公开(公告)号：US20180288407A1

公开(公告)日：2018-10-04

申请号：US15758920

申请日：2016-09-12

Applicant: LG ELECTRONICS INC.

Inventor： Bumshik LEE ,  Sehoon YEA ,  Moonmo KOO

IPC: H04N19/105 ,  H04N19/107 ,  H04N19/122 ,  H04N19/176 ,  H04N19/182 ,  H04N19/18 ,  H04N19/61

CPC classification number: H04N19/105 ,  H04N19/107 ,  H04N19/11 ,  H04N19/12 ,  H04N19/122 ,  H04N19/134 ,  H04N19/159 ,  H04N19/176 ,  H04N19/18 ,  H04N19/182 ,  H04N19/463 ,  H04N19/61 ,  H04N19/90 ,  H04N19/91

Abstract: A method of encoding a video signal using a graph-based transformation includes: generating a residual block using a prediction block generated according to an intra prediction mode; obtaining at least one of a self-loop weight indicating a weight of boundary pixels in the residual block or a correlation coefficient indicating an inter-pixel correlation, on the basis of a prediction angle corresponding to the intra prediction mode; generating a graph on the basis of at least one of the self-loop weight or the correlation coefficient; determining a graph-based transformation kernel on the basis of the graph; and performing a transform for the residual block using the graph-based transformation kernel.

公开(公告)号：US20180041760A1

公开(公告)日：2018-02-08

申请号：US15550721

申请日：2016-02-04

Applicant: LG Electronics Inc.

Inventor： Moonmo KOO ,  Jin HEO ,  Eunyong SON ,  Sehoon YEA ,  Seungwook PARK ,  Kyuwoon KIM ,  Bumshik LEE

IPC: H04N19/14 ,  H04N19/61

Abstract: The present invention provides a method of decoding a video signal using graph-based transform comprising the steps: extracting prediction unit partition information of a current coding unit from the video signal; obtaining a graph-based transform kernel from predetermined table information based on the prediction unit partition information; and performing an inverse-transform of a transform unit using the graph-based transform kernel, wherein the graph-based transform kernel corresponds to at least one of the prediction unit partition information and an edge weight, and the edge weight is a predetermined value representing a correlation between pixels.

公开(公告)号：US20170180755A1

公开(公告)日：2017-06-22

申请号：US15118392

申请日：2015-03-10

Applicant: LG ELECTRONICS INC.

Inventor： Sunmi YOO ,  Junghak NAM ,  Sehoon YEA

IPC: H04N19/597 ,  H04N19/513 ,  H04N19/172 ,  H04N19/176 ,  H04N19/105 ,  H04N19/139

CPC classification number: H04N19/597 ,  H04N19/105 ,  H04N19/139 ,  H04N19/172 ,  H04N19/176 ,  H04N19/30 ,  H04N19/517 ,  H04N19/521 ,  H04N2013/0085

Abstract: The present invention provides a 3D video decoding method and device. A 3D video decoding method according to the present invention comprises the steps of: determining whether to apply motion vector inheritance for inducing a motion vector of a depth picture, using motion information of a texture picture; when it is determined to apply the motion vector inheritance, inducing a current block within the depth picture to a sub-block sized depth sub-block for the motion vector inheritance; inducing a motion vector of the depth sub-block from a texture block within the texture picture corresponding to the depth sub-block; and inducing a reconstructed sample of the current block by generating a prediction sample of the depth sub-block on the basis of the motion vector of the depth sub-block.

公开(公告)号：US20170150178A1

公开(公告)日：2017-05-25

申请号：US15319335

申请日：2015-09-25

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/597 ,  H04N19/124 ,  H04N19/44 ,  H04N19/51 ,  H04N19/172

CPC classification number: H04N19/597 ,  H04N19/124 ,  H04N19/17 ,  H04N19/172 ,  H04N19/44 ,  H04N19/51

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: obtaining a disparity value on the basis of a reference view and a predetermined value; deriving movement information of a current block in a depth picture on the basis of the disparity value; and generating a prediction sample of the current block on the basis of the movement information, wherein the reference view is a view of a reference picture in a reference picture list. According to the present invention, even when a base view cannot be accessed, a disparity vector can be derived on the basis of an available reference view index in a decoded picture buffer (DPB), and coding efficiency can be enhanced.

公开(公告)号：US20160295240A1

公开(公告)日：2016-10-06

申请号：US15028806

申请日：2014-10-20

Applicant: LG ELECTRONICS INC.

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

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

CPC classification number: H04N19/597 ,  H04N19/105 ,  H04N19/119 ,  H04N19/137 ,  H04N19/139 ,  H04N19/176 ,  H04N19/513 ,  H04N19/521

Abstract: The present invention relates to a method for constituting a merge candidate list by using a view synthesis prediction (VSP) and the like in multi-view video coding. The method for constituting the merge candidate list according to the present invention comprises the steps of: determining a prediction mode for a current block; inducing, as a merge candidate, motion information from neighboring blocks of the current block when the prediction mode for the current block is a merge mode or a skip mode; and constituting the merge candidate list by using the motion information of the neighboring blocks and the deep parity information induced from the neighboring blocks of the current block.

