公开(公告)号：US11695948B2

公开(公告)日：2023-07-04

申请号：US17745524

申请日：2022-05-16

Applicant: LG ELECTRONICS INC.

Inventor： Jane Zhao ,  Seunghwan Kim

IPC: H04N19/00 ,  H04N19/51 ,  H04N19/176 ,  H04N19/423 ,  H04N19/52 ,  H04N19/503 ,  H04N19/70 ,  H04N19/105 ,  H04N19/55 ,  H04N19/103 ,  H04N19/513

CPC classification number: H04N19/51 ,  H04N19/176 ,  H04N19/423 ,  H04N19/103 ,  H04N19/105 ,  H04N19/503 ,  H04N19/513 ,  H04N19/52 ,  H04N19/55 ,  H04N19/70

Abstract: The disclosure discloses a method for processing a video signal and an apparatus therefor. Specifically, the method of processing a video signal based on an inter prediction, comprising: configuring a merge list based on a neighboring block of a current block; adding a history based merge candidate included in a history based merge candidate list to the merge list when a number of a merge candidate included in the merge list is smaller than a first predetermined number; obtaining a merge index indicating a merge candidate used for an inter prediction of the current block within the merge list; and generating a prediction block of the current block based on motion information of a merge candidate indicated by the merge index, wherein a step of adding the history based merge candidate to the merge list comprises checking whether a second predetermined number of the history based merge candidate within the history based merge candidate list has the same motion information as the merge candidate included in the merge list.

公开(公告)号：US11924406B2

公开(公告)日：2024-03-05

申请号：US16937409

申请日：2020-07-23

Applicant: LG ELECTRONICS INC.

Inventor： Jane Zhao ,  Seunghwan Kim

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

CPC classification number: H04N19/105 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176

Abstract: The disclosure discloses a method for processing video signals and an apparatus therefor. Specifically, the method of processing video signals based on history based motion vector prediction, comprising: configuring a merge candidate list based on a neighboring block to a current block; adding a history based merge candidate of the current block to the merge candidate list when a number of merge candidates included in the merge candidate list is smaller than a first predetermined number; adding a zero motion vector to the merge candidate list when the number of merge candidates included in the merge candidate list is smaller than a second predetermined number; obtaining a merge index indicating a merge candidate used for inter prediction of the current block in the merge candidate list; generating a prediction sample of the current block based on motion information of the merge candidate indicated by the merge index; and updating a history based merge candidate list based on the motion information.

公开(公告)号：US11368706B2

公开(公告)日：2022-06-21

申请号：US16937025

申请日：2020-07-23

Applicant: LG Electronics Inc.

Inventor： Jane Zhao ,  Seunghwan Kim

IPC: H04N19/00 ,  H04N19/51 ,  H04N19/176 ,  H04N19/423 ,  H04N19/52 ,  H04N19/503 ,  H04N19/70 ,  H04N19/105 ,  H04N19/55 ,  H04N19/103 ,  H04N19/513

Abstract: The disclosure discloses a method for processing a video signal and an apparatus therefor. Specifically, the method of processing a video signal based on an inter prediction, comprising: configuring a merge list based on a neighboring block of a current block; adding a history based merge candidate included in a history based merge candidate list to the merge list when a number of a merge candidate included in the merge list is smaller than a first predetermined number; obtaining a merge index indicating a merge candidate used for an inter prediction of the current block within the merge list; and generating a prediction block of the current block based on motion information of a merge candidate indicated by the merge index, wherein a step of adding the history based merge candidate to the merge list comprises checking whether a second predetermined number of the history based merge candidate within the history based merge candidate list has the same motion information as the merge candidate included in the merge list.

公开(公告)号：US11297330B2

公开(公告)日：2022-04-05

申请号：US16578974

申请日：2019-09-23

Applicant: LG ELECTRONICS INC.

Inventor： Jane Zhao ,  Seethal Paluri ,  Seunghwan Kim

IPC: H04N19/176 ,  H04N19/52 ,  H04N19/105 ,  H04N19/159 ,  H04N19/137

Abstract: A method of processing a video signal based on inter prediction includes constructing a first merge candidate list of a current block using a spatial merge candidate and temporal merge candidate of the current block, constructing a second merge candidate list by adding a history-based merge candidate indicating motion information of a block coded prior to the current block to the first merge candidate list, obtaining a merge index indicating a merge candidate applied to the current block within the second merge candidate list, and generating a prediction block of the current block using motion information of a merge candidate indicated by the merge index. The history-based merge candidate may be added to the first merge candidate list if the history-based merge candidate has motion information not overlapping motion information of a pre-defined merge candidate among merge candidates included in the first merge candidate list.

公开(公告)号：US12120342B2

公开(公告)日：2024-10-15

申请号：US18387809

申请日：2023-11-07

Applicant: LG ELECTRONICS INC.

Inventor： Jane Zhao ,  Seunghwan Kim

IPC: H04N19/56 ,  H04N19/176 ,  H04N19/513

CPC classification number: H04N19/56 ,  H04N19/176 ,  H04N19/513

Abstract: The disclosure discloses a method for processing video signals and an apparatus therefor. Specifically, the method of processing video signals based on inter prediction, comprising: configuring a merge candidate list based on a spatial neighboring block and a temporal neighboring block to a current block; adding a history-based merge candidate of the current block to the merge candidate list; obtaining a merge index indicating a merge candidate used for an inter prediction of the current block within the merge candidate list; generating a prediction sample of the current block based on motion information of the merge candidate indicated by the merge index; and updating a history-based merge candidate list based on the motion information.

