公开(公告)号：US12143615B2

公开(公告)日：2024-11-12

申请号：US18224967

申请日：2023-07-21

Applicant: LG ELECTRONICS INC.

Inventor： Jaeho Lee

IPC: H04N19/105 ,  H04N19/176 ,  H04N19/44 ,  H04N19/70

Abstract: Disclosed are a method for processing a video signal by using an affine motion prediction and an apparatus thereof. A method for processing a video signal according to the present disclosure may include: adding, to an affine candidate list, an affine coded block coded in an affine prediction mode among neighbor blocks of a current block; obtaining a syntax element indicating a candidate used for the affine motion prediction of the current block in the affine candidate list; deriving a control point motion vector predictor of the current block based on an affine motion model of the candidate indicated by the syntax element; deriving a control point motion vector of the current block by adding a control point motion vector difference to the control point motion vector predictor; and generating a prediction block of the current block by using the control point motion vector of the current block.

公开(公告)号：US12069295B2

公开(公告)日：2024-08-20

申请号：US18114499

申请日：2023-02-27

Applicant: LG ELECTRONICS INC.

Inventor： Jaeho Lee ,  Junghak Nam

IPC: H04N19/52 ,  H04N19/139 ,  H04N19/157 ,  H04N19/176

CPC classification number: H04N19/52 ,  H04N19/139 ,  H04N19/157 ,  H04N19/176

Abstract: A method for processing a video signal using an affine motion prediction is disclosed. The method includes checking that a current block is encoded by the affine motion prediction, obtaining motion vectors for a plurality of control points of the current block, determining a motion vector for each of a plurality of subblocks included in the current block based on the motion vectors for the plurality of control points, and performing a prediction for the current block from the motion vector for each of the plurality of subblocks, wherein each of the plurality of subblocks is configured to have a pre-defined width and a pre-defined height.

公开(公告)号：US11997260B2

公开(公告)日：2024-05-28

申请号：US18216260

申请日：2023-06-29

Applicant: LG ELECTRONICS INC.

Inventor： Jaeho Lee

IPC: H04N19/513 ,  H04N19/105 ,  H04N19/129 ,  H04N19/132 ,  H04N19/137 ,  H04N19/176

CPC classification number: H04N19/105 ,  H04N19/129 ,  H04N19/132 ,  H04N19/137 ,  H04N19/176

Abstract: A method by which a decoding apparatus performs image decoding, according to the present document, comprises the steps of: obtaining motion prediction information about a current block from a bitstream; generating an affine MVP candidate list for the current block; deriving CPMVPs for CPs of the current block on the basis of the affine MVP candidate list; deriving CPMVDs for the CPs of the current block on the basis of the motion prediction information; deriving CPMVs for the CPs of the current block on the basis of the CPMVPs and the CPMVDs; and deriving prediction samples for the current block on the basis of the CPMVs.

公开(公告)号：US11700398B2

公开(公告)日：2023-07-11

申请号：US17357032

申请日：2021-06-24

Applicant: LG ELECTRONICS INC.

Inventor： Jaeho Lee

IPC: H04N19/91 ,  H04N19/139 ,  H04N19/176 ,  H04N19/46 ,  H04N19/51 ,  H04N19/70

CPC classification number: H04N19/91 ,  H04N19/139 ,  H04N19/176 ,  H04N19/46 ,  H04N19/51 ,  H04N19/70

Abstract: The present invention relates to a method for performing entropy decoding on a video signal including a current block. The method comprises the steps of: deriving affine coding information and/or affine prediction mode information of a left block and/or an upper block which are adjacent to the current block; determining a context index of a syntax element associated with an affine prediction of the current block on the basis of at least one of the affine coding information and/or the affine prediction mode information of the left block and/or the upper block; and entropy decoding the syntax element associated with the affine prediction of the current block on the basis of the context index.

