公开(公告)号：US20180309983A1

公开(公告)日：2018-10-25

申请号：US15768773

申请日：2016-10-24

Applicant: LG ELECTRONICS INC.

Inventor： Jin HEO ,  Eunyong SON ,  Junghak NAM

IPC: H04N19/105 ,  H04N19/147 ,  H04N19/11 ,  H04N19/176 ,  H04N19/44 ,  H04N19/139 ,  H04N19/13 ,  H04N19/91

CPC classification number: H04N19/105 ,  H04N19/11 ,  H04N19/117 ,  H04N19/13 ,  H04N19/139 ,  H04N19/147 ,  H04N19/176 ,  H04N19/44 ,  H04N19/91

Abstract: According to the present invention, an image decoding method performed by a decoding device comprises the steps of: deriving a prediction mode of a current block; generating a prediction block of the current block on the basis of the prediction mode of the current block; deriving a neighboring block of the current block; deriving correlation information on the basis of a reconstruction block of the neighboring block and a prediction block of the neighboring block; deriving a modified prediction block of the current block on the basis of the prediction block of the current block and the correlation information; and deriving a reconstruction block of the current block on the basis of the modified prediction block. According to the present invention, a current block can be predicted in consideration of the correlation between a prediction sample and a reconstruction sample of a neighboring block, and a complicated image can be more efficiently reconstructed through the prediction.

公开(公告)号：US20170310993A1

公开(公告)日：2017-10-26

申请号：US15517712

申请日：2015-10-06

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/597 ,  H04N19/513 ,  H04N19/44

CPC classification number: H04N19/597 ,  H04N13/161 ,  H04N19/44 ,  H04N19/513 ,  H04N19/52 ,  H04N2013/0081

Abstract: The present invention relates to 3D video coding device and method. A decoding method according to the present invention provides a 3D video decoding method. A decoding method comprises the steps of: deriving a disparity vector with respect to a current block; deriving the location of a corresponding sample on a reference view on the basis of the disparity vector; deriving the location of a reference sample on the basis of the location of the corresponding sample; and deriving movement information of a prediction block that covers the location of the reference sample. According to the present invention, when a corresponding block in a reference view is derived by means of a disparity vector, movement information of the corresponding block can be derived in accordance with movement information compression, a buffer load of an encoder and a decoder can be reduced, and coding efficiency can be enhanced by having the amount of information being processed reduced.

公开(公告)号：US20160255371A1

公开(公告)日：2016-09-01

申请号：US15029941

申请日：2014-10-20

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/597 ,  H04N19/11

CPC classification number: H04N19/597 ,  H04N19/11 ,  H04N19/159 ,  H04N19/187

Abstract: The present invention provides a method for coding and decoding a 3D video comprising a depth-map picture. The method for coding a 3D video, according to one embodiment of the present invention, comprises the steps of: inducing a first index value with respect to a first sample of a current block by mapping a depth lookup table (DLT) on a predicted depth value of the first sample of the current block which has been induced based on an intra-prediction mode of the current block in a depth map picture; inducing a second index value with respect to the first sample of the current block by mapping the DLT on an original depth value of the first sample of the current block; inducing a residual index value between the first index value and the second index value with respect to the first sample of the current block; and transforming, quantizing, and entropy-coding the residual index value.

Abstract translation: 本发明提供了一种用于对包含深度图图像的3D视频进行编码和解码的方法。 根据本发明的一个实施例的用于对3D视频进行编码的方法包括以下步骤：通过将深度查找表（DLT）映射到预测深度上来引导相对于当前块的第一样本的第一索引值 基于深度图图像中的当前块的帧内预测模式感应的当前块的第一样本的值; 通过将DLT映射到当前块的第一样本的原始深度值上来，相对于当前块的第一样本来诱导第二索引值; 在所述第一指数值和所述第二指数值之间相对于所述当前块的所述第一样本感知剩余指数值; 并对剩余指标值进行变换，量化和熵编码。

公开(公告)号：US20160255369A1

公开(公告)日：2016-09-01

申请号：US15028649

申请日：2014-10-20

Applicant: LG ELECTRONICS INC.

