,  H04N19/61

CPC classification number: H04N19/122 ,  H04N19/119 ,  H04N19/176 ,  H04N19/18 ,  H04N19/61

Abstract: A video decoding method includes parsing a bitstream to obtain a split mode to transform units (TUs) in a current coding unit (CU). Each of the TUs includes a serial number in a one-to-one correspondence with positions of the TUs in the current CU. A transform coefficient of a luminance transform block of a current TU in the TUs is obtained. A transform type of the luminance transform block of the current TU is obtained based on the split mode and a serial number of the current TU. An inverse transform on the transform coefficient of the luminance transform block of the current TU is performed based on the transform type of the luminance transform block of the current TU to obtain a reconstructed residual of the luminance transform block of the current TU. A reconstructed block of the current CU is obtained based on the reconstructed residual.

公开(公告)号：US20230039840A1

公开(公告)日：2023-02-09

申请号：US17954861

申请日：2022-09-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haitao YANG ,  Lian ZHANG ,  Xiang MA

IPC: H04N19/13 ,  H04N19/91 ,  H04N19/18 ,  H04N19/176

Abstract: The present application disclose a picture processing method and apparatus, which are applicable to a video picture processing scenario. The method includes: obtaining at least two transform coefficient blocks, where each of the at least two transform coefficient blocks includes at least two transform coefficients that correspond to different frequency points; determining, according to a preset frequency point scanning order, the transform coefficients that are in the at least two transform coefficient blocks and that correspond to a selected frequency point; and encoding, according to a preset coefficient scanning order, each transform coefficient corresponding to the selected frequency point, to obtain picture encoded information.

公开(公告)号：US20220345748A1

公开(公告)日：2022-10-27

申请号：US17853153

申请日：2022-06-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiang MA ,  Haitao YANG

IPC: H04N19/70 ,  H04N19/105 ,  H04N19/30 ,  H04N19/186 ,  H04N19/172 ,  H04N19/50

Abstract: A method for decoding a coded video bitstream is provided. The method includes: obtaining a reference layer syntax element by parsing the coded video bitstream, wherein a value of the reference layer syntax element specifying whether a layer with index k is a direct reference layer for a layer with index i; determining whether the layer with index j is a reference layer for the layer with index i based on the value of the reference layer syntax element; and when a condition is satisfied, predicting a picture of the layer with index i based on the layer with index j, wherein the value of a chroma format related syntax element applied to the layer with index i is the same as the value of a chroma format related syntax element applied to the layer with index j.

公开(公告)号：US20220295047A1

公开(公告)日：2022-09-15

申请号：US17827398

申请日：2022-05-27

Applicant: Huawei Technologies Co., Ltd. ,  University of Science and Technology of China

Inventor： Zhuoyi LV ,  Li LI ,  Houqiang LI ,  Haitao YANG

IPC: H04N19/105 ,  H04N19/54 ,  H04N19/527 ,  H04N19/176 ,  H04N19/139 ,  H04N19/172 ,  H04N19/52

Abstract: An image prediction method and device are disclosed. The method includes: obtaining a first reference unit of an image unit, where respective predicted images are obtained for the image unit and the first reference unit by using a same affine model; obtaining motion information of basic motion compensation units at two or more preset positions in the first reference unit; and obtaining motion information of a basic motion compensation unit of the image unit according to the motion information. In this way, motion information of the first reference unit using a same affine motion prediction model is reused, and a more accurate motion vector of a current image unit is obtained, improving prediction accuracy and maintaining encoding and decoding complexity, thereby improving encoding and decoding performance.

公开(公告)号：US20220256184A1

公开(公告)日：2022-08-11

申请号：US17731109

申请日：2022-04-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huanbang CHEN ,  Haitao YANG ,  Jianle CHEN

IPC: H04N19/513 ,  H04N19/176 ,  H04N19/577 ,  H04N19/70

Abstract: Embodiments of this application relate to the field of video picture coding technologies, and disclose a bidirectional inter prediction method and apparatus, to improve coding efficiency. The method includes: obtaining indication information, where the indication information is used to indicate that second motion information is determined based on first motion information, the first motion information is motion information of a current picture block in a first direction, and the second motion information is motion information of the current picture block in a second direction; obtaining the first motion information; determining the second motion information based on the first motion information; and determining prediction samples of the current picture block based on the first motion information and the second motion information.