公开(公告)号：US10477231B2

公开(公告)日：2019-11-12

申请号：US15737037

申请日：2015-12-09

Applicant: LG Electronics Inc.

Inventor： Jaehyun Lim ,  Seungwook Park ,  Junghak Nam

IPC: H04N19/46 ,  H04N19/513 ,  H04N19/176 ,  H04N19/117 ,  H04N19/136 ,  H04N19/186 ,  H04N19/82 ,  H04N19/105

Abstract: A block prediction method for decoding a picture, according to the present invention, comprises the steps of: deriving a reference block from a reference picture to predict a current block in a current picture; determining a reference illumination compensation (IC) parameter; generating an illumination-compensated reference block by applying reference IC to the reference block on the basis of the reference IC parameter; and generating a predicted sample of the current block on the basis of the illumination-compensated reference block. According to the present invention, an illumination difference between the current block of the current picture and the reference block of the reference picture can be compensated for, block prediction efficiency can be increased, and a data amount of a residual signal to be transmitted from an encoder to a decoder is reduced. Therefore, compression and coding efficiency can be increased.

公开(公告)号：US10425660B2

公开(公告)日：2019-09-24

申请号：US15923740

申请日：2018-03-16

Applicant: LG Electronics Inc.

Inventor： Jaehyun Lim ,  Seungwook Park ,  Yongjoon Jeon ,  Chulkeun Kim ,  Jungsun Kim ,  Naeri Park ,  Hendry Hendry ,  Byeongmoon Jeon ,  Joonyoung Park

IPC: H04N19/61 ,  H04N19/82 ,  H04N19/86 ,  H04N19/124 ,  H04N19/13 ,  H04N19/176 ,  H04N19/182

Abstract: A method for image decoding, according to the present invention, includes the following steps: receiving image information including a plurality of filter coefficients; generating a restored block for a current block on the basis of the image information; and applying an adaptive loop filter to the restored block on the basis of the plurality of filter coefficients. According to the present invention, image encoding efficiency may be improved, and complexity may be reduced.

公开(公告)号：US10404997B2

公开(公告)日：2019-09-03

申请号：US15988512

申请日：2018-05-24

Applicant: LG ELECTRONICS INC.

Inventor： Joonyoung Park ,  Seungwook Park ,  Jaehyun Lim ,  Jungsun Kim ,  Younghee Choi ,  Jaewon Sung ,  Byeongmoon Jeon ,  Yongjoon Jeon

IPC: H04N19/55 ,  H04N19/52 ,  H04N19/61 ,  H04N19/176 ,  H04N19/593 ,  H04N19/625 ,  H04N19/172 ,  H04N19/184 ,  H04N19/513

Abstract: The present invention relates to a method and apparatus for processing a video signal, which can increase the accuracy of the motion vector prediction through motion vector scaling which takes a difference in the temporal distance between reference pictures into consideration. To this end, the present invention provides a video signal processing method and a video signal processing apparatus using the same, and the method comprises the steps of: scaling at least one neighboring partition motion vector for a motion vector prediction of the current partition; scaling the neighboring partition motion vector, which has been selected, when the reference picture of the neighboring partition motion vector is different from the reference picture of the current partition; acquiring a motion vector prediction value of the current partition using the scaled motion vector; and acquiring a motion vector of the current partition using the motion vector prediction value.

公开(公告)号：US10390023B2

公开(公告)日：2019-08-20

申请号：US16042696

申请日：2018-07-23

Applicant: LG ELECTRONICS INC.

