公开(公告)号：US10785499B2

公开(公告)日：2020-09-22

申请号：US16074710

申请日：2017-02-02

Applicant: LG ELECTRONICS INC.

Inventor： Jana Ehmann ,  Onur G. Guleryuz ,  Sehoon Yea

IPC: H04N19/52 ,  H04N19/176 ,  H04N19/13 ,  H04N19/124 ,  H04N19/567 ,  H04N19/105 ,  H04N19/46 ,  H04N19/51 ,  H04N19/182 ,  H04N19/117 ,  H04N19/126 ,  H04N19/147 ,  H04N19/192

Abstract: The present invention provides a method for encoding a video signal by using an enhanced prediction signal, the method comprising the steps of: generating a prediction signal for a current block, wherein the prediction signal is generated by applying a prediction weight to a reconstructed pixel of the current block and a pixel of a motion-compensated previously decoded block; obtaining an optimal quantized transform coefficient for the current block through rate-distortion optimization, on the basis of the prediction signal; and performing entropy encoding of the optimal quantized transform coefficient.

公开(公告)号：US10771815B2

公开(公告)日：2020-09-08

申请号：US15764599

申请日：2016-09-29

Applicant: LG Electronics Inc. ,  University of Southern California

Inventor： Yung-Hsuan Chao ,  Sehoon Yea ,  Antonio Ortega

IPC: H04N19/61 ,  H04N19/117 ,  H04N19/96 ,  H04N19/147 ,  H04N19/12 ,  H04N19/90 ,  H04N19/176 ,  H04N19/14 ,  H04N19/625 ,  H04N19/124 ,  H04N19/91 ,  H04N19/11 ,  H04N19/13 ,  H04N19/196 ,  H04N19/107 ,  H04N19/50

Abstract: The present invention provides a method for encoding a video signal on the basis of a graph-based lifting transform (GBLT), comprising the steps of: detecting an edge from an intra residual signal; generating a graph on the basis of the detected edge, wherein the graph includes a node and a weight link; acquiring a GBLT coefficient by performing the GBLT for the graph; quantizing the GBLT coefficient; and entropy-encoding the quantized GBLT coefficient, wherein the GBLT includes a partitioning step, a prediction step, and an update step.

公开(公告)号：US10547847B2

公开(公告)日：2020-01-28

申请号：US15761356

申请日：2016-03-03

Applicant: LG ELECTRONICS INC.

Inventor： Hyeongmoon Jang ,  Jaehyun Lim ,  Seungwook Park ,  Sehoon Yea

IPC: H04N19/139 ,  H04N19/176 ,  H04N19/51 ,  H04N19/517 ,  H04N19/52

Abstract: An image encoding method according to the present invention, which is performed by an encoding apparatus, comprises the steps of: generating an adaptive motion vector range (AMVR) enable flag; deriving a motion vector difference (MVD) with respect to a current block; deriving a representative MVD value of an MVD range including a value of the MVD from among a plurality of MVD ranges; generating a coded MVD corresponding to the representative MVD value; and outputting the AMVR enable flag and the coded MVD through a bit stream. According to the present invention, the amount of bits allocated to an MVD can be reduced and the overall coding efficiency can thus be increased.

公开(公告)号：US10469874B2

公开(公告)日：2019-11-05

申请号：US15027674

申请日：2014-10-07

Applicant: LG ELECTRONICS INC.

Inventor： Onur Gonen Guleryuz ,  Amir Said ,  Sehoon Yea

IPC: H04N19/61 ,  H04N19/132 ,  H04N19/177 ,  H04N19/147 ,  H04N19/103 ,  H04N19/18 ,  H04N19/19 ,  H04N19/62 ,  H04N19/94

Abstract: Disclosed herein is a method of encoding a video signal, comprising receiving an original video signal; comparing the original video signal with available reconstructed signals; determining a correction signal based on a result of the comparison; and generating a transform-coded correction signal to be transmitted for a signal reconstruction.

公开(公告)号：US10171836B2

公开(公告)日：2019-01-01

申请号：US14433773

申请日：2013-10-04

Applicant: LG Electronics Inc.

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

IPC: H04N19/597 ,  H04N13/00 ,  H04N19/52 ,  H04N13/161 ,  H04N19/43 ,  H04N19/436

Abstract: According to the present invention, an inter-view motion vector of a current coding unit is acquired using parallel processing information, and a motion vector of a current prediction unit in the current coding unit is acquired in parallel using the inter-view motion vector of the current coding unit. The present invention relates to a method and device for processing a video signal, wherein a motion vector prediction value of the current prediction unit is acquired by comparing output order information of a reference picture corresponding to the current prediction unit and output order information of a reference picture corresponding to a corresponding block. According to the present invention, through a parallel processing step, a multi-view point video image can be quickly restored, and the accuracy of the motion vector prediction value can be increased using motion information corresponding to the reference picture of the corresponding block of a different view point from the current prediction unit.

