公开(公告)号：US20170111659A1

公开(公告)日：2017-04-20

申请号：US15391810

申请日：2016-12-27

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Jin Song ,  Mingyuan Yang ,  Dong Wang

IPC: H04N19/645 ,  H04N19/132 ,  H04N19/129 ,  H04N19/86 ,  H04N19/91 ,  H04N19/117 ,  H04N19/61

CPC classification number: H04N19/645 ,  H04N19/117 ,  H04N19/129 ,  H04N19/132 ,  H04N19/60 ,  H04N19/61 ,  H04N19/86 ,  H04N19/91

Abstract: An encoding method includes: encoding transform coefficients of a transform coefficient block according to a predetermined scan order, and encoding a set number of transform coefficients in each group until a last group of the transform coefficient block is encoded; storing an obtained map of non-zero transform coefficients, absolute values of transform coefficients, and positive and negative signs of non-zero transform coefficients; when the last group is being encoded, encoding the stored map of non-zero transform coefficients and the map of non-zero transform coefficients encoded in the last group into a bit stream; and encoding the stored absolute values of transform coefficients and positive and negative signs of non-zero transform coefficients and the absolute values of transform coefficients and positive and negative signs of non-zero transform coefficients encoded in the last group into the bit stream.

公开(公告)号：US09521408B2

公开(公告)日：2016-12-13

申请号：US13946705

申请日：2013-07-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mingyuan Yang ,  Sixin Lin ,  Jiantong Zhou ,  Haoping Yu

IPC: H04N7/34 ,  H04N7/36 ,  H04N19/51 ,  H04N19/513 ,  H04N19/533 ,  H04N19/523 ,  H04N19/59

CPC classification number: H04N19/51 ,  H04N19/513 ,  H04N19/523 ,  H04N19/533 ,  H04N19/59

Abstract: The present disclosure provides a method and an apparatus for rounding a coordinate value of a non-integer pixel position motion vector. The method includes: rounding a coordinate value of a non-integer pixel position motion vector, which includes: for each dimension of coordinates of the non-integer pixel position motion vector, when a coordinate in the dimension is a non-integer pixel position, rounding the coordinate value of the non-integer pixel position motion vector in the dimension to one of integer pixel coordinate positions A and B if distances from the coordinate of the non-integer pixel position motion vector in the dimension to the integer pixel coordinate positions A and B adjacent to the non-integer pixel position in the dimension are the same, where an integer pixel coordinate position is determined by a sign of the coordinate value of the non-integer pixel position motion vector in the dimension.

Abstract translation: 本公开提供了用于舍入非整数像素位置运动矢量的坐标值的方法和装置。 该方法包括：舍入非整数像素位置运动矢量的坐标值，该坐标值包括：对于非整数像素位置运动矢量的坐标的每个维度，当维度中的坐标是非整数像素位置时， 将尺寸中的非整数像素位置运动矢量的坐标值舍入到整数像素坐标位置A和B之一，如果距维度中的非整数像素位置运动矢量的坐标到整数像素坐标位置A 和B相邻的尺寸上的非整数像素位置的坐标值相同，其中整数像素坐标位置由尺寸中的非整数像素位置运动矢量的坐标值的符号确定。

公开(公告)号：US10484702B2

公开(公告)日：2019-11-19

申请号：US15822657

申请日：2017-11-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Sixin Lin ,  Mingyuan Yang

IPC: H04N7/12 ,  H04N19/513 ,  H04N19/517 ,  H04N19/51 ,  H04N19/56 ,  H04N19/523 ,  H04N19/567

Abstract: An encoding method, a decoding method, an encoding apparatus, a decoding apparatus, for a video image. The encoding method includes: determining an optimal merged neighboring block for a current block based on a motion vector merging technology; determining, based a prediction direction of the optimal merged neighboring block, a motion vector derivation mode that needs to be used by a decoder; correcting a motion vector of the current block based on the motion vector derivation mode; and determining a residual between a predicted value and an original value of the current block based on the corrected motion vector, thereby encoding the current block. According to the technical solutions, a more accurate predicted value is obtained by correcting the motion vector, and a smaller residual is generated.