Inventor： Junghak NAM ,  Jungdong SEO ,  Sunmi YOO ,  Sehoon YEA ,  Jin HEO ,  Taesup KIM ,  Moonmo KOO

IPC: H04N19/597 ,  H04N19/176 ,  H04N19/182 ,  H04N19/52

CPC classification number: H04N19/597 ,  H04N19/176 ,  H04N19/182 ,  H04N19/52

Abstract: The present invention relates to a video decoding apparatus and method for decoding a multi-view video, and the method for decoding a video, according to the present invention, is the video decoding method for decoding a multi-view video, comprising the steps of: inducing video information required for decoding a current block by entropy-decoding a bitstream; inducing a first disparity vector based on a neighboring block of the current block in the same view by using the video information, inducing a second disparity vector by using the first disparity vector and a reference view depth, and inducing a third disparity vector using the difference between the first disparity vector and the second disparity vector; inducing a prediction sample of the current block by using one of the first disparity vector, the second disparity vector, or the third disparity vector; and applying filtering to a current picture which has been restored using the prediction sample.

Abstract translation: 本发明涉及用于解码多视点视频的视频解码装置和方法，以及根据本发明的解码视频的方法，是用于对多视点视频进行解码的视频解码方法，包括以下步骤： ：通过对比特流进行熵解码来诱导解码当前块所需的视频信息; 通过使用视频信息在同一视图中基于当前块的相邻块来诱导第一视差向量，通过使用第一视差向量和参考视图深度来诱导第二视差向量，并且使用差异来诱导第三视差矢量 在第一视差矢量和第二视差矢量之间; 通过使用第一视差矢量，第二视差矢量或第三视差矢量中的一个来诱导当前块的预测采样; 并对使用预测样本恢复的当前图像应用滤波。

公开(公告)号：US20160165259A1

公开(公告)日：2016-06-09

申请号：US14903920

申请日：2014-07-18

Applicant: LG ELECTRONICS INC.

Inventor： Junghak NAM ,  Sehoon YEA ,  Taesup KIM ,  Sunmi YOO ,  Jiwook JUNG ,  Jin HEO

IPC: H04N19/52 ,  H04N19/176 ,  H04N19/136

CPC classification number: H04N19/52 ,  H04N19/136 ,  H04N19/176 ,  H04N19/533 ,  H04N19/597

Abstract: The present invention relates to a method and an apparatus for processing a video signal, capable of: obtaining a temporary inter-view motion vector corresponding to a first unit; obtaining virtual depth information corresponding to the first unit by using the temporary inter-view motion vector; obtaining an inter-view motion vector corresponding to the first unit by using the virtual depth information corresponding to the first unit; and updating the inter-view motion vector corresponding to the first unit.

Abstract translation: 本发明涉及一种用于处理视频信号的方法和装置，其能够：获得对应于第一单元的临时视角间运动矢量; 通过使用临时的视角间运动矢量来获得与第一单元相对应的虚拟深度信息; 通过使用与第一单元对应的虚拟深度信息来获得与第一单元相对应的视角间运动矢量; 以及更新与第一单元相对应的视角间运动矢量。

公开(公告)号：US20160050437A1

公开(公告)日：2016-02-18

申请号：US14780781

申请日：2014-04-09

Applicant: LG ELECTRONICS INC.

Inventor： Junghak NAM ,  Sehoon YEA ,  Taesup KIM ,  Jiwook JUNG ,  Jin HEO

IPC: H04N19/597 ,  H04N19/176

CPC classification number: H04N19/597 ,  H04N19/176

Abstract: A video signal processing method according to the present invention comprises: obtaining a depth prediction value of a current block; recovering a depth residual per sample of the current block according to an SDC mode indicator; and recovering a depth value of the current block using the depth prediction value and the recovered depth residual. The present invention adaptively uses an SDC mode according to an SDC mode indicator and further uses an SDC mode and/or depth lookup table, thereby increasing encoding efficiency for depth data.