Inventor： Jaehyun Lim ,  Jungsun Kim ,  Seungwook Park ,  Jaewon Sung ,  Byeongmoon Jeon ,  Joonyoung Park ,  Yongjoon Jeon ,  Younghee Choi

IPC: H04N7/12 ,  H04N19/159 ,  H04N19/105 ,  H04N19/176 ,  H04N19/46 ,  H04N19/196 ,  H04N19/61 ,  H04N19/593 ,  H04N19/11 ,  H04N19/463 ,  H04N19/14 ,  H04N19/154 ,  H04N19/182 ,  H04N19/50 ,  H04N19/513 ,  H04N19/59 ,  H04N19/18

Abstract: A method and apparatus for signaling and receiving a video signal for processing is disclosed. Methods for determining a most probable mode for predicting a current prediction block are provided as well as new methods for grouping intra prediction modes into prediction groups. Methods for predicting a prediction block of video data as well as signaling intra prediction modes are also provided.

公开(公告)号：US10390022B2

公开(公告)日：2019-08-20

申请号：US15552366

申请日：2016-03-16

Applicant: LG Electronics Inc.

Inventor： Yongjoon Jeon ,  Seungwook Park ,  Eunyong Son

IPC: H04N19/159 ,  H04N19/105 ,  H04N19/139 ,  H04N19/167 ,  H04N19/176 ,  H04N19/196 ,  H04N19/70 ,  H04N19/119 ,  H04N19/96 ,  H04N19/463

Abstract: The present invention relates to a method and a device for decoding a bitstream for a video signal, the method comprising the steps of: determining whether at least one neighboring block adjacent to a current block is divided into a plurality of coding blocks within a picture including the current block; if the at least one neighboring block is not divided, obtaining, from the bitstream, flag information indicating whether parameter information for the current block is induced from one of the at least one neighboring block, and inducing the parameter information for the current block from a specific neighboring block among the at least one neighboring block, on the basis of the flag information; obtaining the parameter information for the current block from the bitstream if all of the at least one neighboring block is divided; and decoding the current block on the basis of the parameter information for the current block.

公开(公告)号：US10368077B2

公开(公告)日：2019-07-30

申请号：US15864475

申请日：2018-01-08

Applicant: LG ELECTRONICS INC.

Inventor： Joonyoung Park ,  Byeongmoon Jeon ,  Yongjoon Jeon ,  Seungwook Park ,  Jungsun Kim ,  Jaehyun Lim ,  Hendry Hendry ,  Naeri Park ,  Chulkeun Kim

IPC: H04N19/11 ,  H04N19/44 ,  H04N19/96 ,  H04N19/159 ,  H04N19/176 ,  H04N19/593

Abstract: A method for decoding an image according to the present invention comprises the steps of: receiving and decoding MPM index information for indicating an MPM candidate which is to be used as an intra prediction mode of a current block; generating an MPM candidate list containing a plurality of MPM candidates for the current block; determining the MPM candidate indicated by the decoded MPM index information as the intra prediction mode of the current block, among the plurality of the MPM candidates which constitute the MPM candidate list; and generating a prediction block corresponding to the current block by performing intra prediction for the current block based on the determined intra prediction mode.

公开(公告)号：US20190089977A1

公开(公告)日：2019-03-21

申请号：US16163431

申请日：2018-10-17

Applicant: LG ELECTRONICS INC.

Inventor： Joonyoung Park ,  Seungwook Park ,  Jaehyun Lim ,  Jungsun Kim ,  Younghee Choi ,  Jaewon Sung ,  Byeongmoon Jeon ,  Yongjoon Jeon

IPC: H04N19/52 ,  H04N19/11 ,  H04N19/426 ,  H04N19/463 ,  H04N19/109 ,  H04N19/577 ,  H04N19/176 ,  H04N19/50 ,  H04N19/513 ,  H04N19/51

CPC classification number: H04N19/52 ,  H04N19/109 ,  H04N19/11 ,  H04N19/176 ,  H04N19/426 ,  H04N19/463 ,  H04N19/50 ,  H04N19/51 ,  H04N19/521 ,  H04N19/577

Abstract: A motion information storing method and a TMVP deriving method using the motion information storing method are provided. The motion information storing method includes a step of determining a representative block out of blocks of a motion data storage unit in a co-located picture with a current picture and a step of storing motion information of the representative block as motion information of the motion data storage unit, wherein the motion information of the representative block is used as motion information of the blocks included in the motion data storage unit.

