公开(公告)号：US20130301715A1

公开(公告)日：2013-11-14

申请号：US13940272

申请日：2013-07-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yongbing LIN ,  Changcai Lai

IPC: H04N7/32

CPC classification number: H04N19/593 ,  H04N19/105 ,  H04N19/157 ,  H04N19/176 ,  H04N19/59 ,  H04N19/61

Abstract: The present application provides a prediction method for use in an image block encoding or decoding process. The method includes obtaining availability information of reference blocks of a current image block, and determining whether the reference blocks are available according to the availability information, where the reference blocks of the current image block include a left side block, an upper side block, and an upper left block of the current image block; if at least one of the reference blocks is available, and at least one is unavailable, filling a pixel value in the available reference block to the unavailable reference block as a reference pixel value of the current image block; and predicting the current image block according to the reference pixel value.

Abstract translation: 本申请提供了一种在图像块编码或解码过程中使用的预测方法。 该方法包括获取当前图像块的参考块的可用性信息，以及根据可用性信息确定参考块是否可用，其中当前图像块的参考块包括左侧块，上侧块和 当前图像块的左上方块; 如果参考块中的至少一个是可用的并且至少一个不可用，则将可用参考块中的像素值填充到不可用参考块作为当前图像块的参考像素值; 并根据参考像素值预测当前图像块。

公开(公告)号：US20210014492A1

公开(公告)日：2021-01-14

申请号：US17037192

申请日：2020-09-29

Applicant: Huawei Technologies Co., Ltd. ,  TSINGHUA UNIVERSITY

Inventor： Liqiang WANG ,  Jianhua ZHENG ,  Quanhe YU ,  Yongbing LIN ,  Yun HE

IPC: H04N19/12 ,  H04N19/176 ,  H04N19/167 ,  H04N19/119 ,  H04N19/70

Abstract: The present disclosure provide a transform method in picture block encoding, an inverse transform method in picture block decoding, and an apparatus. The inverse transform method includes: determining, in a target transform set, a corresponding transform pair of each region of at least two regions that constitute a to-be-decoded current block; inverse transforming each region based on the corresponding transform pair of each region to obtain an inverse transform result of each region; and obtaining an inverse transform result of the current block based on the inverse transform result of each region and a position of each region in the current block, where the at least two regions do not overlap each other, the target transform set includes a correspondence between a transform pair and a position of a region in the current block, and the transform pair includes a horizontal transform core and a vertical transform core.

公开(公告)号：US20140126633A1

公开(公告)日：2014-05-08

申请号：US14089328

申请日：2013-11-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yongbing LIN ,  Changcai LAI

IPC: H04N7/32

CPC classification number: H04N19/105 ,  H04N19/11 ,  H04N19/157 ,  H04N19/176 ,  H04N19/50 ,  H04N19/593

Abstract: A method for pixel prediction is provided. The method includes: obtaining an average pixel value of reference pixel points on a long side of a current block if the current block is rectangular and coded or decoded adjacent blocks of the current block are all available, where the reference pixel points are all located at boundaries of the adjacent blocks near the current block; and obtaining a prediction pixel value of the current block according to the average pixel value of the reference pixel points on the long side. According to the pixel prediction method and apparatus provided in the embodiments of the present invention, a prediction pixel is obtained from corresponding adjacent blocks according to a shape of the current block, meeting a pixel distribution rule.

