公开(公告)号：US20230171538A1

公开(公告)日：2023-06-01

申请号：US17718042

申请日：2022-04-11

Applicant: LG ELECTRONICS INC.

Inventor： Daegee KANG ,  Seunghark PAEK ,  Minkoo KIM ,  Seunghwan KIM

IPC: H04R1/28 ,  H04R1/02 ,  H04R7/12 ,  H04R7/18 ,  H04R7/26 ,  H04R9/06 ,  H04R9/02

CPC classification number: H04R1/288 ,  H04R1/025 ,  H04R7/12 ,  H04R7/18 ,  H04R7/26 ,  H04R9/06 ,  H04R9/025

Abstract: Disclosed herein is a sound output apparatus including a case including a hole, and a speaker unit including a first speaker unit and a second speaker unit, wherein the first speaker unit and the second speaker unit are mounted on the case through the hole, spaced apart from each other by a preset distance, and symmetrically arranged, wherein the first speaker unit and the second speaker unit output sound in opposite directions.

公开(公告)号：US20230143945A1

公开(公告)日：2023-05-11

申请号：US17919674

申请日：2021-05-11

Applicant: LG Electronics Inc.

Inventor： Moonmo KOO ,  Jie ZHAO ,  Seunghwan KIM ,  Jaehyun LIM

IPC: H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/70 ,  H04N19/46

CPC classification number: H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/70 ,  H04N19/46

Abstract: An image decoding method according to the present document comprises the steps of: receiving an intra-MIP syntax element for a first target block; deriving the value of the intra-MIP syntax element; setting a variable MIP flag for the preset specific area, which is the same as the area of the first target block, on the basis of the value of the intra-MIP syntax element; deriving an intra-prediction mode of the second target block on the basis of the variable MIP flag; and deriving a prediction sample of the second target block on the basis of the intra-prediction mode of the second target block.

公开(公告)号：US20230133403A1

公开(公告)日：2023-05-04

申请号：US18089100

申请日：2022-12-27

Applicant: LG ELECTRONICS INC.

Inventor： Moonmo KOO ,  Mehdi SALEHIFAR ,  Seunghwan KIM ,  Jaehyun LIM

IPC: H04N19/18 ,  H04N19/11 ,  H04N19/122 ,  H04N19/124 ,  H04N19/129 ,  H04N19/159 ,  H04N19/176 ,  H04N19/184 ,  H04N19/593 ,  H04N19/61 ,  H04N19/91

Abstract: An image decoding method according to the present disclosure includes deriving transform coefficients through dequantization based on the quantized transform coefficients for the target block; deriving modified transform coefficients based on an inverse reduced secondary transform (RST) for the transform coefficients; deriving residual samples for the target block based on an inverse primary transform for the modified transform coefficients; and generating a reconstructed samples based on the residual samples, and prediction samples derived based on an intra prediction mode for the target block, wherein the inverse RST is performed based on a transform kernel matrix selected from a transform set including a plurality of transform kernel matrices, the transform set is determined based on a mapping relationship according to the intra prediction mode applied to the target block, and a plurality of intra prediction modes including the intra prediction mode of the target block are mapped to one transform set.

公开(公告)号：US20230100733A1

公开(公告)日：2023-03-30

申请号：US17858707

申请日：2022-07-06

Applicant: LG Electronics Inc.

Inventor： Seethal PALURI ,  Hendry HENDRY ,  Jie ZHAO ,  Seunghwan KIM

IPC: H04N19/132 ,  H04N19/70 ,  H04N19/176 ,  H04N19/137 ,  H04N19/51 ,  H04N19/46

Abstract: According to the present document, a video decoding method performed by a video decoding apparatus may comprise the steps of: parsing a first flag and a second flag from a bitstream, wherein the first flag is related to whether weighted prediction is applied to slices referring to a picture parameter set, and the second flag is related to whether information relating to the weighted prediction exists in a picture header; parsing a prediction weighted table syntax from the picture header based on the first flag and the second flag; generating prediction samples for a current block in a current picture based on syntax elements within the prediction weighted table syntax; generating residual samples based on residual information; and generating reconstructed samples based on the prediction samples and the residual samples, wherein the second flag is parsed from the picture parameter set based on the first flag.

公开(公告)号：US20230064931A1

公开(公告)日：2023-03-02

申请号：US17792122

申请日：2021-01-12

Applicant: LG ELECTRONICS INC.