公开(公告)号：US11653022B2

公开(公告)日：2023-05-16

申请号：US17941628

申请日：2022-09-09

Applicant: LG ELECTRONICS INC.

Inventor： Jane Zhao ,  Seunghwan Kim

IPC: H04N19/56 ,  H04N19/176 ,  H04N19/513

CPC classification number: H04N19/56 ,  H04N19/176 ,  H04N19/513

Abstract: The disclosure discloses a method for processing video signals and an apparatus therefor. Specifically, the method of processing video signals based on inter prediction, comprising: configuring a merge candidate list based on a spatial neighboring block and a temporal neighboring block to a current block; adding a history-based merge candidate of the current block to the merge candidate list; obtaining a merge index indicating a merge candidate used for an inter prediction of the current block within the merge candidate list; generating a prediction sample of the current block based on motion information of the merge candidate indicated by the merge index; and updating a history-based merge candidate list based on the motion information.

公开(公告)号：US11595639B2

公开(公告)日：2023-02-28

申请号：US17277926

申请日：2019-09-23

Applicant: LG ELECTRONICS INC.

Inventor： Jane Zhao ,  Seethal Paluri ,  Seunghwan Kim

IPC: H04N19/105 ,  H04N19/46 ,  H04N19/176 ,  H04N19/137

Abstract: Disclosed are a method for processing video signals and an apparatus therefor. Specifically, the method for processing video signals on the basis of inter prediction comprises the steps of: inducing a motion vector predictor using motion data of a neighboring block of the current block; parsing layer data indicating the current layer to which a motion vector difference used in inter prediction of the current block belongs, in a previously defined layer structure in which the combination of one or more horizontal and vertical components of motion vector differences are divided into multiple layers; parsing index data indicating a particular combination within the current layer; inducing a motion vector difference of the current block using the layer data and index data; and inducing the motion vector for the current block by adding the motion vector difference to the motion vector predictor.

公开(公告)号：US11570430B2

公开(公告)日：2023-01-31

申请号：US17311044

申请日：2019-12-06

Applicant: LG Electronics Inc.

Inventor： Jane Zhao ,  Seunghwan Kim

IPC: H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/513

Abstract: The present invention provides a method of processing a video signal based on inter prediction, the method comprises constructing a merge list based on a neighboring block of a current block; adding a history-based merge candidate representing motion information of a previously coded block of the current block to the merge list; obtaining a merge index indicating a merge candidate used for inter prediction of the current block within the merge list; generating a prediction block of the current block based on motion information of the merge candidate indicated by the merge index; and adding a residual block of the current block to the prediction block to reconstruct the current block, wherein when the history-based merge candidate has motion information that is not redundant with a pre-defined merge candidate among merge candidates included in the merge list, the history-based merge candidate is added to the merge list.

公开(公告)号：US12273536B2

公开(公告)日：2025-04-08

申请号：US18403388

申请日：2024-01-03

Applicant: LG ELECTRONICS INC.

Inventor： Jane Zhao ,  Seethal Paluri ,  Seunghwan Kim

IPC: H04N19/105 ,  H04N19/137 ,  H04N19/159 ,  H04N19/176

Abstract: The disclosure discloses a method for processing a video signal and an apparatus therefor. Specifically, a method of processing a video signal based on inter prediction includes constructing a first merge candidate list of a current block using a spatial merge candidate and temporal merge candidate of the current block, constructing a second merge candidate list by adding a history-based merge candidate indicating motion information of a block coded prior to the current block to the first merge candidate list, obtaining a merge index indicating a merge candidate applied to the current block within the second merge candidate list, and generating a prediction block of the current block using motion information of a merge candidate indicated by the merge index. The history-based merge candidate may be added to the first merge candidate list if the history-based merge candidate has motion information not overlapping motion information of a pre-defined merge candidate among merge candidates included in the first merge candidate list.

公开(公告)号：US12143621B2

公开(公告)日：2024-11-12

申请号：US18403248

申请日：2024-01-03

Applicant: LG ELECTRONICS INC.

Inventor： Jane Zhao ,  Seunghwan Kim

IPC: H04N19/00 ,  H04N19/176 ,  H04N19/423 ,  H04N19/51 ,  H04N19/103 ,  H04N19/105 ,  H04N19/503 ,  H04N19/513 ,  H04N19/52 ,  H04N19/55 ,  H04N19/70

Abstract: The disclosure discloses a method for processing a video signal and an apparatus therefor. Specifically, the method of processing a video signal based on an inter prediction, comprising: configuring a merge list based on a neighboring block of a current block; adding a history based merge candidate included in a history based merge candidate list to the merge list when a number of a merge candidate included in the merge list is smaller than a first predetermined number; obtaining a merge index indicating a merge candidate used for an inter prediction of the current block within the merge list; and generating a prediction block of the current block based on motion information of a merge candidate indicated by the merge index, wherein a step of adding the history based merge candidate to the merge list comprises checking whether a second predetermined number of the history based merge candidate within the history based merge candidate list has the same motion information as the merge candidate included in the merge list.