公开(公告)号：US20180035112A1

公开(公告)日：2018-02-01

申请号：US15550347

申请日：2016-02-03

Applicant: LG Electronics Inc.

Inventor： Chulkeun KIM ,  Junghak NAM ,  Seungwook PARK ,  Sehoon YEA

IPC: H04N19/117 ,  H04N19/196 ,  H04N19/159 ,  H04N19/82 ,  H04N19/176

CPC classification number: H04N19/117 ,  H04N19/159 ,  H04N19/176 ,  H04N19/196 ,  H04N19/523 ,  H04N19/59 ,  H04N19/70 ,  H04N19/80 ,  H04N19/82

Abstract: Disclosed is a method for decoding a video signal, including deriving position information of an integer sample within a target block, performing non-uniform interpolation filtering on the integer sample based on the position information of the integer sample, deriving an interpolation sample value according to a result of the non-uniform interpolation filtering, and obtaining a prediction sample value using the interpolation sample value, wherein the non-uniform interpolation filtering is different in at least one of a phase interval or the number of interpolation samples, the phase interval represents an interval between interpolation samples, and the number of interpolation samples represents the number of interpolation samples generated between integer samples.

公开(公告)号：US20170289573A1

公开(公告)日：2017-10-05

申请号：US15510500

申请日：2015-09-07

Applicant: LG ELECTRONICS INC.

Inventor： Sunmi YOO ,  Jungdong SEO ,  Junghak NAM ,  Sehoon YEA

IPC: H04N19/597 ,  H04N19/139 ,  H04N19/159 ,  H04N19/52 ,  H04N19/513 ,  H04N19/176 ,  H04N19/105

CPC classification number: H04N19/597 ,  H04N19/105 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176 ,  H04N19/52 ,  H04N19/521 ,  H04N19/70

Abstract: The present invention relates to a device and a method for coding a multi-view video, a residual prediction method, according to the present invention, comprising the steps of: deriving a disparity vector of a current block; performing residual prediction on the current block on the basis of the disparity vector; and generating a residual prediction sample, wherein the disparity vector is not derived on the basis of a neighboring block of the current block, but is derived from a preset default vector. According to the present invention, the effect of prediction may be increased by performing residual prediction on the current block according to a certain condition, not only when the disparity vector is induced but also when the disparity vector is not induced from the neighboring block of the current block.

公开(公告)号：US20170280160A1

公开(公告)日：2017-09-28

申请号：US15510807

申请日：2015-09-07

Applicant: LG Electronics Inc.

Inventor： Sunmi YOO ,  Jungdong SEO ,  Junghak NAM ,  Sehoon YEA

IPC: H04N19/597 ,  H04N19/176 ,  H04N19/70 ,  H04N19/50

CPC classification number: H04N19/597 ,  H04N19/105 ,  H04N19/146 ,  H04N19/176 ,  H04N19/50 ,  H04N19/593 ,  H04N19/70

Abstract: The present invention relates to a device and a method for coding a 3D video, a decoding method, according to the present invention, comprising the steps of: receiving a single depth mode (SDM) flag information indicating whether the SDM is applied to a current block; and if the SDM is applied to the current block, generating a prediction sample on the basis of a first candidate and a second candidate derived by using spatial neighboring reference samples of the current block, wherein the number of the spatial neighboring reference samples is two, and among the neighboring reference samples, the first neighboring reference sample is positioned on the left side of the current block, and the second neighboring reference sample is positioned on the upper side of the current block. According to the present invention, the current block may be predicted on the basis of one representative value derived by using the predetermined neighboring reference sample, and the complexity of an operation may be decreased, and coding efficiency may be increased.

公开(公告)号：US20160261888A1

公开(公告)日：2016-09-08

申请号：US15028905

申请日：2014-10-20

Applicant: LG ELECTRONICS INC.

Inventor： Junghak NAM ,  Jin HEO ,  Taesup KIM ,  Jungdong SEO ,  Sehoon YEA

IPC: H04N19/597 ,  H04N19/70 ,  H04N19/44

CPC classification number: H04N19/597 ,  H04N19/44 ,  H04N19/52 ,  H04N19/70

Abstract: The present invention relates to a video decoding apparatus and a method for decoding a multi-view video, and the video decoding apparatus according to the present invention comprises: an entropy-decoding unit for entropy-decoding a bitstream and outputting video information required for decoding a current block in a depth picture; a memory for saving pictures referenced when decoding the current block; and a prediction unit for inducing a prediction sample of the current block, by using motion information of a texture picture within the same view as motion information of the current block.

Abstract translation: 视频解码装置及其解码方法技术领域本发明涉及一种视频解码装置和多视点视频解码方法，本发明的视频解码装置包括：熵解码单元，用于对比特流进行熵解码，并输出解码所需的视频信息 深度图片中的当前块; 用于保存解码当前块时参考的图像的存储器; 以及预测单元，用于通过使用与当前块的运动信息相同的视图内的纹理图像的运动信息来诱导当前块的预测样本。

公开(公告)号：US20160050438A1

公开(公告)日：2016-02-18

申请号：US14782440

申请日：2014-04-11

Applicant: LG ELECTRONICS INC.

