公开(公告)号：US10827194B2

公开(公告)日：2020-11-03

申请号：US15461274

申请日：2017-03-16

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

Inventor： Li Li ,  Houqiang Li ,  Zhuoyi Lv ,  Sixin Lin

IPC: H04N19/513 ,  H04N19/176 ,  H04N19/54 ,  H04N19/182 ,  H04N19/51 ,  H04N19/593

Abstract: A picture prediction method and a related apparatus are disclosed. The picture prediction method includes: determining motion vector predictors of K pixel samples in a current picture block, where K is an integer greater than 1, the K pixel samples include a first vertex angle pixel sample in the current picture block, a motion vector predictor of the first vertex angle pixel sample is obtained based on a motion vector of a preset first spatially adjacent picture block of the current picture block, and the first spatially adjacent picture block is spatially adjacent to the first vertex angle pixel sample; and performing, based on a non-translational motion model and the motion vector predictors of the K pixel samples, pixel value prediction on the current picture block. Solutions in the embodiments of the present application are helpful in reducing calculation complexity of picture prediction based on a non-translational motion model.

公开(公告)号：US10440380B2

公开(公告)日：2019-10-08

申请号：US15463850

申请日：2017-03-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huanbang Chen ,  Sixin Lin ,  Fan Liang

IPC: H04N19/51 ,  H04N19/176 ,  H04N19/147 ,  H04N19/103 ,  H04N19/182 ,  H04N19/537 ,  H04N19/567 ,  H04N19/105 ,  H04N19/172

Abstract: Embodiments of a picture prediction method and a related apparatus are disclosed. A picture prediction method includes: determining K1 pixel samples in a picture block x, and determining a candidate motion information unit set corresponding to each pixel sample in the K1 pixel samples, where the candidate motion information unit set corresponding to each pixel sample includes at least one candidate motion information unit; determining a merged motion information unit set i including K1 motion information units, where each motion information unit in the merged motion information unit set i is selected from at least a part of motion information units in candidate motion information unit sets corresponding to different pixel samples in the K1 pixel samples; and predicting a pixel value of the picture block x by using a non-translational motion model and the merged motion information unit set i.

公开(公告)号：US20180249177A1

公开(公告)日：2018-08-30

申请号：US15965162

申请日：2018-04-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Sixin Lin ,  Xiang Zhang ,  Siwei Ma ,  Haitao Yang

IPC: H04N19/59 ,  H04N19/105 ,  H04N19/172

Abstract: A reference frame decoding method includes obtaining a first reference frame, where the first reference frame is a first picture frame on which decoding reconstruction has been performed or a first interpolated picture frame obtained by pixel interpolation on the first picture frame, parsing a bitstream to obtain mapping parameters, determining to-be-determined coefficients of a preset mapping function according to the mapping parameters, obtaining, in the first reference frame according to the mapping function whose to-be-determined coefficients have been determined, a first pixel unit having a mapping relationship with a second pixel unit of a second reference frame, and assigning a pixel value of the first pixel unit to the second pixel unit.

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：US20150181219A1

公开(公告)日：2015-06-25

申请号：US14635835

申请日：2015-03-02

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Sixin Lin ,  Lianhuan Xiong ,  Yingjia Liu ,  Steffen Kamp ,  Mathias Wien

IPC: H04N19/513

CPC classification number: H04N19/56 ,  H04N19/176 ,  H04N19/513 ,  H04N19/567

Abstract: A method, an apparatus and a system for a rapid motion search applied in template matching are disclosed. The method includes: selecting motion vectors of blocks related to a current block as candidate motion vectors of the current block; after the uniqueness of a series of the candidate motion vectors of the current block is maintained, calculating the cost function of the candidate motion vectors in a corresponding template area of a reference frame, and obtaining the motion vector of the best matching template from the candidate motion vectors of the current block. In the embodiments of the present invention, there is no need to determine a large search range and no need to determine the corresponding search path template, and it is only necessary to perform a search in a smaller range.

Abstract translation: 公开了一种适用于模板匹配的快速运动搜索的方法，装置和系统。 该方法包括：选择与当前块相关的块的运动矢量作为当前块的候选运动矢量; 在保持当前块的一系列候选运动矢量的唯一性之后，计算参考帧的相应模板区域中的候选运动矢量的成本函数，并从候选者获得最佳匹配模板的运动矢量 当前块的运动矢量。 在本发明的实施例中，不需要确定大的搜索范围，并且不需要确定相应的搜索路径模板，并且仅需要在较小的范围内执行搜索。

公开(公告)号：US08891889B2

公开(公告)日：2014-11-18

申请号：US13848301

申请日：2013-03-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haoping Yu ,  Xiaozhen Zheng ,  Sixin Lin ,  Jiantong Zhou

IPC: G06K9/36 ,  G06K9/46 ,  G06T9/00 ,  H04N19/46 ,  H04N19/537 ,  H04N19/119 ,  H04N19/172

CPC classification number: G06T9/004 ,  G06T9/00 ,  H04N19/119 ,  H04N19/172 ,  H04N19/46 ,  H04N19/537

Abstract: Image encoding and decoding methods and related devices are provided. An image encoding and decoding method includes: for a sub-image block obtained by partitioning an image block, determining at least two position parameters, in which the at least two position parameters include a first position parameter and a second position parameter, the first position parameter identifies whether the sub-image block is a rectangle or not a rectangle, and the second position parameter identifies endpoint information of the sub-image block; determining an encoding sequence of the first position parameter and the second position parameter according to a partition manner of the image block; and encoding the at least two position parameters according to the determined encoding sequence.

Abstract translation: 提供图像编码和解码方法及相关设备。 图像编码和解码方法包括：对于通过划分图像块获得的子图像块，确定至少两个位置参数，其中所述至少两个位置参数包括第一位置参数和第二位置参数，所述第一位置 参数识别子图像块是矩形还是矩形，第二位置参数识别子图像块的端点信息; 根据图像块的分割方式确定第一位置参数和第二位置参数的编码序列; 以及根据所确定的编码序列对所述至少两个位置参数进行编码。

公开(公告)号：US08718389B2

公开(公告)日：2014-05-06

申请号：US13848308

申请日：2013-03-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haoping Yu ,  Xiaozhen Zheng ,  Sixin Lin ,  Jiantong Zhou

IPC: G06K9/36 ,  G06T9/00

CPC classification number: G06T9/004 ,  G06T9/00 ,  H04N19/119 ,  H04N19/172 ,  H04N19/46 ,  H04N19/537

Abstract: Image encoding and decoding methods and related devices are provided. An image encoding and decoding method includes: for a sub-image block obtained by partitioning an image block, determining at least two position parameters, in which the at least two position parameters include a first position parameter and a second position parameter, the first position parameter identifies whether the sub-image block is a rectangle or not a rectangle, and the second position parameter identifies endpoint information of the sub-image block; determining an encoding sequence of the first position parameter and the second position parameter according to a partition manner of the image block; and encoding the at least two position parameters according to the determined encoding sequence.