公开(公告)号：US09992515B2

公开(公告)日：2018-06-05

申请号：US15217765

申请日：2016-07-22

Applicant: LG ELECTRONICS INC.

Inventor： Seungwook Park ,  Jungsun Kim ,  Yongjoon Jeon ,  Joonyoung Park ,  Byeongmoon Jeon ,  Jaehyun Lim

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/80 ,  H04N19/70 ,  H04N19/61 ,  H04N19/117 ,  H04N19/186 ,  H04N19/82 ,  H04N19/44 ,  H04N19/50 ,  H04N19/132 ,  H04N19/13 ,  H04N19/126 ,  H04N19/98

CPC classification number: H04N19/80 ,  H04N19/117 ,  H04N19/126 ,  H04N19/13 ,  H04N19/132 ,  H04N19/186 ,  H04N19/44 ,  H04N19/50 ,  H04N19/61 ,  H04N19/70 ,  H04N19/82 ,  H04N19/98

Abstract: The present invention relates to a method for encoding and decoding image information and to an apparatus using same, and the method for encoding the image information, according to the present invention, comprises the steps of: generating a recovery block; applying a deblocking filter to the recovery block; applying a sample adaptive offset (SAO) to the recovery block to which the deblocking filter is applied; and transmitting the image information including information on the SAO which is applied, wherein in the step of transmitting, information for specifying bands that cover a scope of a pixel value, to which a band off set is applied, is transmitted when the band offset is applied during the step of applying the SAO.

公开(公告)号：US09948954B2

公开(公告)日：2018-04-17

申请号：US15263717

申请日：2016-09-13

Applicant: LG Electronics Inc.

Inventor： Jaehyun Lim ,  Seungwook Park ,  Yongjoon Jeon ,  Chulkeun Kim ,  Jungsun Kim ,  Naeri Park ,  Hendry Hendry ,  Byeongmoon Jeon ,  Joonyoung Park

IPC: H04N19/61 ,  H04N19/82 ,  H04N19/86 ,  H04N19/124 ,  H04N19/13 ,  H04N19/176 ,  H04N19/182

CPC classification number: H04N19/61 ,  H04N19/124 ,  H04N19/13 ,  H04N19/176 ,  H04N19/182 ,  H04N19/82 ,  H04N19/86

Abstract: A method for image decoding includes the following steps: receiving image information including a plurality of filter coefficients; generating a restored block for a current block on the basis of the image information; and applying an adaptive loop filter to the restored block on the basis of the plurality of filter coefficients.

公开(公告)号：US09918101B2

公开(公告)日：2018-03-13

申请号：US14692147

申请日：2015-04-21

Applicant: LG ELECTRONICS INC.

Inventor： Seungwook Park ,  Jaehyun Lim ,  Yongjoon Jeon ,  Hendry Hendry ,  Younghee Choi ,  Jaewon Sung ,  Jungsun Kim ,  Byeongmoon Jeon ,  Joonyoung Park

IPC: H04N19/513 ,  H04N19/176 ,  H04N19/56 ,  H04N7/12 ,  H04N19/105 ,  H04N19/503 ,  H04N19/139 ,  H04N19/517 ,  H04N19/593 ,  H04N19/11 ,  H04N19/573 ,  H04N19/58

CPC classification number: H04N19/513 ,  H04N19/105 ,  H04N19/11 ,  H04N19/139 ,  H04N19/176 ,  H04N19/503 ,  H04N19/517 ,  H04N19/56 ,  H04N19/573 ,  H04N19/58 ,  H04N19/593

Abstract: A decoding method includes: entropy-decoding received information; performing inter prediction on a current block based on the entropy-decoded information; and restoring images by using the prediction results, wherein, in the inter prediction step, a skip mode or merge mode is applied to the current block and movement information of the current block may be determined based on the movement information of a neighboring block of the current block.