Inventor： Jin HEO ,  Junghak NAM ,  Jiwook JUNG ,  Sehoon YEA ,  Eunyong SON

IPC: H04N19/597 ,  H04N19/44 ,  H04N19/503 ,  H04N19/176 ,  H04N19/182

CPC classification number: H04N19/597 ,  H04N19/176 ,  H04N19/182 ,  H04N19/44 ,  H04N19/503 ,  H04N19/593

Abstract: The present invention relates to a video signal processing method and device capable of: obtaining an intra-prediction mode for a current depth block; determining a reference neighboring pixel region adjacent to the current depth block by using the intra-prediction mode; determining a first reference neighboring pixel region and a second reference neighboring pixel region; determining a first current depth block region and a second current depth block region comprised in the current depth block; obtaining a first prediction value for the first current depth block region by using the representative value of the first reference neighboring pixel region; and obtaining a second prediction value for the second current depth block region by using the representative value of the second reference neighboring pixel region.

Abstract translation: 本发明涉及一种视频信号处理方法和装置，其能够：获得当前深度块的帧内预测模式; 通过使用帧内预测模式确定与当前深度块相邻的参考相邻像素区域; 确定第一参考相邻像素区域和第二参考相邻像素区域; 确定包括在当前深度块中的第一当前深度块区域和第二当前深度块区域; 通过使用第一参考相邻像素区域的代表值来获得第一当前深度块区域的第一预测值; 以及通过使用第二参考相邻像素区域的代表值来获得第二当前深度块区域的第二预测值。

公开(公告)号：US20250150585A1

公开(公告)日：2025-05-08

申请号：US19016350

申请日：2025-01-10

Applicant: LG Electronics Inc.

Inventor： Junghak NAM ,  Jangwon CHOI

IPC: H04N19/117 ,  H04N19/132 ,  H04N19/169 ,  H04N19/186 ,  H04N19/46 ,  H04N19/80

Abstract: According to one embodiment of the present document, a cross component adaptive loop filtering (CCALF) process may be performed. The CCALF process can enhance the filtering performance for chroma components and improve the subjective/objective image quality of a picture.

公开(公告)号：US20250150583A1

公开(公告)日：2025-05-08

申请号：US18730094

申请日：2023-02-08

Applicant: LG Electronics Inc.

Inventor： Sunmi YOO ,  Junghak NAM ,  Hyeongmoon JANG ,  Jangwon CHOI

IPC: H04N19/11 ,  H04N19/105 ,  H04N19/176

Abstract: An image decoding/encoding method and apparatus, according to the present disclosure, may comprise: deriving an intra-prediction mode of a current block on the basis of a gradient between at least two samples in a peripheral region adjacent to the current block; configuring a reference sample of the current block; and generating a prediction block of the current block on the basis of the intra-prediction mode and the reference sample.

公开(公告)号：US20250150579A1

公开(公告)日：2025-05-08

申请号：US19016839

申请日：2025-01-10

Applicant: LG ELECTRONICS INC.

Inventor： Hyeongmoon JANG ,  Naeri PARK ,  Junghak NAM

IPC: H04N19/105 ,  H04N19/132 ,  H04N19/137 ,  H04N19/159 ,  H04N19/176

Abstract: According to the disclosure of this document, in subblock-based temporal motion vector prediction (sbTMVP), a subblock position for deriving a motion vector in units of a subblock can be efficiently calculated, and through this, video/image coding efficiency can be improved and hardware implementation can be simplified.

公开(公告)号：US20250106393A1

公开(公告)日：2025-03-27

申请号：US18899429

申请日：2024-09-27

Applicant: LG ELECTRONICS INC.

Inventor： Hendry TAN ,  Junghak NAM ,  Jaehyun LIM ,  Seunghwan KIM

IPC: H04N19/117 ,  H04N19/70

Abstract: An image decoding method including obtaining a neural network post-filter (NNPF) group (NNPFG) characteristics supplemental enhancement information (SEI) message specifying information related to a group of two or more NNPFs to be applied to image data; determining a grouping type of the group of the two or more NNPFs based on the message; based on the grouping type indicating that only one of the group of the two or more NNPFs is to be selected to be applied, or that the group of the two or more NNPFs are to be applied in parallel, obtaining a value corresponding to a purpose of each of the group of the two or more NNPFs; and applying at least one of the group of the two or more NNPFs to the image data based the obtained value.

公开(公告)号：US20250071297A1

公开(公告)日：2025-02-27

申请号：US18942083

申请日：2024-11-08

Applicant: LG ELECTRONICS INC.

Inventor： Sunmi YOO ,  Junghak NAM ,  Jungah CHOI

IPC: H04N19/176 ,  H04N19/132 ,  H04N19/159 ,  H04N19/593 ,  H04N19/70

Abstract: An image decoding method performed by a decoding apparatus according to the present document comprises the steps of: deriving prediction samples for a first sample and a second sample of the current block on the basis of BDPCM-related information about the current block and neighboring samples of the current block; deriving residual samples for the first sample and the second sample on the basis of a residual coefficient of the first sample and a modified residual coefficient of the second sample; and storing, as the intra prediction mode of the current block, the intra prediction mode in the prediction direction of the current block, which is derived on the basis of a BDPCM direction flag.