公开(公告)号：US20240323371A1

公开(公告)日：2024-09-26

申请号：US18680226

申请日：2024-05-31

Applicant: LG Electronics Inc.

Inventor： Seungwook PARK ,  Jaehyun LIM ,  Yongjoon JEON ,  Chulkeun KIM ,  Jungsun KIM ,  Naeri PARK ,  Hendry HENDRY ,  Byeongmoon JEON ,  Joonyoung PARK

IPC: H04N19/117 ,  H04N19/136 ,  H04N19/159 ,  H04N19/176 ,  H04N19/82 ,  H04N19/86

CPC classification number: H04N19/117 ,  H04N19/136 ,  H04N19/159 ,  H04N19/176 ,  H04N19/82 ,  H04N19/86

Abstract: A deblocking filtering method, a boundary strength (bS) deriving method, and encoding/decoding method and apparatus using the methods are provided. The bS deriving method includes the steps of: deriving a boundary of a deblocking filtering unit block which is a unit block on which deblocking filtering is performed; and setting a bS for each bS setting unit block in the deblocking filtering unit block. Here, the step of setting the bS includes setting a bS value of a target boundary corresponding to the boundary of the deblocking filtering unit block as the bS setting unit block.

公开(公告)号：US20240223779A1

公开(公告)日：2024-07-04

申请号：US18609817

申请日：2024-03-19

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 ,  H04N19/105 ,  H04N19/176 ,  H04N19/43 ,  H04N19/436 ,  H04N19/52 ,  H04N19/57

CPC classification number: H04N19/159 ,  H04N19/43 ,  H04N19/436 ,  H04N19/52 ,  H04N19/57 ,  H04N19/105 ,  H04N19/176

Abstract: An inter predication method is provided. The method includes: generating a merging candidate list of a block to be predicted and corresponding to a current prediction unit (PU); deriving motion information of the block to be predicted, on the basis of one of a plurality of merging candidates constituting the merging candidate list; and performing a prediction on the block to be predicted, on the basis of the derived motion information, to generate a prediction block corresponding to the current PU.

公开(公告)号：US20240187635A1

公开(公告)日：2024-06-06

申请号：US18436948

申请日：2024-02-08

Applicant: LG Electronics Inc.

Inventor： Hyeongmoon JANG ,  Junghak NAM ,  Naeri PARK

IPC: H04N19/513 ,  H04N19/109 ,  H04N19/136 ,  H04N19/176 ,  H04N19/587 ,  H04N19/70

CPC classification number: H04N19/513 ,  H04N19/109 ,  H04N19/136 ,  H04N19/176 ,  H04N19/587 ,  H04N19/70

Abstract: In the present disclosure, a method of decoding a video signal and a device therefor are disclosed. Specifically, a method of decoding an image based on an inter prediction mode includes deriving a motion vector of an available spatial neighboring block around a current block; deriving a collocated block of the current block based on the motion vector of the spatial neighboring block; deriving a motion vector in a sub-block unit in the current block based on a motion vector of the collocated block; and generating a prediction block of the current block using the motion vector derived in the sub-block unit, wherein the collocated block may be specified by the motion vector of the spatial neighboring block in one pre-defined reference picture.

公开(公告)号：US20240137553A1

公开(公告)日：2024-04-25

申请号：US18402108

申请日：2024-01-02

Applicant: LG ELECTRONICS INC.

Inventor： Hyeongmoon JANG ,  Naeri PARK ,  Junghak NAM

IPC: H04N19/513 ,  H04N19/176 ,  H04N19/587

CPC classification number: H04N19/513 ,  H04N19/176 ,  H04N19/587

Abstract: According to the disclosure of the present document, a subblock position for deriving a subblock unit motion vector in a subblock-based temporal motion vector prediction (sbTMVP) can be efficiently calculated, thereby enabling video/image coding efficiency to increase and a simplifying effect for hardware implementation to be obtained.

公开(公告)号：US20240129522A1

公开(公告)日：2024-04-18

申请号：US18397724

申请日：2023-12-27

Applicant: LG ELECTRONICS INC.

Inventor： Hyeongmoon JANG ,  Naeri PARK ,  Junghak NAM

IPC: H04N19/52 ,  H04N19/105 ,  H04N19/132 ,  H04N19/167 ,  H04N19/176

CPC classification number: H04N19/52 ,  H04N19/105 ,  H04N19/132 ,  H04N19/167 ,  H04N19/176

Abstract: According to the disclosure of the present document, in a subblock-based temporal motion vector prediction (sbTMVP), a position of a subblock for deriving a motion vector per subblock unit can be efficiently calculated, and thus video/image coding efficiency can be increased and hardware implementation can be simplified.