Abstract translation: 提供了一种用于像素预测的方法。 该方法包括：如果当前块是矩形并且当前块的相邻块的编码或解码全部可用，则获得当前块的长边上的参考像素点的平均像素值，其中参考像素点都位于 当前块附近的相邻块的边界; 并且根据长边上的参考像素点的平均像素值获得当前块的预测像素值。 根据本发明实施例提供的像素预测方法和装置，根据当前块的形状，从相应的相邻块获得预测像素，满足像素分布规则。

公开(公告)号：US20190320205A1

公开(公告)日：2019-10-17

申请号：US16452082

申请日：2019-06-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yongbing LIN

IPC: H04N19/61 ,  H04N19/176 ,  H04N19/182 ,  H04N19/90 ,  H04N19/573

Abstract: A template matching-based prediction method includes: performing matching search separately in at least two reference images of a to-be-processed unit based on a current template to obtain, at each time of the matching search, one set of motion information, one unidirectional matching template, and one unidirectional template distortion value that are corresponding to the reference image, where the current template includes a plurality of reconstructed pixels with a preset quantity at preset positions in a neighboring domain of the to-be-processed unit, and the unidirectional template distortion value represents a difference between the current template and the unidirectional matching template; determining, as target motion information of the to-be-processed unit, motion information corresponding to a smallest one of the obtained unidirectional template distortion values; and constructing a predicted value of the to-be-processed unit based on the target motion information.

公开(公告)号：US20150382011A1

公开(公告)日：2015-12-31

申请号：US14788248

申请日：2015-06-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yongbing LIN

IPC: H04N19/513 ,  H04N19/176 ,  H04N19/137 ,  H04N19/593

CPC classification number: H04N19/513 ,  H04N19/137 ,  H04N19/176 ,  H04N19/52 ,  H04N19/593 ,  H04N19/597

Abstract: The present invention discloses a motion vector list constructing method and system for video coding. The motion vector list constructing method for video coding includes: obtaining a motion information candidate list that is based on a spatially neighboring block and a time-domain corresponding block and that is of a current prediction block; obtaining sub motion information candidates that are of multiple sub blocks of the current prediction block and that are based on inter-view corresponding blocks of the multiple sub blocks of the current prediction block; determining availability of the sub motion information candidates of the multiple sub blocks; and updating the motion information candidate list by using one sub motion information candidate of at least one available sub motion information candidate.

Abstract translation: 本发明公开了一种用于视频编码的运动矢量列表构造方法和系统。 用于视频编码的运动矢量列表构造方法包括：获得基于空间相邻块的运动信息候选列表和时域对应块，并且是当前预测块; 获取当前预测块的多个子块的基于当前预测块的多个子块的视角间对应块的子运动信息候选; 确定所述多个子块的子运动信息候选的可用性; 以及通过使用至少一个可用子运动信息候选的一个子运动信息候选来更新运动信息候选列表。

公开(公告)号：US20130301707A1

公开(公告)日：2013-11-14

申请号：US13938992

申请日：2013-07-10

Applicant: Tsinghua University ,  Huawei Technologies Co., Ltd.

Inventor： Changcai LAI ,  Xiaoran CAO ,  Yongbing LIN ,  Lingzhi LIU ,  Yun HE

IPC: H04N7/26

CPC classification number: H04N19/119 ,  H04N19/124 ,  H04N19/147 ,  H04N19/172 ,  H04N19/46 ,  H04N19/61

Abstract: An encoding method with multiple image block division manners is disclosed, including: determining a division manner and a division direction of an image block; dividing the image block to obtain image subblocks sequentially arranged horizontally or vertically; determining whether the image subblocks need subdivision, and if subdivision is not needed, predicting the encoding object in the frame according to the image subblocks, to obtain residual data; performing transformation, quantization, and entropy encoding for the residual data so as to obtain coded residual data; and writing the division manner of the image block, the division direction of the image block, an identifier indicating whether the image subblocks need subdivision, and the coded residual data into a bitstream. By applying the encoding method, better prediction accuracy can be achieved when the image block presents a small change of pixel value in the horizontal or vertical direction.

