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.

公开(公告)号：US20220417564A1

公开(公告)日：2022-12-29

申请号：US17777370

申请日：2020-11-17

Applicant: LG Electronics Inc.

Inventor： Hendry HENDRY ,  Seethal PALURI ,  Seunghwan KIM

IPC: H04N19/82 ,  H04N19/136 ,  H04N19/132 ,  H04N19/103 ,  H04N19/172 ,  H04N19/117 ,  H04N19/70 ,  H04N19/167

Abstract: According to the embodiments of the present document, information necessary to control in-loop filtering performed across virtual boundaries can be efficiently signaled by a coding device. In one example, information related to whether in-loop filtering is available across virtual boundaries can be signaled.

公开(公告)号：US20220400291A1

公开(公告)日：2022-12-15

申请号：US17777265

申请日：2020-11-17

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Seethal PALURI ,  Seunghwan KIM

IPC: H04N19/82 ,  H04N19/18 ,  H04N19/103 ,  H04N19/132 ,  H04N19/117 ,  H04N19/70 ,  H04N19/167 ,  H04N19/176 ,  H04N19/61

Abstract: In a decoding method performed by a decoding apparatus according to embodiments of the present document, whether signaling of information related to virtual boundaries is present in a sequence parameter set (SPS) or picture header information may be determined based on a virtual boundaries enabled flag.

公开(公告)号：US20220400250A1

公开(公告)日：2022-12-15

申请号：US17774101

申请日：2020-11-05

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Seunghwan KIM ,  Jie ZHAO

IPC: H04N19/105 ,  H04N19/132 ,  H04N19/186 ,  H04N19/176 ,  H04N19/70

Abstract: According to the disclosure of this document, it is possible to signal information related to a chroma quantization parameter offset through a palette coding syntax, and to efficiently parse and signal index information for a chroma quantization parameter offset list on the basis of information about the number of entries in the chroma quantization parameter offset list. Accordingly, bits that need to be signaled for video/image coding can be reduced, and coding efficiency can be improved.

公开(公告)号：US20220353523A1

公开(公告)日：2022-11-03

申请号：US17857285

申请日：2022-07-05

Applicant: LG Electronics Inc.

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

IPC: H04N19/46 ,  H04N19/70 ,  H04N19/137 ,  H04N19/174

Abstract: A video decoding method by a video decoding apparatus, according to the present document, can comprise the steps of: parsing, from a picture parameter set of a bitstream, a first flag related to whether a weighted prediction is applied to slices referring to the picture parameter set; parsing, from the picture parameter set, a second flag related to whether information about the weighted prediction is present in a picture header of the bitstream or is present in a slice header of the bitstream based on the first flag; parsing a prediction weighted table syntax from the picture header or the slice header based on the first flag and the second flag; generating prediction samples for the current block by performing weighted prediction for the current block in a current picture based on syntax elements in the prediction weighted table syntax; and generating reconstructed samples based on the prediction samples.

公开(公告)号：US20220329832A1

公开(公告)日：2022-10-13

申请号：US17847622

申请日：2022-06-23

Applicant: LG Electronics Inc.

Inventor： Hendry HENDRY

IPC: H04N19/169 ,  H04N19/105 ,  H04N19/174 ,  H04N19/70

Abstract: According to the disclosure of the present document, a syntax structure and a syntax element may be provided wherein the syntax structure and syntax element enable, on the basis of whether an NAL unit type mixed with a picture is allowed, the existence of signaling-related information of a reference picture list with respect to a slice having a specific NAL unit type in the picture.

公开(公告)号：US20220329782A1

公开(公告)日：2022-10-13

申请号：US17843468

申请日：2022-06-17

Applicant: LG ELECTRONICS INC.

Inventor： Seethal PALURI ,  Hendry HENDRY ,  Seunghwan Kim ,  Jie Zhao

IPC: H04N19/105 ,  H04N19/70 ,  H04N19/132 ,  H04N19/176 ,  H04N19/172 ,  H04N19/51 ,  H04N19/174 ,  H04N19/137 ,  H04N19/159

Abstract: A video decoding method performed by a video decoding apparatus according to the present document may comprise the steps of: parsing a prediction weighted table syntax from a bitstream; parsing number information about weighted reference pictures in a reference picture list from the prediction weighted table syntax; deriving a weighting factor-related flag about the reference picture list on the basis of the number information; performing weighted prediction on a current block on the basis of the weighting factor-related flag so as to derive prediction samples of the current block; generating residual samples on the basis of residual information obtained from the bitstream; and reconstructing a current picture on the basis of the prediction samples and the residual samples, wherein the prediction weighted table syntax is parsed from a picture header of the bitstream.

公开(公告)号：US20220312014A1

公开(公告)日：2022-09-29

申请号：US17731077

申请日：2022-04-27

Applicant: LG ELECTRONICS, INC.

Inventor： Jie ZHAO ,  Seung Hwan KIM ,  Hendry HENDRY ,  Seethal PALURI

IPC: H04N19/132 ,  H04N19/18 ,  H04N19/186 ,  H04N19/176 ,  H04N19/70

Abstract: Provided are an image encoding/decoding method and apparatus. The image decoding method performed by the image decoding apparatus according to the present disclosure comprises: a step for determining whether color space transformation can be applied to a residual sample of a current block; a step for determining a quantization parameter of the current block based on whether the color space transformation can be applied; and a step for determining a transformation coefficient of the current block based on the quantization parameter.