公开(公告)号：US20240064285A1

公开(公告)日：2024-02-22

申请号：US18386130

申请日：2023-11-01

Applicant: LG Electronics Inc.

Inventor： Naeri PARK ,  Junghak NAM ,  Hyeongmoon JANG

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

CPC classification number: 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：US20240048759A1

公开(公告)日：2024-02-08

申请号：US18381292

申请日：2023-10-18

Applicant: LG Electronics Inc.

Inventor： Naeri PARK ,  Junghak NAM ,  Hyeongmoon JANG

IPC: H04N19/577 ,  H04N19/109 ,  H04N19/159 ,  H04N19/52 ,  H04N19/139 ,  H04N19/176 ,  H04N19/105 ,  H04N19/132

CPC classification number: H04N19/577 ,  H04N19/109 ,  H04N19/159 ,  H04N19/52 ,  H04N19/139 ,  H04N19/176 ,  H04N19/105 ,  H04N19/132

Abstract: According to a disclosure of the present document, when the type of inter-prediction of a current block is indicated as biprediction, weight index information for a candidate within a merge candidate list or a sub-block merge candidate list may be derived, and coding efficiency may be increased.

公开(公告)号：US20230421798A1

公开(公告)日：2023-12-28

申请号：US18215648

申请日：2023-06-28

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/513 ,  H04N19/115 ,  H04N19/176 ,  H04N19/105 ,  H04N19/132 ,  H04N19/137

CPC classification number: H04N19/513 ,  H04N19/115 ,  H04N19/176 ,  H04N19/105 ,  H04N19/132 ,  H04N19/137

Abstract: According to an embodiment disclosed in the present document, it is possible to derive a history-based motion vector prediction (HMVP) buffer for a current block based on a history, and to derive 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：US20230232040A1

公开(公告)日：2023-07-20

申请号：US18125307

申请日：2023-03-23

Applicant: LG Electronics Inc.

Inventor： Jaehyun LIM ,  Seungwook PARK ,  Yongjoon JEON ,  Jungsun KIM ,  Hendry HENDRY ,  Byeongmoon JEON ,  Joonyoung PARK ,  Chulkeun KIM ,  Naeri PARK

IPC: H04N19/593 ,  H04N19/426 ,  H04N19/176 ,  H04N19/11 ,  H04N19/463 ,  H04N19/117 ,  H04N19/122 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13 ,  H04N19/159 ,  H04N19/174 ,  H04N19/44 ,  H04N19/61 ,  H04N19/625 ,  H04N19/82 ,  H04N19/96

CPC classification number: H04N19/593 ,  H04N19/426 ,  H04N19/176 ,  H04N19/11 ,  H04N19/463 ,  H04N19/117 ,  H04N19/122 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13 ,  H04N19/159 ,  H04N19/174 ,  H04N19/44 ,  H04N19/61 ,  H04N19/625 ,  H04N19/82 ,  H04N19/96

Abstract: A method for intra prediction comprises determining a first MPM candidate corresponding to a left-side candidate block on the basis of a position of the left-side candidate block adjacent to a left side of a current block; determining a second MPM candidate corresponding to an upper-end candidate block on the basis of a position of the upper-end candidate block adjacent to an upper end of the current block; generating an MPM candidate list including a plurality of MPM candidates, on the basis of the first MPM candidate and the second MPM candidate; and determining one MPM candidate of the pluraity of the MPM candidates that constitute the MPM candidate list as an intra prediction mode of the current block, and performing intra prediction for the current block on the basis of the determined intra prediction mode to generate a prediction block corresponding to the current block.

公开(公告)号：US20230217031A1

公开(公告)日：2023-07-06

申请号：US18119572

申请日：2023-03-09

Applicant: LG Electronics Inc.

Inventor： Joonyoung PARK ,  Byeongmoon JEON ,  Yongjoon JEON ,  Seungwook PARK ,  Jungsun KIM ,  Jaehyun LIM ,  Hendry HENDRY ,  Naeri PARK ,  Chulkeun KIM

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

CPC classification number: H04N19/105 ,  H04N19/159 ,  H04N19/176

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.