公开(公告)号：US11750809B2

公开(公告)日：2023-09-05

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 ,  H04N19/46 ,  H04N19/61

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.

公开(公告)号：US20230061368A1

公开(公告)日：2023-03-02

申请号：US17970684

申请日：2022-10-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yongbing Lin ,  Sha Ma

IPC: H04N19/186 ,  H04N19/184 ,  H04N19/176

Abstract: An image encoding method includes a color difference signal Cr corresponding to a first pixel and a color difference signal Cb corresponding to a second pixel that are determined based on a pixel value of the first pixel, a pixel value of the second pixel, and pixel values of a third pixel and a fourth pixel that are adjacent to the first pixel. Then, an average value Co of the color difference signal Cr corresponding to the first pixel and the color difference signal Cb corresponding to the second pixel, and a difference value Cg between the color difference signal Cr and the color difference signal Cb are determined.

公开(公告)号：US10511854B2

公开(公告)日：2019-12-17

申请号：US16054750

申请日：2018-08-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yongbing Lin

IPC: H04N19/46 ,  H04N19/52 ,  H04N19/463 ,  H04N19/436 ,  H04N19/105 ,  H04N19/176

Abstract: Relating to the field of video coding, a method and an apparatus for building a motion vector list for motion vector prediction, which solve a problem of building motion vector lists of at least two PUs in a same coding unit in a serial manner, and improve the parallel processing capability. The method includes: obtaining spatial neighboring blocks of a current prediction block, where the current prediction block is located inside a current coding unit; determining available neighboring blocks of the current prediction block according to a partition manner of the current coding unit, where the available neighboring blocks are located outside the current coding unit; and obtaining motion vectors from the available neighboring blocks in a preset sequence according to motion vectors of the available neighboring blocks, and adding the obtained motion vectors to the motion vector list.

公开(公告)号：US20190313126A1

公开(公告)日：2019-10-10

申请号：US16448377

申请日：2019-06-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yongbing Lin

IPC: H04N19/91 ,  H04N19/124 ,  H04N19/52 ,  H04N19/615 ,  H04N19/105 ,  H04N19/176

Abstract: A coding method based on template matching includes determining a prediction mode of a to-be-coded unit, performing intra-frame prediction or inter-frame prediction on the to-be-coded unit based on the prediction mode to obtain a prediction residual of the to-be-coded unit, when the prediction mode is a template matching mode, transforming the prediction residual using target transform to obtain transform coefficients, where coefficients in row 1 of a transform basis matrix of the target transform are distributed in ascending order from left to right, or coefficients in column 1 are distributed in ascending order from top to bottom, and performing quantization and entropy coding on the transform coefficients to generate a code stream.

公开(公告)号：US10397612B2

公开(公告)日：2019-08-27

申请号：US16113531

申请日：2018-08-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xu Chen ,  Xiaozhen Zheng ,  Yongbing Lin

IPC: H04N19/597 ,  H04N19/176 ,  H04N19/184 ,  H04N19/44 ,  H04N19/105 ,  H04N19/70 ,  H04N19/593 ,  H04N19/182

Abstract: A three-dimensional (3D) video encoding method, decoding method, and related apparatus is disclosed. The decoding method may include decoding a video bitstream to obtain a single sample flag bit corresponding to a current image block in a current depth map, performing detection on a first adjacent prediction sampling point and a second adjacent prediction sampling point of the current image block in the current depth map if the single sample flag bit obtained by decoding indicates that a decoding mode corresponding to the current image block is a single depth intra-frame mode (SDM), and constructing a sample candidate set according to results of the detection on the first adjacent prediction sampling point and the second adjacent prediction sampling point, where the sample candidate set includes a first index location and a second index location, decoding the video bitstream to obtain a single sample index flag bit corresponding to the current image block.

公开(公告)号：US10264254B2

公开(公告)日：2019-04-16

申请号：US15958171

申请日：2018-04-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Changcai Lai ,  Yongbing Lin ,  Xiaozhen Zheng

IPC: H04N19/107 ,  H04N19/50 ,  H04N19/159 ,  H04N19/176 ,  H04N19/117 ,  H04N19/65 ,  H04N19/182

Abstract: A method for coding an image, a method for decoding an image, a method for processing image data, and devices thereof. The method for coding the image includes determining a current intra coding block that uses a constrained intra prediction method among current inter coded frames; determining that neighboring coding blocks that are adjacent to the current intra coding block include a neighboring inter coding block; updating image data in the neighboring inter coding block based on an invariable value or image data in a neighboring intra coding block included in the neighboring coding blocks; and coding the current intra coding block based on the updated image data in the neighboring inter coding block. Using the methods and devices, the error recovery capability of an intra coding block may be improved, and the image data decoding quality may be improved.

公开(公告)号：US10045044B2

公开(公告)日：2018-08-07

申请号：US15345948

申请日：2016-11-08

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Yongbing Lin

IPC: H04N19/51 ,  H04N19/52 ,  H04N19/463 ,  H04N19/436 ,  H04N19/46 ,  H04N19/105 ,  H04N19/176

Abstract: Relating to the field of video coding, a method and an apparatus for building a motion vector list for motion vector prediction, which solve a problem of building motion vector lists of at least two PUs in a same coding unit in a serial manner, and improve the parallel processing capability. The method includes: obtaining spatial neighboring blocks of a current prediction block, where the current prediction block is located inside a current coding unit; determining available neighboring blocks of the current prediction block according to a partition manner of the current coding unit, where the available neighboring blocks are located outside the current coding unit; and obtaining motion vector predictors from the available neighboring blocks in a preset sequence according to motion vector predictors of the available neighboring blocks, and adding the obtained motion vector predictors to the motion vector list.