公开(公告)号：US20130315313A1

公开(公告)日：2013-11-28

申请号：US13946705

申请日：2013-07-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mingyuan Yang ,  Sixin Lin ,  Jiantong Zhou ,  Haoping Yu

IPC: H04N7/36

CPC classification number: H04N19/51 ,  H04N19/513 ,  H04N19/523 ,  H04N19/533 ,  H04N19/59

Abstract: The present disclosure provides a method and an apparatus for rounding a coordinate value of a non-integer pixel position motion vector. The method includes: rounding a coordinate value of a non-integer pixel position motion vector, which includes: for each dimension of coordinates of the non-integer pixel position motion vector, when a coordinate in the dimension is a non-integer pixel position, rounding the coordinate value of the non-integer pixel position motion vector in the dimension to one of integer pixel coordinate positions A and B if distances from the coordinate of the non-integer pixel position motion vector in the dimension to the integer pixel coordinate positions A and B adjacent to the non-integer pixel position in the dimension are the same, where an integer pixel coordinate position is determined by a sign of the coordinate value of the non-integer pixel position motion vector in the dimension.

Abstract translation: 本公开提供了用于舍入非整数像素位置运动矢量的坐标值的方法和装置。 该方法包括：舍入非整数像素位置运动矢量的坐标值，该坐标值包括：对于非整数像素位置运动矢量的坐标的每个维度，当维度中的坐标是非整数像素位置时， 将尺寸中的非整数像素位置运动矢量的坐标值舍入到整数像素坐标位置A和B之一，如果距维度中的非整数像素位置运动矢量的坐标到整数像素坐标位置A 和B相邻的尺寸上的非整数像素位置的坐标值相同，其中整数像素坐标位置由尺寸中的非整数像素位置运动矢量的坐标值的符号确定。

公开(公告)号：US20240031593A1

公开(公告)日：2024-01-25

申请号：US18451855

申请日：2023-08-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Sixin Lin ,  Mingyuan Yang

IPC: H04N19/513 ,  H04N19/517 ,  H04N19/51

CPC classification number: H04N19/513 ,  H04N19/517 ,  H04N19/51 ,  H04N19/56

Abstract: Embodiments of the present invention provide an encoding method, a decoding method, an encoding apparatus, a decoding apparatus, for a video image. The encoding method includes: determining an optimal integrated neighboring block for a current block based on a motion vector integration technology; determining, based a prediction direction of the optimal integrated neighboring block, a motion vector derivation mode that needs to be used by a decoder; correcting a motion vector of the current block based on the motion vector derivation mode; and determining a residual between a predicted value and an original value of the current block based on the corrected motion vector, thereby encoding the current block. According to the technical solutions, a more accurate predicted value is obtained by correcting the motion vector, and a smaller residual is generated.

公开(公告)号：US11765379B2

公开(公告)日：2023-09-19

申请号：US17535693

申请日：2021-11-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Sixin Lin ,  Mingyuan Yang

IPC: H04N19/513 ,  H04N19/517 ,  H04N19/51 ,  H04N19/56 ,  H04N19/523 ,  H04N19/567

CPC classification number: H04N19/513 ,  H04N19/51 ,  H04N19/517 ,  H04N19/523 ,  H04N19/56 ,  H04N19/567

Abstract: Provided herein are an encoding method, a decoding method, an encoding apparatus, a decoding apparatus, for a video image. The encoding method includes: determining an optimal integrated neighboring block for a current block based on a motion vector integration technology; determining, based a prediction direction of the optimal integrated neighboring block, a motion vector derivation mode that needs to be used by a decoder; correcting a motion vector of the current block based on the motion vector derivation mode; and determining a residual between a predicted value and an original value of the current block based on the corrected motion vector, thereby encoding the current block. According to the technical solutions, a more accurate predicted value is obtained by correcting the motion vector, and a smaller residual is generated.

公开(公告)号：US20220086477A1

公开(公告)日：2022-03-17

申请号：US17535693

申请日：2021-11-26

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Sixin Lin ,  Mingyuan Yang

IPC: H04N19/513 ,  H04N19/517 ,  H04N19/51

Abstract: Embodiments of the present invention provide an encoding method, a decoding method, an encoding apparatus, a decoding apparatus, for a video image. The encoding method includes: determining an optimal integrated neighboring block for a current block based on a motion vector integration technology; determining, based a prediction direction of the optimal integrated neighboring block, a motion vector derivation mode that needs to be used by a decoder; correcting a motion vector of the current block based on the motion vector derivation mode; and determining a residual between a predicted value and an original value of the current block based on the corrected motion vector, thereby encoding the current block. According to the technical solutions, a more accurate predicted value is obtained by correcting the motion vector, and a smaller residual is generated.