公开(公告)号：US10051268B2

公开(公告)日：2018-08-14

申请号：US15523424

申请日：2015-10-29

Applicant: LG ELECTRONICS INC.

Inventor： Sehoon Yea

IPC: H04N19/105 ,  H04N19/107 ,  H04N19/103 ,  H04N19/44 ,  H04N19/139 ,  H04N19/70 ,  H04N19/176 ,  H04N19/51 ,  H04N19/61

Abstract: There is provided a method for encoding a video signal based on pixel-correlations on a transform domain, the method comprising: obtaining a first transform coefficient by transforming a pixel value of a target block in a current frame; reconstructing a second transform coefficient for a corresponding block in a previous frame; and obtaining a prediction value of the first transform coefficient based on the reconstructed second transform coefficient and a correlation coefficient.

公开(公告)号：US10021417B2

公开(公告)日：2018-07-10

申请号：US14406604

申请日：2013-06-18

Applicant: LG Electronics Inc.

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

IPC: H04N19/597 ,  H04N19/513 ,  H04N19/577 ,  H04N19/573

CPC classification number: H04N19/597 ,  H04N19/513 ,  H04N19/521 ,  H04N19/573 ,  H04N19/577

Abstract: The present invention relates to inter-view residual prediction and is characterized by obtaining residual data of a first reference block by using a motion vector of a neighboring block, obtaining residual data of a second reference block by using a reference view motion vector or a disparity vector, obtaining a residual data prediction value by using the residual data of the first reference block and the residual data of the second reference block, and coding a current texture block by using the residual data prediction value. The present invention can perform inter-view residual prediction by using a prediction value obtained using coded data of another view point belonging to the same time band to increase the accuracy of video data prediction by using a correlation between view points and reduce the amount of residual data to be transmitted, thereby improving the coding efficiency. In addition, the complexity in coding process may be reduced by adding a condition for applying the inter-view residual prediction.

公开(公告)号：US09998762B2

公开(公告)日：2018-06-12

申请号：US14759611

申请日：2014-01-09

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/597 ,  H04N13/00 ,  H04N19/70 ,  H04N19/463 ,  H04N19/59 ,  H04N19/61

CPC classification number: H04N19/597 ,  H04N13/10 ,  H04N19/463 ,  H04N19/59 ,  H04N19/61 ,  H04N19/70

Abstract: The present invention relates to a method and an apparatus for processing video signals, and more specifically, to a method and an apparatus for processing video signals which applies deformation compensation to decode a current texture block. The present invention can increase the accuracy of an inter-prediction by obtaining the position of a block within a reference picture referenced by the current texture block, by means of using deformation compensation parameter information, and obtaining a pixel value of the block within the reference picture that is obtained from a prediction value of the current texture block.

公开(公告)号：US09826239B2

公开(公告)日：2017-11-21

申请号：US14759580

申请日：2014-01-07

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/159 ,  H04N19/176 ,  H04N19/196 ,  H04N19/61 ,  H04N19/593 ,  H04N19/11 ,  H04N19/463 ,  H04N19/157

CPC classification number: H04N19/159 ,  H04N19/11 ,  H04N19/157 ,  H04N19/176 ,  H04N19/197 ,  H04N19/463 ,  H04N19/593 ,  H04N19/61

Abstract: The video signal processing method according to the present invention comprises: generating a candidate mode list of a current block on the basis of an intra-prediction mode from the spatial neighboring block of the current block; modifying the candidate mode list on the basis of an intra-prediction mode from the neighboring view of the current block; inducing the intra-prediction mode of the current block on the basis of the modified candidate mode list; and predicting the current block by using the induced intra-prediction mode.

公开(公告)号：US10778985B2

公开(公告)日：2020-09-15

申请号：US15762958

申请日：2016-09-23

Applicant: LG Electronics Inc.

Inventor： Jin Heo ,  Eunyong Son ,  Junghak Nam ,  Seungwook Park ,  Sehoon Yea

IPC: G06K9/36 ,  G06K9/46 ,  H04N19/159 ,  H04N19/176 ,  H04N19/11 ,  H04N19/46 ,  H04N19/61 ,  H04N19/593 ,  H04N19/146

Abstract: An image decoding method, which is performed by a decoding apparatus, includes the steps of: deriving a frequency domain-neighboring block for a neighboring block of a current block in a spatial domain; deriving a frequency domain-prediction block for the current block by applying a prediction pattern to the frequency domain-neighboring block; generating a frequency domain-reconstructed block for the current block on the basis of the frequency domain-prediction block; and generating a reconstructed block for the current block in the spatial domain on the basis of the frequency inverse transform of the frequency domain-reconstructed block. The present invention can generate a prediction block for a current block in a frequency domain, and accordingly can more efficiently reconstruct a complex image.