Abstract translation: 公开了具有多个图像块分割方式的编码方法，包括：确定图像块的分割方式和分割方向; 划分图像块以获得顺序地水平或垂直布置的图像子块; 确定图像子块是否需要细分，如果不需要细分，则根据图像子块预测该帧中的编码对象，以获得残差数据; 对残差数据执行变换，量化和熵编码，以获得编码的残差数据; 并写入图像块的分割方式，图像块的分割方向，指示图像子块是否需要细分的标识符，以及将编码的残差数据写入比特流。 通过应用编码方法，当图像块在水平或垂直方向呈现小的像素值变化时，可以获得更好的预测精度。

公开(公告)号：US20220174279A1

公开(公告)日：2022-06-02

申请号：US17673512

申请日：2022-02-16

Applicant: Huawei Technologies Co., Ltd. ,  Tsinghua University

Inventor： Changcai LAI ,  Xiaoran CAO ,  Yongbing LIN ,  Lingzhi LIU ,  Yun HE

IPC: H04N19/119 ,  H04N19/147 ,  H04N19/124 ,  H04N19/172

Abstract: An decoding method is disclosed, including: parsing a bitstream to obtain a first flag, wherein the first flag specifies whether a current coding block is required to be partitioned; when the first flag specifies that the current coding block is required to be partitioned, parsing the bitstream to obtain a second flag, wherein the second flag specifies whether the current coding blocks is partitioned in a horizontal direction or a vertical direction; partitioning the current coding block into four first rectangular subblocks in the horizontal direction or four second rectangular subblocks in the vertical direction; and reconstructing the current coding block based on the four first rectangular subblocks or the four second rectangular subblocks.

公开(公告)号：US20210076036A1

公开(公告)日：2021-03-11

申请号：US17099470

申请日：2020-11-16

Applicant: Huawei Technologies Co., Ltd. ,  Tsinghua University

Inventor： Quanhe YU ,  Jicheng AN ,  Jianhua ZHENG ,  Yongbing LIN ,  Liqiang WANG ,  Benben NIU ,  Ziwei WEI ,  Yun HE

IPC: H04N19/119 ,  H04N19/105 ,  H04N19/46 ,  H04N19/176

Abstract: Embodiments of this application relate to the video coding and compression field, and disclose an encoding method and apparatus, and a decoding method and apparatus, to resolve a problem that an existing split mode cannot satisfy a relatively complex texture requirement. The decoding method specifically includes: parsing a bitstream to determine a basic split mode for a current to-be-decoded picture block and a target derivation mode for a subpicture block of the current to-be-decoded picture block; splitting the current to-be-decoded picture block into N subpicture blocks in the basic split mode, where N is an integer greater than or equal to 2; deriving one derived picture block from at least two adjacent subpicture blocks in the N subpicture blocks in the target derivation mode; and decoding the derived picture block.

公开(公告)号：US20200296422A1

公开(公告)日：2020-09-17

申请号：US16890779

申请日：2020-06-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ce ZHU ,  Shichang SONG ,  Yongbing LIN ,  Jianhua ZHENG

IPC: H04N19/645 ,  H04N19/176 ,  H04N19/147 ,  H04N19/44

Abstract: An image encoding and decoding method, includes: determining location information of a target reconstructed image block of a current to-be-encoded image block, where the target reconstructed image block is a reconstructed image block used to determine motion information of the current to-be-encoded image block; determining a first transform core pair based on the location information of the target reconstructed image block; and transforming a residual signal of the current to-be-encoded image block based on the first transform core pair, to obtain a transform coefficient.

公开(公告)号：US20230040051A1

公开(公告)日：2023-02-09

申请号：US17959651

申请日：2022-10-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jun CHEN ,  Jianqin LIU ,  Yongbing LIN

IPC: H04W64/00 ,  H04W4/40

Abstract: The present disclosure relates to positioning methods, systems, and apparatuses. One example method includes receiving, by a server, a first message from a first terminal device, where the first message includes first location information determined by the first terminal device, determining, by the server, a first reference object based on the first location information, and sending, by the server, a second message to the first terminal device, where the second message includes identification information of the first reference object, and the identification information of the first reference object is used by the first terminal device to update the first location information.