公开(公告)号：US10924767B2

公开(公告)日：2021-02-16

申请号：US17023090

申请日：2020-09-16

Applicant: LG Electronics Inc.

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

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

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：US10666983B2

公开(公告)日：2020-05-26

申请号：US16387251

申请日：2019-04-17

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/86 ,  H04N19/159 ,  H04N19/176 ,  H04N19/134 ,  H04N19/14 ,  H04N19/117 ,  H04N19/82 ,  H04N19/136 ,  H04N19/196 ,  H04N19/172 ,  H04N19/60 ,  H04N19/61 ,  G06T5/00

Abstract: The present invention relates to a deblocking filtering method, a method for inducing bs (boundary strength) therefor, and a method and an apparatus for encoding/decoding using the same. The method for inducing the bS of the present invention comprises the steps of: inducing a boundary of a deblocking filtering unit block as a unit block for applying the deblocking filtering; and setting the bS according to each bS setting unit block within the deblocking filtering unit block, wherein the bS setting step can set a bS value for a target boundary corresponding to a boundary of the deblocking filtering unit block as the bs setting unit block.

公开(公告)号：US10666947B2

公开(公告)日：2020-05-26

申请号：US16225858

申请日：2018-12-19

Applicant: LG Electronics Inc.

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

IPC: H04N19/51 ,  H04N19/56 ,  H04N19/61 ,  H04N19/96 ,  H04N19/105 ,  H04N19/139 ,  H04N19/159 ,  H04N19/167 ,  H04N19/513

Abstract: The present invention discloses a method and apparatus for encoding or decoding a video signal. The method for processing a video signal according to the present invention uses a merging mode in which prediction information on a neighbor unit is used instead of transmitting prediction information on the present unit, so as to improve coding efficiency. In this case, the number of available candidate units for merging among the units in a predetermined position is determined, and information for the merging mode is acquired on the basis of the number of the available candidate units for merging. The unit to be merged is determined using the information for the merging mode, and prediction information on the unit to be merged is acquired. The prediction value for the present unit is acquired using the prediction information on the unit to be merged, and the present unit is restored using the acquired prediction value.

公开(公告)号：US10609409B2

公开(公告)日：2020-03-31

申请号：US16513294

申请日：2019-07-16

Applicant: LG ELECTRONICS INC.

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

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

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：US20200014935A1

公开(公告)日：2020-01-09

申请号：US16576631

申请日：2019-09-19

Applicant: LG Electronics Inc.

Inventor： Hendry HENDRY ,  Joonyoung Park ,  Chulkeun Kim ,  Byeongmoon Jeon ,  Jungsun Kim

IPC: H04N19/159 ,  H04N19/30 ,  H04N19/503 ,  H04N19/172 ,  H04N19/176 ,  H04N19/105 ,  H04N19/46 ,  H04N19/463 ,  H04N19/187 ,  H04N19/33 ,  H04N19/573 ,  H04N19/577

Abstract: The present invention relates to a method for coding a scalable video in a multilayer structure, and a method for encoding a video according to the present invention comprises the steps of: decoding and saving a picture of a reference layer; inducing an interlayer reference picture which is referenced for predicting a current block of a current layer; producing a reference picture list including the interlayer reference picture and a reference picture of the current layer; conducting a prediction on the current block of the current layer with the reference picture list to induce a prediction sample with respect to the current block; inducing a recovery sample with respect to the current block based on the prediction sample and the prediction block with respect to the current block; and transmitting reference information for indicating a picture that can be used for interlayer prediction from the pictures of the reference layer.

公开(公告)号：US10531126B2

公开(公告)日：2020-01-07

申请号：US15996877

申请日：2018-06-04

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

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：US10511850B2

公开(公告)日：2019-12-17

申请号：US16222383

申请日：2018-12-17

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry ,  Seungwook Park ,  Byeongmoon Jeon ,  Joonyoung Park ,  Jungsun Kim ,  Sangoh Jeong ,  Chulkeun Kim

IPC: H04N19/44 ,  H04N19/63 ,  H04N19/61 ,  H04N19/593 ,  H04N19/33 ,  H04N19/59 ,  H04N19/70 ,  H04N19/43 ,  H04N19/895 ,  H04N19/68 ,  H04N19/174 ,  H04N19/503

Abstract: The present invention relates to an inter-layer prediction method and to an apparatus implementing the method. The method may comprise the steps of generating a first block constituted by the value obtained by up-sampling the reconstruction value of a reference block of a reference layer corresponding to the current block; generating a second block constituted by a prediction value derived from intra-prediction mode of the current block; and generating a prediction block of the current block by combining sample values of the first block and the second block. Thus, intra-prediction on the current layer can be performed using the intra-prediction mode information of another layer.

公开(公告)号：US10462469B2

公开(公告)日：2019-10-29

申请号：US16137379

申请日：2018-09-20

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry ,  Joonyoung Park ,  Chulkeun Kim ,  Byeongmoon Jeon ,  Jungsun Kim

IPC: H04N19/159 ,  H04N19/30 ,  H04N19/503 ,  H04N19/172 ,  H04N19/176 ,  H04N19/105 ,  H04N19/46 ,  H04N19/463 ,  H04N19/187 ,  H04N19/33 ,  H04N19/573 ,  H04N19/577

Abstract: The present invention relates to a method for coding a scalable video in a multilayer structure, and a method for encoding a video according to the present invention comprises the steps of: decoding and saving a picture of a reference layer; inducing an interlayer reference picture which is referenced for predicting a current block of a current layer; producing a reference picture list including the interlayer reference picture and a reference picture of the current layer; conducting a prediction on the current block of the current layer with the reference picture list to induce a prediction sample with respect to the current block; inducing a recovery sample with respect to the current block based on the prediction sample and the prediction block with respect to the current block; and transmitting reference information for indicating a picture that can be used for interlayer prediction from the pictures of the reference layer.

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.