Abstract translation: 根据本发明的视频信号处理方法包括：获得当前块的深度预测值; 根据SDC模式指示器恢复当前块的每个样本的深度残差; 以及使用深度预测值和恢复的深度残差来恢复当前块的深度值。 本发明根据SDC模式指示符自适应地使用SDC模式，并进一步使用SDC模式和/或深度查找表，从而提高深度数据的编码效率。

公开(公告)号：US20250126286A1

公开(公告)日：2025-04-17

申请号：US18934064

申请日：2024-10-31

Applicant: LG ELECTRONICS INC.

Inventor： Jaehyun LIM ,  Naeri PARK ,  Jungdong SEO ,  Junghak NAM

IPC: H04N19/51 ,  H04N19/176 ,  H04N19/513 ,  H04N19/523 ,  H04N19/53 ,  H04N19/70

Abstract: Disclosed are an inter prediction mode-based image processing method and an apparatus therefor. Particularly, a method for processing an image on the basis of inter prediction may comprise the steps of: determining whether a motion vector scale adaptation is applied to a block; up-scaling a down-scaled MVD(Motion Vector Difference) when the motion vector scale adaptation is applied to the block; deriving a MV(Motion Vector) for the block, using the up-scaled MVD and a MVP(Motion Vector Predictor); and generating a predictive block of the block, using the derived MV.

公开(公告)号：US20250080720A1

公开(公告)日：2025-03-06

申请号：US18726662

申请日：2022-12-28

Applicant: LG Electronics Inc.

Inventor： Naeri PARK ,  Jaehyun LIM ,  Sunmi YOO ,  Junghak NAM ,  Hyeongmoon JANG ,  Jangwon CHOI

IPC: H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/70

Abstract: An image encoding/decoding method and device according to the present disclosure can generate a candidate list of a current block, add an average candidate to the candidate list of the current block, and perform inter-prediction on the current block on the basis of the candidate list including the average candidate. Here, the candidate list includes a plurality of affine candidates, the plurality of affine candidates include at least one from among an inherited candidate, a constructed candidate, and a history-based candidate, and the average candidate can be generated on the basis of two affine candidates selected according to a predetermined priority from the candidate list.

公开(公告)号：US20250071318A1

公开(公告)日：2025-02-27

申请号：US18726205

申请日：2023-01-04

Applicant: LG Electronics Inc.

Inventor： Hyeongmoon JANG ,  Naeri PARK ,  Junghak NAM

IPC: H04N19/52 ,  H04N19/139 ,  H04N19/176 ,  H04N19/184

Abstract: An image decoding/encoding method and device according to the present disclosure may configure a merge candidate list of a current block, derive motion information of the current block on the basis of the merge candidate list and a merge index, and perform inter prediction for the current block on the basis of the motion information of the current block. Here, the merge candidate list may include a candidate derived using an affine motion model of an affine block coded by affine prediction.

公开(公告)号：US20240357130A1

公开(公告)日：2024-10-24

申请号：US18701082

申请日：2022-12-09

Applicant: LG Electronics Inc.

Inventor： Naeri PARK ,  Jaehyun LIM ,  Junghak NAM ,  Jangwon CHOI

IPC: H04N19/159 ,  H04N19/117 ,  H04N19/139 ,  H04N19/176 ,  H04N19/59 ,  H04N19/80

CPC classification number: H04N19/159 ,  H04N19/117 ,  H04N19/139 ,  H04N19/176 ,  H04N19/59 ,  H04N19/80

Abstract: An image decoding method performed by a decoding device, according to the present disclosure, comprises the steps of: deriving an intra block copy (IBC) mode as a prediction mode of a current block; deriving one or more block vectors and/or scaling information for the IBC mode; deriving a revised reference block for the current block by using the one or more block vectors and/or the scaling information in a current picture; deriving a prediction sample of the current block on the basis of the revised reference block; and generating a reconstructed picture on the basis of the prediction sample.