公开(公告)号：US11445184B2

公开(公告)日：2022-09-13

申请号：US17550476

申请日：2021-12-14

Applicant: LG Electronics Inc.

Inventor： Naeri Park ,  Junghak Nam ,  Hyeongmoon Jang

IPC: H04N19/105 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176

Abstract: According to the disclosure of the present document, when the inter prediction type of a current block indicates bi-prediction, weight index information for candidates in a merge candidate list or a sub-block merge candidate list can be derived, and thus coding efficiency can be increased.

公开(公告)号：US11284083B2

公开(公告)日：2022-03-22

申请号：US17353137

申请日：2021-06-21

Applicant: LG Electronics Inc.

Inventor： Ling Li ,  Jaehyun Lim ,  Naeri Park ,  Junghak Nam ,  Hyeongmoon Jang

IPC: H04N19/46 ,  H04N19/132 ,  H04N19/119 ,  H04N19/159 ,  H04N19/176

Abstract: A video decoding method performed by a decoding apparatus according to the present disclosure comprises the steps of: receiving a bitstream including information about merge data of a current block; checking mh intra flag information for mh intra prediction which is included in the information about the merge data; checking information about a merge triangle prediction on the basis of a checking result that a value of the mh intra flag information is related to checking the information about the merge triangle prediction included in the information about the merge data; deriving prediction samples for the current block on the basis of a result of checking the information about the merge triangle prediction; and generating a reconstructed picture on the basis of the prediction samples.

公开(公告)号：US11184629B2

公开(公告)日：2021-11-23

申请号：US16863885

申请日：2020-04-30

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/436 ,  H04N19/174 ,  H04N19/119 ,  H04N19/70

Abstract: The present invention relates to a video encoding method, a video decoding method, and a device using the same, and the video encoding method according to the present invention comprises the steps of: specifying a tile and a slice by partitioning an inputted picture; performing encoding on the basis of the tile and the slice; and transmitting the encoded video information, wherein the picture is partitioned into one or more tiles and one or more slices, and the restrictions for parallel processing can be applied to the tiles and the slices.

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：US11025945B2

公开(公告)日：2021-06-01

申请号：US16793789

申请日：2020-02-18

Applicant: LG ELECTRONICS INC.

Inventor： Naeri Park ,  Seunghwan Kim ,  Junghak Nam ,  Jaehyun Lim ,  Hyeongmoon Jang

IPC: H04N19/513 ,  H04N19/115 ,  H04N19/176

Abstract: An image decoding method performed by a decoding apparatus, includes deriving a history-based motion vector prediction (HMVP) buffer for a current block based on a history, and deriving motion information of the current block based on an HMVP candidate included in the HMVP buffer, thereby increasing inter prediction efficiency.

公开(公告)号：US20210120236A1

公开(公告)日：2021-04-22

申请号：US17138245

申请日：2020-12-30

Applicant: LG ELECTRONICS INC.

Inventor： Naeri Park ,  Junghak Nam ,  Hyeongmoon Jang ,  Jaeho Lee

IPC: H04N19/105 ,  H04N19/132 ,  H04N19/176 ,  H04N19/423 ,  H04N19/533 ,  H04N19/70

Abstract: According to an embodiment disclosed in the present specification, a history-based motion vector prediction (HMVP) candidate set with respect to a current block may be derived based on a history, the HMVP candidate set may be updated or initialized according to a condition, and motion information of the current block may be derived based on the HMVP candidate set, through which inter prediction efficiency can be improved.

公开(公告)号：US10924730B2

公开(公告)日：2021-02-16

申请号：US16347422

申请日：2016-11-07

Applicant: LG ELECTRONICS INC.

Inventor： Naeri Park ,  Jungdong Seo ,  Jaehyun Lim ,  Junghak Nam

IPC: H04N19/117 ,  H04N19/105 ,  H04N19/13 ,  H04N19/159 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/172 ,  H04N19/91 ,  H04N19/132 ,  H04N19/86 ,  H04N19/109

Abstract: According to the present invention, an image decoding method performed by a decoding device comprises the steps of: generating a first prediction block and a second prediction block of a current block; selecting a prediction block, to which a Wiener filter is to be applied, among the first prediction block and the second prediction block; deriving Wiener filter coefficients of the selected prediction block based on the first prediction block and the second prediction block; filtering the selected prediction block based on the derived Wiener filter coefficients; and generating a reconstructed block of the current block based on the filtered prediction block. According to the present invention, the overall coding efficiency can be improved by minimizing the difference between prediction blocks.

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：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.