公开(公告)号：US20170078701A1

公开(公告)日：2017-03-16

申请号：US15362448

申请日：2016-11-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xu Chen ,  Xiaozhen Zheng ,  Yongbing Lin

IPC: H04N19/597 ,  H04N19/176 ,  H04N19/184 ,  H04N19/44

CPC classification number: H04N19/597 ,  H04N19/105 ,  H04N19/176 ,  H04N19/182 ,  H04N19/184 ,  H04N19/44 ,  H04N19/593 ,  H04N19/70

Abstract: A three-dimensional video encoding method, decoding method, and related apparatus is disclosed. The decoding method may include decoding a video bitstream to obtain a single sample flag bit corresponding to a current image block in a current depth map, performing detection on a first adjacent prediction sampling point and a second adjacent prediction sampling point of the current image block in the current depth map if the single sample flag bit obtained by decoding indicates that a decoding mode corresponding to the current image block is a single depth intra-frame mode, and constructing a sample candidate set according to results of the detection on the first adjacent prediction sampling point and the second adjacent prediction sampling point, where the sample candidate set includes a first index location and a second index location, decoding the video bitstream to obtain a single sample index flag bit corresponding to the current image block.

Abstract translation: 公开了三维视频编码方法，解码方法和相关装置。 解码方法可以包括解码视频比特流以获得与当前深度图中的当前图像块相对应的单个采样标志位，对当前图像块的第一相邻预测采样点和第二相邻预测采样点执行检测， 如果通过解码获得的单个采样标志位指示与当前图像块相对应的解码模式是单一深度帧内模式，则根据第一相邻预测的检测结果构建样本候选集合， 采样点和第二相邻预测采样点，其中采样候选集合包括第一索引位置和第二索引位置，对视频比特流进行解码以获得与当前图像块对应的单个采样索引标志位。

公开(公告)号：US20170054997A1

公开(公告)日：2017-02-23

申请号：US15345948

申请日：2016-11-08

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Yongbing Lin

IPC: H04N19/52 ,  H04N19/463 ,  H04N19/46

CPC classification number: H04N19/52 ,  H04N19/105 ,  H04N19/176 ,  H04N19/436 ,  H04N19/46 ,  H04N19/463

Abstract: Relating to the field of video coding, a method and an apparatus for building a motion vector list for motion vector prediction, which solve a problem of building motion vector lists of at least two PUs in a same coding unit in a serial manner, and improve the parallel processing capability. The method includes: obtaining spatial neighboring blocks of a current prediction block, where the current prediction block is located inside a current coding unit; determining available neighboring blocks of the current prediction block according to a partition manner of the current coding unit, where the available neighboring blocks are located outside the current coding unit; and obtaining motion vector predictors from the available neighboring blocks in a preset sequence according to motion vector predictors of the available neighboring blocks, and adding the obtained motion vector predictors to the motion vector list.

Abstract translation: 关于视频编码领域，构建用于运动矢量预测的运动矢量列表的方法和装置，其解决了以串行方式在同一编码单元中构建至少两个PU的运动矢量列表的问题，并且改进 并行处理能力。 该方法包括：获取当前预测块的空间相邻块，其中当前预测块位于当前编码单元内; 根据当前编码单元的分区方式确定当前预测块的可用相邻块，其中可用相邻块位于当前编码单元外部; 以及根据所述可用相邻块的运动矢量预测器，以预设序列从所述可用相邻块获得运动矢量预测器，并且将所获得的运动矢量预测器相加到所述运动矢量列表。

公开(公告)号：US20170019667A1

公开(公告)日：2017-01-19

申请号：US15278469

申请日：2016-09-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Changcai Lai ,  Yongbing Lin ,  Xiaozhen Zheng

IPC: H04N19/107 ,  H04N19/65 ,  H04N19/176 ,  H04N19/182 ,  H04N19/117 ,  H04N19/159

CPC classification number: H04N19/107 ,  H04N19/117 ,  H04N19/159 ,  H04N19/176 ,  H04N19/182 ,  H04N19/50 ,  H04N19/65

Abstract: The present disclosure discloses a method for coding an image, a method for decoding an image, a method for processing image data, and devices thereof. The method for coding the image includes determining a current intra coding block that uses a constrained intra prediction method among current inter coded frames; determining that neighboring coding blocks that are adjacent to the current intra coding block include a neighboring inter coding block; updating image data in the neighboring inter coding block based on an invariable value or image data in a neighboring intra coding block included in the neighboring coding blocks; and coding the current intra coding block based on the updated image data in the neighboring inter coding block. Using the methods and devices, the error recovery capability of an intra coding block may be improved, and the image data decoding quality may be improved.

Abstract translation: 本公开公开了一种图像编码方法，图像解码方法，图像数据处理方法及其装置。 编码图像的方法包括：确定当前帧间编码帧中使用约束帧内预测方法的当前帧内编码块; 确定与当前帧内编码块相邻的相邻编码块包括相邻帧间编码块; 基于相邻编码块中包含的相邻帧内编码块中的不变值或图像数据来更新相邻帧间编码块中的图像数据; 并且基于相邻帧间编码块中的更新图像数据对当前帧内编码块进行编码。 使用这些方法和装置，可以提高帧内编码块的错误恢复能力，并且可以提高图像数据解码质量。