公开(公告)号：US10743021B2

公开(公告)日：2020-08-11

申请号：US16513198

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: H04N19/55 ,  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：US10448046B2

公开(公告)日：2019-10-15

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 ,  H04N19/577 ,  H04N19/513 ,  H04N19/50 ,  H04N19/176 ,  H04N19/51 ,  H04N19/109 ,  H04N19/463 ,  H04N19/426 ,  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：US10397580B2

公开(公告)日：2019-08-27

申请号：US15942897

申请日：2018-04-02

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：US09936202B2

公开(公告)日：2018-04-03

申请号：US15143719

申请日：2016-05-02

Applicant: LG ELECTRONICS INC.

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

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

CPC classification number: H04N19/139 ,  H04N19/105 ,  H04N19/159 ,  H04N19/167 ,  H04N19/51 ,  H04N19/521 ,  H04N19/56 ,  H04N19/61 ,  H04N19/96

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：US20150229965A1

公开(公告)日：2015-08-13

申请号：US14692134

申请日：2015-04-21

Applicant: LG Electronics Inc.

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

IPC: H04N19/593 ,  H04N19/176 ,  H04N19/117

Abstract: The present invention relates to an intra-prediction method and to an encoder and decoder using same. The intra-prediction method according to one embodiment of the present invention comprises the steps of: deriving a prediction mode of a current block; and generating a prediction block with respect to the current block on the basis of the prediction mode of the current block. When the prediction mode of the current block is an intra-angular prediction mode, values of boundary samples from among left boundary samples and upper boundary samples of the prediction block, which are not positioned in a prediction direction of the intra-angular prediction mode, are derived on the basis of reference samples positioned in the prediction direction of the intra-angular prediction mode, and on the basis of adjacent reference samples.

Abstract translation: 本发明涉及帧内预测方法和涉及使用其的编码器和解码器。 根据本发明的一个实施例的帧内预测方法包括以下步骤：导出当前块的预测模式; 并根据当前块的预测模式生成关于当前块的预测块。 当当前块的预测模式是角内预测模式时，未位于角内预测模式的预测方向的左边界样本和预测块的上边界样本之间的边界样本的值， 是基于位于角内预测模式的预测方向上的参考样本，并且基于相邻参考样本导出的。

公开(公告)号：US12041269B2

公开(公告)日：2024-07-16

申请号：US18223817

申请日：2023-07-19

Applicant: LG Electronics Inc.

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

IPC: H04N19/593 ,  G06V10/20 ,  H04N19/11 ,  H04N19/14 ,  H04N19/157 ,  H04N19/182 ,  H04N19/44 ,  H04N19/50 ,  H04N19/80 ,  H04N19/82

CPC classification number: H04N19/593 ,  G06V10/20 ,  H04N19/11 ,  H04N19/14 ,  H04N19/157 ,  H04N19/182 ,  H04N19/44 ,  H04N19/50 ,  H04N19/80 ,  H04N19/82

Abstract: New intra planar modes are introduced for predicting digital video data. As part of the new intra planar modes, various methods are offered for predicting a first sample within a prediction unit, where the first sample is needed for referencing to when processing the new intra planar modes. And once the first sample is successfully predicted, the new intra planar modes are able to predict a sample of video data within the prediction unit by processing a bi-linear interpolation of four previously reconstructed reference samples.

公开(公告)号：US11895333B2

公开(公告)日：2024-02-06

申请号：US17827093

申请日：2022-05-27

Applicant: LG Electronics Inc.

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

IPC: H04N19/593 ,  H04N19/96 ,  H04N19/70

CPC classification number: H04N19/593 ,  H04N19/96 ,  H04N19/70

Abstract: Disclosed are a method for partitioning a block and a decoding device. A method for decoding an image comprises the steps of: partitioning one prediction unit, in which an intra prediction is performed in a predetermined intra prediction mode, into a plurality of transform units; and performing the intra prediction for each of the plurality of the transform units on the basis of the predetermined intra prediction mode. Thus, the invention increases the image encoding efficiency.

公开(公告)号：US11871027B2

公开(公告)日：2024-01-09

申请号：US17895845

申请日：2022-08-25

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/513 ,  H04N19/51 ,  H04N19/105 ,  H04N19/167 ,  H04N19/176 ,  H04N19/583

CPC classification number: H04N19/513 ,  H04N19/105 ,  H04N19/167 ,  H04N19/176 ,  H04N19/51 ,  H04N19/583

Abstract: The method for deriving a temporal motion vector predictor according to the present invention comprises the steps of: selecting a reference picture for a current block; deciding a predictor block corresponding to a predetermined storage unit block, as a reference prediction unit for the current block, in the reference picture; and deriving the temporal motion vector predictor from motion information of the decided reference prediction unit. The present invention enhances image compression efficiency.

公开(公告)号：US11825110B2

公开(公告)日：2023-11-21

申请号：US17377203

申请日：2021-07-15

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 ,  H04N19/593 ,  H04N19/11 ,  H04N19/573 ,  H04N19/58 ,  H04N19/56 ,  H04N19/105 ,  H04N19/503 ,  H04N19/139 ,  H04N19/176 ,  H04N19/517

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: The present invention relates to the encoding and decoding of image information. According to the present invention, the decoding method comprises the steps of: 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.

公开(公告)号：US11197026B2

公开(公告)日：2021-12-07

申请号：US17028433

申请日：2020-09-22

Applicant: LG Electronics Inc.

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

IPC: H04N19/593 ,  H04N19/196 ,  H04N19/176 ,  H04N19/70 ,  H04N19/122 ,  H04N19/61 ,  H04N19/11 ,  H04N19/186 ,  H04N19/157 ,  H04N19/80 ,  H04N19/107 ,  H04N19/172 ,  H04N19/174 ,  H04N19/59 ,  H04N19/96

Abstract: A method for signalling an intra chroma prediction mode and a method for implementing the signalled intra chroma prediction mode, the intra chroma prediction mode taking an intropolation of previously predicted luma samples from neighboring blocks of video data to attain an intra chroma prediction of a current chroma prediction unit.