公开(公告)号：US11082704B2

公开(公告)日：2021-08-03

申请号：US16814808

申请日：2020-03-10

Applicant: LG Electronics Inc.

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

IPC: H04N19/159 ,  H04N19/52 ,  H04N19/43 ,  H04N19/436 ,  H04N19/57 ,  H04N19/105 ,  H04N19/176

Abstract: According to the present invention, an inter prediction method comprises the steps of: generating a merge candidate list for a block to be predicted, wherein the block is to correspond to a current prediction unit; deriving, on the basis of one of a plurality of merge candidates constituting the merge candidate list, motion information on the block to be predicted; and performing, on the basis of the derived motion information, a prediction on the block to be predicted so as to generate a prediction block corresponding to the current prediction unit.

公开(公告)号：US20210227224A1

公开(公告)日：2021-07-22

申请号：US17214289

申请日：2021-03-26

Applicant: LG Electronics Inc.

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

IPC: H04N19/136 ,  H04N19/50 ,  H04N19/96 ,  H04N19/91 ,  H04N19/44 ,  H04N19/174

Abstract: The present invention relates to an entropy decoding method which includes: generating context related to a bin that forms a codeword of a syntax element; and performing arithmetic decoding of the bin based on the context.

公开(公告)号：US11010628B2

公开(公告)日：2021-05-18

申请号：US16558020

申请日：2019-08-30

Applicant: LG ELECTRONICS INC.

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

IPC: G06K9/36 ,  H04N19/50 ,  H04N19/593 ,  H04N19/11 ,  H04N19/14 ,  H04N19/157 ,  H04N19/182 ,  H04N19/44 ,  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：US11006146B2

公开(公告)日：2021-05-11

申请号：US16835894

申请日：2020-03-31

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/593 ,  H04N19/105 ,  H04N19/176 ,  H04N19/11 ,  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.

公开(公告)号：US10798421B2

公开(公告)日：2020-10-06

申请号：US16715895

申请日：2019-12-16

Applicant: LG Electronics Inc.

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

IPC: H04N19/80 ,  H04N19/13 ,  H04N19/132 ,  H04N19/70 ,  H04N19/61 ,  H04N19/186 ,  H04N19/82 ,  H04N19/117 ,  H04N19/44 ,  H04N19/50 ,  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：US10791329B2

公开(公告)日：2020-09-29

申请号：US16694279

申请日：2019-11-25

Applicant: LG Electronics Inc.

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

IPC: H04N19/122 ,  H04N19/136 ,  H04N19/50 ,  H04N19/96 ,  H04N19/91 ,  H04N19/44 ,  H04N19/174 ,  H04N19/176 ,  H04N19/13

Abstract: The present invention relates to an entropy decoding method which includes: generating context related to a bin that forms a codeword of a syntax element; and performing arithmetic decoding of the bin based on the context.

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.

公开(公告)号：US10742988B2

公开(公告)日：2020-08-11

申请号：US15550721

申请日：2016-02-04

Applicant: LG Electronics Inc.

Inventor： Moonmo Koo ,  Jin Heo ,  Eunyong Son ,  Sehoon Yea ,  Seungwook Park ,  Kyuwoon Kim ,  Bumshik Lee

IPC: H04N19/14 ,  H04N19/96 ,  H04N19/122 ,  H04N19/119 ,  H04N19/61 ,  H04N19/176

Abstract: The present invention provides a method of decoding a video signal using graph-based transform comprising the steps: extracting prediction unit partition information of a current coding unit from the video signal; obtaining a graph-based transform kernel from predetermined table information based on the prediction unit partition information; and performing an inverse-transform of a transform unit using the graph-based transform kernel, wherein the graph-based transform kernel corresponds to at least one of the prediction unit partition information and an edge weight, and the edge weight is a predetermined value representing a correlation between pixels.

公开(公告)号：US10742985B2

公开(公告)日：2020-08-11

申请号：US16292037

申请日：2019-03-04

Applicant: LG ELECTRONICS INC.

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

IPC: H04N5/92 ,  H04N7/32 ,  G11B20/10 ,  H04N19/174 ,  G06K9/36 ,  H04N19/13 ,  H04N19/91 ,  H04N19/436 ,  H04N21/6336 ,  H04N19/124

Abstract: A video encoding method includes deriving entry point information specifying an entry point of a substream for a picture. The entry point information includes an offset syntax element when the number of the offset syntax elements is larger than 0, where the offset syntax element represents an entry point offset between two entry points. The entry point information includes a length syntax element when the number of the offset syntax elements is larger than 0, where the length syntax element represents a bits length for the offset syntax element. The offset syntax element represents the number of bytes between the two entry points. A value of the length syntax element plus one corresponds to the bits length of the offset syntax element. A value of the number syntax element corresponds to the number of offset syntax elements in the slice header.

公开(公告)号：US10715825B2

公开(公告)日：2020-07-14

申请号：US16256533

申请日：2019-01-24

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

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.