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：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：US20190052875A1

公开(公告)日：2019-02-14

申请号：US15758967

申请日：2016-08-25

Applicant: LG ELECTRONICS INC.

Inventor： Eunyong SON ,  Seungwook PARK ,  Yongjoon JEON ,  Jin HEO ,  Moonmo KOO ,  Sunmi YOO

IPC: H04N19/11 ,  H04N19/105 ,  H04N19/593 ,  H04N19/82 ,  H04N19/176

Abstract: An intra prediction method includes the steps of: acquiring intra prediction mode information from a bitstream; deriving neighboring samples of a current block; determining an intra prediction mode for the current block on the basis of the intra prediction mode information; deriving a prediction sample of the current block on the basis of the intra prediction mode and the neighboring samples; determining filtering reference samples for the prediction sample on the basis of the intra prediction mode; and deriving a filtered prediction sample by applying filtering to the prediction sample on the basis of the filtering reference samples. According to the present invention, a prediction sample can be adaptively filtered according to the intra prediction mode, and intra prediction performance can be improved.

公开(公告)号：US20180309984A1

公开(公告)日：2018-10-25

申请号：US15768992

申请日：2016-09-27

Applicant: LG ELECTRONICS INC.

Inventor： Eunyong SON ,  Jin HEO ,  Seoungwook PARK ,  Sehoon YEA

IPC: H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/52

Abstract: An image decoding method, which is performed by a decoding device according to the present invention, comprises the steps of: acquiring the information on an intra-prediction mode of a current block from a received bit stream; deriving neighboring reference samples of the current block; deriving a first prediction value for a current sample of the current block on the basis of the intra-prediction mode and the neighboring reference samples; deriving a second prediction value for the current sample on the basis of adjacent samples of the current sample; and deriving a prediction value for the current sample on the basis of the first prediction value and the second prediction value. According to the present invention, the intra-prediction value can be derived on the basis of the adjacent samples of the current sample within the present block, and the intra-prediction accuracy can be improved therethrough.

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：US20180295384A1

公开(公告)日：2018-10-11

申请号：US15762946

申请日：2016-09-08

Applicant: LG ELECTRONICS INC.

Inventor： Eunyong SON ,  Jin HEO ,  Seungwook PARK ,  Sehoon YEA

IPC: H04N19/61 ,  H04N19/105 ,  H04N19/11 ,  H04N19/176 ,  H04N19/44 ,  H04N19/96

CPC classification number: H04N19/61 ,  H04N19/105 ,  H04N19/11 ,  H04N19/176 ,  H04N19/182 ,  H04N19/196 ,  H04N19/44 ,  H04N19/96

Abstract: An intra prediction method includes: receiving intra prediction mode information through a bitstream; deriving an intra prediction mode of a current block as a first intra directional mode on the basis of the intra prediction mode information; deriving first neighboring samples of the current block; deriving a reference sample adjacent to a target sample in the current block on the basis of a prediction direction of the first intra directional mode; deriving second neighboring samples of a neighboring block to which the reference sample belongs; determining a modified prediction direction on the basis of a comparison between the reference sample and at least one of the second neighboring samples; and deriving a prediction value for the target sample on the basis of the modified prediction direction and the first neighboring samples.

公开(公告)号：US20180213224A1

公开(公告)日：2018-07-26

申请号：US15746139

申请日：2016-04-22

Applicant: LG Electronics Inc.

