公开(公告)号：US20230232018A1

公开(公告)日：2023-07-20

申请号：US18089429

申请日：2022-12-27

Applicant: LG ELECTRONICS INC.

Inventor： Jin Heo ,  Yongjoon Jeon ,  Sunmi Yoo ,  Eunyong Son ,  Junghak Nam

IPC: H04N19/159 ,  H04N19/176 ,  H04N19/107 ,  H04N19/119 ,  H04N19/593

CPC classification number: H04N19/159 ,  H04N19/176 ,  H04N19/107 ,  H04N19/119 ,  H04N19/593

Abstract: In the present invention, a method for processing an image on the basis of an intra prediction mode and an apparatus therefor are disclosed. Particularly, the method for processing an image on the basis of an intra prediction mode may comprise the steps of: partitioning a block to be processed, on the basis of an intra prediction mode of the block to be processed; and performing intra prediction for the split block to be processed, wherein the direction in which the block to be processed is split is perpendicular to the prediction direction of the intra prediction mode of the block to be processed.

公开(公告)号：US10728571B2

公开(公告)日：2020-07-28

申请号：US15750093

申请日：2016-07-15

Applicant: LG Electronics Inc.

Inventor： Eunyong Son ,  Moonmo Koo ,  Hyeongmoon Jang ,  Seungwook Park ,  Yongjoon Jeon

IPC: H04N19/513 ,  H04N19/176 ,  H04N19/105 ,  H04N19/517 ,  H04N19/503 ,  H04N19/182 ,  H04N19/159 ,  H04N19/44

Abstract: A video decoding method performed by a decoding device includes: deriving control points (CPs) for a current block; acquiring motion vectors for the CPs; deriving a sample-unit motion vector in the current block based on the acquired motion vectors; deriving a prediction sample for the current block based on the sample-unit motion vector; and generating a restoration sample based on the prediction sample, wherein coordinates of a bottom-right sample position of the current block are (0, 0), and coordinates of CPO among the CPs are (0, 0). Inter prediction is effectively performed through sample-unit motion vectors even when an image in a current block is planarly moved and variously changed, and since motion vectors for CPs are derived based on already-decoded neighboring blocks, an amount of information for the motion vectors for the CPs and for a residual signal for the current block is reduced, improving overall coding efficiency.

公开(公告)号：US10721492B2

公开(公告)日：2020-07-21

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 ,  H04N19/176 ,  H04N19/11 ,  H04N19/44 ,  H04N19/96 ,  H04N19/196 ,  H04N19/182

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：US10602138B2

公开(公告)日：2020-03-24

申请号：US15755037

申请日：2016-08-25

Applicant: LG ELECTRONICS INC.

Inventor： Eunyong Son ,  Jin Heo ,  Seungwook Park ,  Yongjoon Jeon ,  Moonmo Koo

IPC: H04N19/11 ,  H04N19/186 ,  H04N19/159 ,  H04N19/176 ,  H04N19/593

Abstract: An intra prediction method according to the present invention comprises the steps of: acquiring information on a luma prediction mode of a current block and information on a chroma prediction mode of the current block from a bit stream; deriving a luma intra prediction mode of the current block on the basis of the information on the luma prediction mode; determining a chroma intra prediction mode of the current block on the basis of information on the luma intra prediction mode and the information on the chroma prediction mode; and generating a chroma prediction sample of the current block on the basis of the chroma intra prediction mode. According to the present invention, it is possible to reflect the difference between the ratio of the width to the height of a luma component and the ratio of the width to the height of a chroma component, and thus to more accurately perform intra prediction in units of samples and improve intra prediction performance.

公开(公告)号：US10123007B2

公开(公告)日：2018-11-06

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 ,  H04N19/52 ,  H04N19/176

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.

公开(公告)号：US09894384B2

公开(公告)日：2018-02-13

申请号：US14434282

申请日：2013-10-08

Applicant: LG ELECTRONICS INC.

Inventor： Jaewon Sung ,  Sehoon Yea ,  Moonmo Koo ,  Jin Heo ,  Taesup Kim ,  Jiwook Jung ,  Eunyong Son

IPC: H04N19/597 ,  H04N19/52 ,  H04N19/513 ,  H04N19/196 ,  H04N19/463 ,  H04N13/00 ,  H04N19/82

CPC classification number: H04N19/597 ,  H04N19/196 ,  H04N19/463 ,  H04N19/513 ,  H04N19/52 ,  H04N19/521 ,  H04N19/82

Abstract: The video signal decoding method according to the present invention involves acquiring weighting-value predicting data of a neighboring view texture block corresponding to the current view texture block, deriving weighting-value predicting data of the current view texture block by using the weighting-value predicting data of the neighboring view texture block, and subjecting the current view texture block to weighting-value compensation by using the derived weighting-value predicting data.

