公开(公告)号：US20180131932A1

公开(公告)日：2018-05-10

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

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 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：US20180077424A1

公开(公告)日：2018-03-15

申请号：US15822657

申请日：2017-11-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Sixin Lin ,  Mingyuan Yang

IPC: H04N19/513 ,  H04N19/517 ,  H04N19/523 ,  H04N19/567 ,  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：US09860531B2

公开(公告)日：2018-01-02

申请号：US14020953

申请日：2013-09-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Sixin Lin ,  Mingyuan Yang

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

CPC classification number: H04N19/513 ,  H04N19/51 ,  H04N19/517 ,  H04N19/523 ,  H04N19/56 ,  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 integrated candidate block for a current block based on a motion vector integration technology; determining, based a prediction direction of the optimal integrated candidate 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, thereby improving encoding efficiency, avoiding an increase in data bandwidth, improving decoding quality, and reducing calculation complexity.

公开(公告)号：US20160241851A1

公开(公告)日：2016-08-18

申请号：US15135913

申请日：2016-04-22

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

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

IPC: H04N19/109 ,  H04N19/149 ,  H04N19/577 ,  H04N19/53 ,  H04N19/56 ,  H04N19/117 ,  H04N19/523

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.

公开(公告)号：US11206420B2

公开(公告)日：2021-12-21

申请号：US16674862

申请日：2019-11-05

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: Encoding methods, decoding methods, encoding apparatuses, and decoding apparatuses are provided, for a video image with forward and backward reference blocks. One 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：US10165305B2

公开(公告)日：2018-12-25

申请号：US15391810

申请日：2016-12-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jin Song ,  Mingyuan Yang ,  Dong Wang

IPC: H04N7/12 ,  H04N19/645 ,  H04N19/129 ,  H04N19/61 ,  H04N19/117 ,  H04N19/91 ,  H04N19/132 ,  H04N19/86 ,  H04N19/60

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：US09906788B2

公开(公告)日：2018-02-27

申请号：US15135913

申请日：2016-04-22

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

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.

公开(公告)号：US09571836B2

公开(公告)日：2017-02-14

申请号：US14021782

申请日：2013-09-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jin Song ,  Mingyuan Yang ,  Dong Wang

IPC: H04N7/12 ,  H04N19/60 ,  H04N19/117 ,  H04N19/645 ,  H04N19/86 ,  H04N19/129 ,  H04N19/61 ,  H04N19/91 ,  H04N19/132

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.

Abstract translation: 编码方法包括：根据预定的扫描顺序对变换系数块的变换系数进行编码，并对每组中的设定数目的变换系数进行编码，直到编码最后一组变换系数块; 存储获得的非零变换系数的图，变换系数的绝对值，以及非零变换系数的正和负符号; 当最后一组被编码时，将存储的非零变换系数的映射和在最后组中编码的非零变换系数的映射编码为比特流; 并将所存储的变换系数的绝对值和非零变换系数的正和负符号以及最后一组中编码的非零变换系数的变换系数和正负号的绝对值编码为比特流。

公开(公告)号：US09467676B2

公开(公告)日：2016-10-11

申请号：US14285962

申请日：2014-05-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mingyuan Yang ,  Jiali Fu ,  Fabian Jaeger ,  Mathias Wien

IPC: H04N13/00 ,  H04N19/597 ,  H04N19/192

CPC classification number: H04N13/128 ,  H04N13/161 ,  H04N19/192 ,  H04N19/597 ,  H04N2013/0081

Abstract: Embodiments of the present invention provide multi-view video coding and coding methods and corresponding apparatuses. The multi-view video coding method includes: minimizing an error between a currently coded view image and a warped view image of a front view image to obtain an optimal warping offset; calculating disparity information between the front view image and the currently coded view image by using the optimal warping offset, a camera parameter of a view, and depth image information of the front view image; and calculating the warped view image of the front view image by using the disparity information and the front view image, and predicting a current view image by using the warped view image as a prediction signal.

Abstract translation: 本发明的实施例提供多视点视频编码和编码方法以及对应的装置。 多视点视频编码方法包括：最小化当前编码的视图图像和前视图的翘曲视图图像之间的误差，以获得最佳的翘曲偏移; 通过使用最佳翘曲偏移，视角的相机参数和前视图的深度图像信息来计算前视图和当前编码的视图图像之间的视差信息; 以及通过使用视差信息和前视图来计算前视图的翘曲视图图像，并且通过使用翘曲视图图像作为预测信号来预测当前视图图像。

公开(公告)号：US20140254690A1

公开(公告)日：2014-09-11

申请号：US14285962

申请日：2014-05-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mingyuan Yang ,  Jiali Fu ,  Fabian Jaeger ,  Mathias Wien

IPC: H04N13/00 ,  H04N19/597

CPC classification number: H04N13/128 ,  H04N13/161 ,  H04N19/192 ,  H04N19/597 ,  H04N2013/0081

Abstract: Embodiments of the present invention provide multi-view video coding and coding methods and corresponding apparatuses. The multi-view video coding method includes: minimizing an error between a currently coded view image and a warped view image of a front view image to obtain an optimal warping offset; calculating disparity information between the front view image and the currently coded view image by using the optimal warping offset, a camera parameter of a view, and depth image information of the front view image; and calculating the warped view image of the front view image by using the disparity information and the front view image, and predicting a current view image by using the warped view image as a prediction signal.

Abstract translation: 本发明的实施例提供多视点视频编码和编码方法以及对应的装置。 多视点视频编码方法包括：最小化当前编码的视图图像和前视图的翘曲视图图像之间的误差，以获得最佳的翘曲偏移; 通过使用最佳翘曲偏移，视角的相机参数和前视图的深度图像信息来计算前视图和当前编码的视图图像之间的视差信息; 以及通过使用视差信息和前视图来计算前视图的翘曲视图图像，并且通过使用翘曲视图图像作为预测信号来预测当前视图图像。