Inventor： Eunyong SON ,  Yongjoon JEON ,  Jin HEO ,  Seungwook PARK ,  Moonmo KOO ,  Hyeongmoon JANG

IPC: H04N19/11 ,  H04N19/124 ,  H04N19/159 ,  H04N19/176 ,  H04N19/96 ,  H04N19/52

CPC classification number: H04N19/11 ,  H04N19/124 ,  H04N19/159 ,  H04N19/176 ,  H04N19/52 ,  H04N19/593 ,  H04N19/96

Abstract: An intra prediction method performed by a decoding device, according to the present invention, comprises the steps of: deriving an intra prediction mode for a current block; deriving neighboring samples of the current block; and generating a prediction sample for the current block by using at least one of the neighboring samples according to the intra prediction mode, wherein the derived neighboring samples include left neighboring samples, upper left neighboring samples, upper neighboring samples, right neighboring samples, lower right neighboring samples, and lower neighboring samples of the current block. According to the present invention, intra prediction performance can be improved by using expanded neighboring reference samples, and coding efficiency for CUs can be improved.

公开(公告)号：US20180041768A1

公开(公告)日：2018-02-08

申请号：US15553078

申请日：2016-02-15

Applicant: LG Electronics Inc.

Inventor： Moonmo KOO ,  Sehoon YEA ,  Eunyong SON ,  Jin HEO

IPC: H04N19/513 ,  H04N19/176 ,  H04N19/132

CPC classification number: H04N19/513 ,  H04N19/103 ,  H04N19/117 ,  H04N19/119 ,  H04N19/124 ,  H04N19/132 ,  H04N19/14 ,  H04N19/17 ,  H04N19/176 ,  H04N19/52 ,  H04N19/537 ,  H04N19/70 ,  H04N19/96

Abstract: A polygon unit-based image processing method, and a device for the same are disclosed. Specifically, a method for decoding an image on the basis of a polygon unit can comprise the steps of: deriving a motion vector predictor for a polygon apex forming the polygon unit; deriving a motion vector for the polygon apex on the basis of a motion vector difference for the polygon apex and the motion vector predictor; and deriving a prediction sample for the polygon unit from a division unit, which is specified by the motion vector, in a reference picture.

公开(公告)号：US20180007388A1

公开(公告)日：2018-01-04

申请号：US15652078

申请日：2017-07-17

Applicant: LG ELECTRONICS INC.

Inventor： Jaewon SUNG ,  Sehoon YEA ,  Eunyong SON ,  Jiwook JUNG

IPC: H04N19/597 ,  H04N19/527 ,  H04N19/52 ,  H04N19/96 ,  H04N13/00

CPC classification number: H04N13/161 ,  H04N19/52 ,  H04N19/527 ,  H04N19/597 ,  H04N19/96 ,  H04N2013/0085

Abstract: A video decoding method that includes: receiving information for deriving motion information of a current block; deriving the motion information of the current block based on the received information for deriving the motion information; and performing prediction to generate predicted pixels of the current block based on the motion information of the current block, wherein the motion information of the current block is determined by using motion information of a reference block, wherein the reference block is determined based on a specific disparity vector, wherein the specific disparity vector is determined for an area in a picture to which the current block belongs, wherein the area which the specific disparity vector is determined is split based on a quad tree structure, and wherein the current block is a block of a texture picture and the reference block is a block in a reference view is disclosed.

公开(公告)号：US20160007043A1

公开(公告)日：2016-01-07

申请号：US14441142

申请日：2013-11-07

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/597 ,  H04N19/593 ,  H04N19/52

CPC classification number: H04N19/597 ,  H04N13/00 ,  H04N13/161 ,  H04N19/52 ,  H04N19/593 ,  H04N2213/003

Abstract: The method for processing a multiview video signal according to the present invention acquires motion information generated by predictively coding a picture of a reference point, acquires motion information on a part of a block of the picture from among the motion information generated by predictively coding the picture of a non-reference point, and compresses the motion information acquired for every picture of the reference point and non-reference point and stores the compressed motion information.

Abstract translation: 根据本发明的用于处理多视角视频信号的方法获取通过对参考点的图像进行预测编码而生成的运动信息，从通过对图像进行预测编码而生成的运动信息中获取关于图像块的一部分的运动信息 并且压缩对参考点和非参考点的每个图像获取的运动信息，并存储压缩的运动信息。