公开(公告)号：US09602831B2

公开(公告)日：2017-03-21

申请号：US14383491

申请日：2013-03-05

Applicant: LG ELECTRONICS INC.

Inventor： Jaewon Sung ,  Sehoon Yea ,  Moonmo Koo ,  Jin Heo ,  Taesup Kim ,  Jiwook Jung ,  Eunyong Son

IPC: H04N11/02 ,  H04N19/513 ,  H04N19/597 ,  H04N19/52 ,  H04N19/176 ,  H04N13/00

CPC classification number: H04N19/513 ,  H04N13/161 ,  H04N19/176 ,  H04N19/52 ,  H04N19/597

Abstract: The method for processing video signals according to the present invention determines a motion vector list including at least one of spatial motion vectors, temporal motion vectors, and variation vectors as motion vector candidates of a target block, extracts motion vector identifying information which specifies the motion vector candidates used as the predicted motion vectors of the target block, determines the motion vector candidates corresponding to the motion vector identifying information as the predicted motion vectors of the target block, and performs motion compensation on the basis of the predicted motion vectors. The present invention enables accurate motion vector prediction by forming motion vector candidates and induces motion vectors of a target block therefrom, and can enhance coding efficiency by reducing the amount of transmitted residual data.

公开(公告)号：US20140294088A1

公开(公告)日：2014-10-02

申请号：US14351307

申请日：2012-10-12

Applicant: LG Electronics Inc.

Inventor： Jaewon Sung ,  Sehoon Yea ,  Eunyong Son ,  Jiwook Jung

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

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

Abstract: The present invention relates to an image encoding method and an image decoding method. An image encoding method according to the present invention comprises: a step of determining motion information of a current block; and a step of transmitting information for inducing the motion information, wherein the step of determining motion information of the current block determines the motion information of the current block by reusing motion information of a reference block.

Abstract translation: 本发明涉及图像编码方法和图像解码方法。 根据本发明的图像编码方法包括：确定当前块的运动信息的步骤; 以及发送用于诱导运动信息的信息的步骤，其中，确定当前块的运动信息的步骤通过重新使用参考块的运动信息来确定当前块的运动信息。

公开(公告)号：US20240406411A1

公开(公告)日：2024-12-05

申请号：US18670978

申请日：2024-05-22

Applicant: LG ELECTRONICS INC.

Inventor： Jin Heo ,  Yongjoon Jeon ,  Sunmi Yoo ,  Eunyong Son ,  Junghak Nam

IPC: H04N19/159 ,  H04N19/107 ,  H04N19/119 ,  H04N19/176 ,  H04N19/593

Abstract: In the present invention, a method for processing an image on the basis of an intra prediction mode and an apparatus therefor are disclosed. Particularly, the method for processing an image on the basis of an intra prediction mode may comprise the steps of: partitioning a block to be processed, on the basis of an intra prediction mode of the block to be processed; and performing intra prediction for the split block to be processed, wherein the direction in which the block to be processed is split is perpendicular to the prediction direction of the intra prediction mode of the block to be processed.

公开(公告)号：US12028531B2

公开(公告)日：2024-07-02

申请号：US18089429

申请日：2022-12-27

Applicant: LG ELECTRONICS INC.

Inventor： Jin Heo ,  Yongjoon Jeon ,  Sunmi Yoo ,  Eunyong Son ,  Junghak Nam

IPC: H04N19/159 ,  H04N19/107 ,  H04N19/119 ,  H04N19/176 ,  H04N19/593

CPC classification number: H04N19/159 ,  H04N19/107 ,  H04N19/119 ,  H04N19/176 ,  H04N19/593

Abstract: In the present invention, a method for processing an image on the basis of an intra prediction mode and an apparatus therefor are disclosed. Particularly, the method for processing an image on the basis of an intra prediction mode may comprise the steps of: partitioning a block to be processed, on the basis of an intra prediction mode of the block to be processed; and performing intra prediction for the split block to be processed, wherein the direction in which the block to be processed is split is perpendicular to the prediction direction of the intra prediction mode of the block to be processed.