公开(公告)号：US10097826B2

公开(公告)日：2018-10-09

申请号：US15864493

申请日：2018-01-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Sixin Lin ,  Mingyuan Yang ,  Haoping Yu ,  Jiantong Zhou ,  Cunbin Pan

IPC: H04N7/12 ,  H04N19/109 ,  G06T9/00 ,  H04N19/56 ,  H04N19/149 ,  H04N19/117 ,  H04N19/53 ,  H04N19/523 ,  H04N19/577

Abstract: A method and device for generating a predicted value of image to generate a predicted value of a current block during image encoding or decoding is disclosed, where the method includes determining a searching scope, wherein a plurality of motion vectors are included in the searching scope, performing up-sampling interpolations on first reference blocks corresponding to the motion vector in the searching scope, in a reference image of the current block using a first filter to obtain up-sampled first reference blocks, obtaining, using the up-sampled first reference blocks, at least one candidate motion vector corresponding to the current block, performing up-sampling interpolations on second reference blocks, corresponding to the at least one candidate motion vector, in the reference image of the current block using a second filter to obtain up-sampled second reference blocks, combining the up-sampled second reference blocks to obtain a predicted value of the current block.

公开(公告)号：US09324165B2

公开(公告)日：2016-04-26

申请号：US13738773

申请日：2013-01-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Sixin Lin ,  Mingyuan Yang ,  Haoping Yu ,  Jiantong Zhou ,  Cunbin Pan

IPC: H04N7/12 ,  G06T9/00 ,  H04N19/56 ,  H04N19/149 ,  H04N19/109 ,  H04N19/117 ,  H04N19/53 ,  H04N19/523 ,  H04N19/577

CPC classification number: H04N19/109 ,  G06T9/004 ,  H04N19/117 ,  H04N19/149 ,  H04N19/523 ,  H04N19/53 ,  H04N19/56 ,  H04N19/577

Abstract: A method and device for generating a predicted value of image that are mostly used to generate a predicted value of a current block during image encoding or decoding. The method includes: determining a searching scope, wherein multiple motion vectors are included in the searching scope; performing up-sampling interpolations on first reference blocks, corresponding to the motion vector in the searching scope, in a reference image of the current block by using a first filter to obtain up-sampled first reference blocks; by using the up-sampled first reference blocks, obtaining at least one candidate motion vector corresponding to the current block; performing up-sampling interpolations on second reference blocks, corresponding to the at least one candidate motion vector, in the reference image of the current block by using a second filter to obtain up-sampled second reference blocks; combining the up-sampled second reference blocks to obtain a predicted value of the current block.

Abstract translation: 一种用于在图像编码或解码期间生成主要用于生成当前块的预测值的图像的预测值的方法和装置。 该方法包括：确定搜索范围，其中多个运动矢量包括在搜索范围内; 通过使用第一滤波器来获取上采样的第一参考块，在当前块的参考图像中对与搜索范围中的运动矢量相对应的第一参考块执行向上采样内插; 通过使用上采样的第一参考块，获得与当前块相对应的至少一个候选运动矢量; 通过使用第二滤波器来获取上采样的第二参考块，在当前块的参考图像中对应于至少一个候选运动矢量的第二参考块上执行上取样内插; 组合上采样的第二参考块以获得当前块的预测值。

公开(公告)号：US09288492B2

公开(公告)日：2016-03-15

申请号：US13947681

申请日：2013-07-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Sixin Lin ,  Mingyuan Yang ,  Jiantong Zhou ,  Haoping Yu

IPC: H04N19/52 ,  H04N19/533 ,  H04N19/56 ,  H04N19/523

CPC classification number: H04N19/533 ,  H04N19/52 ,  H04N19/523 ,  H04N19/56

Abstract: Embodiments of the present invention provide a motion prediction or compensation method during a video coding and decoding process. A motion prediction or compensation method provided in the embodiments of the present invention includes: acquiring a candidate motion vector set; conducting a refined search for an optimal motion vector based on information of the candidate motion vector set; and performing motion prediction or compensation by using the motion vector acquired by the refined search. This improves coding performance and meanwhile maintains reasonable complexity.

Abstract translation: 本发明的实施例在视频编码和解码过程中提供运动预测或补偿方法。 本发明实施例提供的运动预测或补偿方法包括：获取候选运动矢量集; 基于候选运动矢量集的信息进行精确搜索最优运动矢量; 以及通过使用由精细搜索获得的运动矢量来执行运动预测或补偿。 这提高了编码性能，同时保持了合理的复杂性。