公开(公告)号：US11616975B2

公开(公告)日：2023-03-28

申请号：US17542676

申请日：2021-12-06

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/52 ,  H04N19/119 ,  H04N19/176

Abstract: An image decoding method according to the present document includes obtaining motion prediction information for a current block from a bitstream, generating an affine MVP candidate list for the current block, deriving CPMVPs for CPs of the current block based on the affine MVP candidate list, deriving CPMVDs for the CPs of the current block based on the motion prediction information, deriving CPMVs for the CPs of the current block based on the CPMVPs and the CPMVDs, and deriving prediction samples for the current block based on the CPMVs.

公开(公告)号：US11615593B2

公开(公告)日：2023-03-28

申请号：US17278011

申请日：2018-09-21

Applicant: LG ELECTRONICS INC.

Inventor： Dukyung Jung ,  Kihyung Lee ,  Jaeho Lee

IPC: G06T19/00 ,  G06T3/40 ,  G06K9/00 ,  G01C21/36 ,  G08G1/0968 ,  G06V20/56

Abstract: Disclosed is a mobile terminal that provides an augmented reality navigation screen in a state of being hold in a vehicle, the mobile terminal including: at least one camera configured to obtain a front image; a display; and at least one processor configured to calibrate the front image, and to drive an augmented reality navigation application so that the augmented reality navigation screen including at least one augmented reality (AR) graphic object and the calibrated front image is displayed on the display.

公开(公告)号：US11611744B2

公开(公告)日：2023-03-21

申请号：US17710086

申请日：2022-03-31

Applicant: LG Electronics Inc.

Inventor： Jaeho Lee

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

Abstract: A picture decoding method implemented by a decoding device, according to the present invention, comprises the steps of: acquiring motion prediction information from a bitstream; generating an affine MVP candidate list comprising affine MVP candidates for the current block; deriving CPMVPs for the respective CPs of the current block on the basis of one affine MVP candidate among the affine MVP candidates included in the affine MVP candidate list; deriving CPMVDs for the CPs of the current block on the basis of information on the CPMVDs for the respective CPs included in the acquired motion prediction information; and deriving CPMVs for the CPs of the current block on the basis of the CPMVPs and the CPMVDs.

公开(公告)号：US11606566B2

公开(公告)日：2023-03-14

申请号：US17093268

申请日：2020-11-09

Applicant: LG ELECTRONICS INC.

Inventor： Jaeho Lee

IPC: H04N19/52 ,  H04N19/159 ,  H04N19/105 ,  H04N19/176 ,  H04N19/70

Abstract: Disclosed are a method for decoding a video signal and an apparatus therefor. Specifically, a method for decoding an image based on an inter-prediction mode may include: configuring a merge candidate list by using motion information of a spatial candidate and a temporal candidate adjacent to a current block; parsing a first syntax element indicating a particular candidate applied to inter-prediction of the current block among a predefined number of candidates in the merge candidate list; deriving a refined candidate by adding a motion vector offset to a motion vector of a candidate indicated by the first syntax element; and generating a prediction block of the current block by using the motion information of the refined candidate.

公开(公告)号：US11601640B2

公开(公告)日：2023-03-07

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：US11570431B2

公开(公告)日：2023-01-31

申请号：US17512146

申请日：2021-10-27

Applicant: LG ELECTRONICS INC.

Inventor： Sunmi Yoo ,  Jaeho Lee ,  Jangwon Choi ,  Jungdong Seo ,  Jin Heo

IPC: H04N19/11 ,  H04N19/117 ,  H04N19/176 ,  H04N19/82

Abstract: A method by which a decoding device performs image decoding, according to the present invention, comprises the steps of: deriving an intra prediction mode of a current block; deriving neighboring samples including left neighboring samples and upper neighboring samples of the current block; deriving reference samples for prediction of a target sample among the neighboring samples on the basis of the position of the target sample of the current block and the prediction angle of the intra prediction mode; determining an interpolation filter for the target sample; and deriving the prediction sample of the target sample on the basis of the interpolation filter and the reference samples.