公开(公告)号：US20240129475A1

公开(公告)日：2024-04-18

申请号：US18399123

申请日：2023-12-28

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Seethal PALURI ,  Seunghwan KIM

IPC: H04N19/132 ,  H04N19/174 ,  H04N19/176 ,  H04N19/70

CPC classification number: H04N19/132 ,  H04N19/174 ,  H04N19/176 ,  H04N19/70

Abstract: A method by which a video decoding device decodes a video, according to the present document, can comprise the steps of: parsing, from a bitstream, number information related to the number of slices of which the height within a tile of a current picture is explicitly signaled; parsing, from the bitstream, on the basis of the number information, height information related to the height of the slices of which the height is explicitly signaled; deriving the number of slices in the tile on the basis of the number information and the height information; generating prediction samples by predicting the current block of the current picture on the basis of the slices within the tile; generating reconstructed samples on the basis of the prediction samples; and generating a reconstructed picture for the current picture on the basis of the reconstructed samples.

公开(公告)号：US20240080447A1

公开(公告)日：2024-03-07

申请号：US18381446

申请日：2023-10-18

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/132 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/46 ,  H04N19/70

CPC classification number: H04N19/132 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/46 ,  H04N19/70

Abstract: A video decoding method performed by a video decoding device according to the present document comprises the steps of: acquiring image information from a bitstream, the image information including a picture header associated with the current picture including a plurality of slices; parsing, from the picture header, a first flag indicating whether information necessary for an inter-prediction operation for a decoding process is present in the picture header; parsing, from the picture header, a second flag indicating whether information necessary for an intra-prediction operation for the decoding process is present in the picture header; and generating prediction samples by performing at least one of intra-prediction or inter-prediction for the slices in the current picture on the basis of the first flag or the second flag.

公开(公告)号：US20240056566A1

公开(公告)日：2024-02-15

申请号：US18382246

申请日：2023-10-20

Applicant: LG Electronics Inc.

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

IPC: H04N19/105 ,  H04N19/132 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/503 ,  H04N19/70

CPC classification number: H04N19/105 ,  H04N19/132 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/503 ,  H04N19/70

Abstract: A video decoding method performed by a video decoding apparatus, according to the present document, comprises the steps of: parsing, from a bitstream, flags associated with weighted prediction; parsing a prediction weighted table syntax from a picture header of the bitstream on the basis of the flags; generating prediction samples regarding a current block in a current picture on the basis of syntax elements in the prediction weighted table syntax; and generating reconstructed samples on the basis of the prediction samples, wherein the flags comprise a first flag associated with whether the weighted prediction is applied to slices referring to a picture parameter set of the bitstream, and a second flag associated with whether information related to the weighted prediction is present in the picture header, and the second flag may be parsed from the picture parameter set on the basis of the first flag.

公开(公告)号：US20240031575A1

公开(公告)日：2024-01-25

申请号：US18222230

申请日：2023-07-14

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Seung Hwan KIM ,  Seethal PALURI

IPC: H04N19/136 ,  H04N19/172 ,  H04N19/174

CPC classification number: H04N19/136 ,  H04N19/172 ,  H04N19/174

Abstract: Disclosed herein are an image encoding/decoding method and apparatus. An image decoding method performed by an image encoding apparatus may include acquiring size information indicating a size of a current slice corresponding to at least a portion of a current picture from a bitstream and determining the size of the current slice based on the size information.

公开(公告)号：US20240015294A1

公开(公告)日：2024-01-11

申请号：US18131763

申请日：2023-04-06

Applicant: LG ELECTRONICS INC.

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

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

CPC classification number: H04N19/132 ,  H04N19/176 ,  H04N19/18 ,  H04N19/186 ,  H04N19/70

Abstract: An image encoding/decoding method and apparatus are provided. The image decoding method performed by the image decoding apparatus, according to the present disclosure, comprises the steps of: determining a current block by splitting an image on the basis of split information acquired from a bitstream; determining a quantization parameter of the current block; and determining a transform coefficient of the current block on the basis of the quantization parameter.

公开(公告)号：US20230319302A1

公开(公告)日：2023-10-05

申请号：US17915928

申请日：2021-03-31

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Seethal PALURI ,  Seung Hwan KIM

IPC: H04N19/503 ,  H04N19/105 ,  H04N19/184 ,  H04N19/31

CPC classification number: H04N19/503 ,  H04N19/105 ,  H04N19/184 ,  H04N19/31

Abstract: An image encoding/decoding method and apparatus is provided. The image decoding method performed by the image decoding apparatus may comprise determining inter-layer direct reference and determining the number of sublayers of a current layer based on the inter-layer direct reference.

公开(公告)号：US20230300350A1

公开(公告)日：2023-09-21

申请号：US18009248

申请日：2021-06-09

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Seung Hwan KIM ,  Jung Hak NAM ,  Hyeong Moon JANG ,  Seethal PALURI

IPC: H04N19/184 ,  H04N19/189 ,  H04N19/105 ,  H04N19/159 ,  H04N19/30

CPC classification number: H04N19/184 ,  H04N19/189 ,  H04N19/105 ,  H04N19/159 ,  H04N19/30

Abstract: An image encoding/decoding method and apparatus are provided. The image decoding method performed by the image decoding apparatus according to the present disclosure may include: obtaining, from a bitstream, maximum temporal identifier information indicating a maximum temporal identifier of a reference layer which is referred to for inter-layer prediction of a current layer; and performing, based on the maximum temporal identifier information, a sub-bitstream extraction process from the bitstream, wherein, in the sub-bitstream extraction process, among parameter sets of the reference layer, a parameter set not referred to for the inter-layer prediction of the current layer may be removed from the bitstream.

公开(公告)号：US20230269371A1

公开(公告)日：2023-08-24

申请号：US18141159

申请日：2023-04-28

Applicant: LG ELECTRONICS INC.

Inventor： Seethal PALURI ,  Seunghwan KIM

IPC: H04N19/117 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/82 ,  H04N19/91

CPC classification number: H04N19/117 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/82 ,  H04N19/91

Abstract: According to the disclosure of the present disclosure, the index of an alternative filter is derived from ALF information, and an ALF procedure for a chroma component of a current block can be performed on the basis of the alternative filter

公开(公告)号：US20230239512A1

公开(公告)日：2023-07-27

申请号：US18127492

申请日：2023-03-28

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Seethal PALURI ,  Seunghwan KIM

IPC: H04N19/82 ,  H04N19/18

CPC classification number: H04N19/82 ,  H04N19/18

Abstract: According to an image coding method according to embodiments of the present document, information related to in-loop filtering may be efficiently signaled, and repetitive procedures for signaling subpicture-related information may be reduced.

公开(公告)号：US20230209075A1

公开(公告)日：2023-06-29

申请号：US17925983

申请日：2021-05-04

Applicant: LG Electronics Inc.

Inventor： Hendry HENDRY ,  Seunghwan KIM ,  Seethal PALURI

IPC: H04N19/423 ,  H04N19/172 ,  H04N19/70 ,  H04N19/46

CPC classification number: H04N19/423 ,  H04N19/172 ,  H04N19/70 ,  H04N19/46

Abstract: An image decoding method performed by a decoding device according to the present document comprises the steps of: deriving a value of a variable on the basis of whether a current picture is a first picture of a current access unit (AU) that is a coded video sequence start access unit (CVSS) AU instead of AU 0, wherein the variable indicates whether all picture storage buffers within a decoded picture buffer (DPB) are emptied without being output; updating the DPB on the basis of the variable; and decoding the current picture on the basis of the updated DPB.