Inventor： Moonmo KOO ,  Seunghwan KIM ,  Jaehyun LIM

IPC: H04N19/132 ,  H04N19/96 ,  H04N19/18 ,  H04N19/186 ,  H04N19/176

Abstract: An image decoding method according to the present document may comprise deriving transform coefficients for a current block, based on the residual information; deriving residual samples for the current block from the transform coefficients, based on LFNST or MTS; and receiving an LFNST index related to an LFNST matrix when the LFNST is applied to the current block, wherein the LFNST index is signaled at a transform unit level for the current block, after deriving the transform coefficients for the current block.

公开(公告)号：US20230063796A1

公开(公告)日：2023-03-02

申请号：US17789483

申请日：2020-12-28

Applicant: LG ELECTRONICS INC.

Inventor： Moonmo KOO ,  Seunghwan KIM ,  Mehdi SALEHIFAR ,  Jaehyun LIM

IPC: H04N19/132 ,  H04N19/18 ,  H04N19/176 ,  H04N19/46

Abstract: An image decoding method according to the present document comprises the steps of: receiving residual information in a bitstream, wherein the residual information includes a transform skip flag for each individual component of the current block; deriving corrected transform coefficients, wherein the step for deriving includes a step for setting a variable indicating whether effective coefficients exist at positions other than that of a DC component of the current block to 0 when even one of the values of the transform skip flags for the individual components is 0, and a step for parsing an LFNST index on the basis of the variable being 0; and deriving an LFNST kernel for applying LFNST on the basis of the LFNST index, wherein the variable being 0 may indicate that effective coefficients exist at positions other than that of the DC component.

公开(公告)号：US20230030970A1

公开(公告)日：2023-02-02

申请号：US17952901

申请日：2022-09-26

Applicant: LG ELECTRONICS INC.

Inventor： Jungah CHOI ,  Jin HEO ,  Sunmi YOO ,  Jaehyun LIM ,  Jangwon CHOI ,  Seunghwan KIM

IPC: H04N19/70 ,  H04N19/132 ,  H04N19/176 ,  H04N19/18 ,  H04N19/46

Abstract: An image decoding method performed by a decoding apparatus, according to the present document, comprises the steps of: acquiring syntax elements for a first transform coefficient through an n-th transform coefficient of a current block, wherein the syntax elements are syntax elements according to a first residual data coding structure of TSRC; and acquiring syntax elements for an n+1st transform coefficient through a last transform coefficient of the current block, wherein the syntax elements are syntax elements according to a second residual data coding structure of the TSRC, wherein the number of context-coded syntax elements for the first transform coefficient through the n-th transform coefficient is equal to the maximum number of context-coded bins of the current block, and the syntax elements according to the second residual data coding structure include coefficient level information and a sign flag for a transform coefficient.

公开(公告)号：US20230029653A1

公开(公告)日：2023-02-02

申请号：US17780333

申请日：2020-11-26

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Seethal PALURI ,  Seunghwan KIM

IPC: H04N19/119 ,  H04N19/70 ,  H04N19/174 ,  H04N19/196 ,  H04N19/167

Abstract: In a method for decoding an image by a decoding apparatus according to the present disclosure, a current picture is configured to include a single slice, on the basis of a flag indicating whether information on a subpicture exists and a flag indicating whether the subpicture includes a single slice.

公开(公告)号：US20230028326A1

公开(公告)日：2023-01-26

申请号：US17783438

申请日：2020-11-12

Applicant: LG Electronics Inc.

Inventor： Hendry HENDRY ,  Seunghwan KIM

IPC: H04N19/46 ,  H04N19/105 ,  H04N19/174 ,  H04N19/172

Abstract: According to the document of the present document, information/parameters associated with an entry point can be signaled on the basis of a WPP-associated entry point offset-present flag and a tile-associated entry point offset-present flag, and the effect of increasing coding efficiency, which is the primary purpose of parallel processing in encoding/decoding, can be derived therefrom.

公开(公告)号：US20230018055A1

公开(公告)日：2023-01-19

申请号：US17783959

申请日：2020-12-10

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Seunghwan KIM

IPC: H04N19/117 ,  H04N19/82 ,  H04N19/132 ,  H04N19/176 ,  H04N19/46

Abstract: Proposed in an image decoding method according to the present disclosure is indication information regarding whether an adaptive loop filter (ALF) procedure to be applied to a current block is applied at a picture level or at a slice level.