Abstract translation: 本发明涉及一种通过在多视点视频编码中使用视图合成预测（VSP）等来构成合并候选列表的方法。 根据本发明的用于构成合并候选列表的方法包括以下步骤：确定当前块的预测模式; 当当前块的预测模式是合并模式或跳过模式时，将来自当前块的相邻块的运动信息作为合并候选; 并通过使用相邻块的运动信息和从当前块的相邻块引起的深奇偶校验信息来构成合并候选列表。

公开(公告)号：US20160037179A1

公开(公告)日：2016-02-04

申请号：US14783345

申请日：2014-04-11

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/513 ,  H04N19/176 ,  H04N19/597 ,  H04N19/44

CPC classification number: H04N19/513 ,  H04N19/176 ,  H04N19/44 ,  H04N19/52 ,  H04N19/597

Abstract: The present invention relates to a video signal processing method and device capable of: obtaining a reference view block by using a predetermined motion vector; obtaining the depth value of a reference block which corresponds to the reference view block; obtaining an inter-view motion vector for a current block by using at least one depth value of the reference depth block; and decoding the current block by using the inter-view motion vector.

Abstract translation: 本发明涉及一种视频信号处理方法和装置，其能够：通过使用预定的运动矢量来获得参考视图块; 获得与参考视图块相对应的参考块的深度值; 通过使用参考深度块的至少一个深度值来获得当前块的视角间运动矢量; 并通过使用视角间的运动矢量解码当前块。

公开(公告)号：US20150358616A1

公开(公告)日：2015-12-10

申请号：US14759383

申请日：2014-01-08

Applicant: LG ELECTRONICS INC.

Inventor： Jin HEO ,  Jiwook JUNG ,  Sehoon YEA ,  Moonmo KOO ,  Taesup KIM ,  Jaewon SUNG ,  Eunyong SON

IPC: H04N19/105 ,  H04N19/44 ,  H04N19/597 ,  H04N19/176 ,  H04N19/52

CPC classification number: H04N19/105 ,  H04N19/176 ,  H04N19/44 ,  H04N19/52 ,  H04N19/597

Abstract: The present invention relates to a method and an apparatus for coding a video signal, and more specifically, a motion vector between viewpoints is obtained by using a depth value of a depth block, which corresponds to a current texture block, and an illumination difference is compensated. By obtaining the motion vector between the viewpoints by using the depth value of the depth block, which corresponds to the current texture block, and compensating the illumination difference, the present invention can obtain an accurate prediction value of the current texture block and thus increase accuracy in inter-prediction between the viewpoints.

Abstract translation: 本发明涉及一种用于对视频信号进行编码的方法和装置，更确切地说，通过使用与当前纹理块对应的深度块的深度值来获得视点之间的运动矢量，并且照度差是 补偿。 通过使用与当前纹理块对应的深度块的深度值并补偿照明差来获得视点之间的运动矢量，本发明可以获得当前纹理块的精确预测值，从而提高精度 在视点之间的相互预测。

公开(公告)号：US20210195241A1

公开(公告)日：2021-06-24

申请号：US16074364

申请日：2017-02-01

Applicant: LG Electronics Inc.

Inventor： Hilmi E. EGILMEZ ,  Onur G. GULERYUZ ,  Jana EHMANN ,  Sehoon YEA

IPC: H04N19/60 ,  H04N19/124 ,  H04N19/88 ,  H04N19/18 ,  G06F7/78

Abstract: The present invention provides a method for performing a transform, the method comprising the steps of: deriving a row transform set, a column transform set, and a permutation matrix on the basis of a given transform matrix (H) and error tolerance parameter; obtaining a row-column transform (RCT) coefficient on the basis of the row transform set, the column transform set, and the permutation matrix; and performing a quantization and an entropy encoding on the RCT coefficient, wherein the permutation matrix represents a matrix obtained by permutating a row of an identity matrix.

公开(公告)号：US20180213233A1

公开(公告)日：2018-07-26

申请号：US15744665

申请日：2016-07-15

Applicant: LG Electronics Inc.

Inventor： Moonmo KOO ,  Bumshik LEE ,  Sehoon YEA ,  Kyuwoon KIM

IPC: H04N19/146 ,  H04N19/124 ,  H04N19/91 ,  H04N19/159 ,  H04N19/80

CPC classification number: H04N19/146 ,  H04N19/12 ,  H04N19/124 ,  H04N19/14 ,  H04N19/147 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46 ,  H04N19/513 ,  H04N19/80 ,  H04N19/91

Abstract: The present invention provides a method for decoding a video signal by using a graph-based transform, comprising the steps of: parsing a transform index from the video signal; generating a line graph on the basis of edge information on a target unit; aligning transform vectors for each of segments of the line graph on the basis of a transform type corresponding to the transform index; acquiring a transform kernel by realigning the transform vectors for each of segments of the line graph according to a predetermined condition; and performing an inverse transform for the target unit on the basis of the transform kernel.

公开(公告)号：US20180167618A1

公开(公告)日：2018-06-14

申请号：US15579353

申请日：2016-06-07

Applicant: LG Electronics Inc.

Inventor： Bumshik LEE ,  Sehoon YEA ,  Moonmo KOO

IPC: H04N19/14 ,  H04N19/176 ,  H04N19/60 ,  H04N19/105 ,  H04N19/124

CPC classification number: H04N19/14 ,  H04N19/105 ,  H04N19/12 ,  H04N19/124 ,  H04N19/176 ,  H04N19/60

Abstract: The present invention provides a method for decoding a video signal using a graph-based transform including receiving, from the video signal, a transform index for a target block; deriving a graph-based transform kernel corresponding to the transform index, and the graph-based transform kernel is determined based on boundary information, which represents a property of a signal for a block boundary; and decoding the target block based on the graph-based transform kernel.