公开(公告)号：US12149748B2

公开(公告)日：2024-11-19

申请号：US17788473

申请日：2020-12-23

Applicant: LG Electronics Inc.

Inventor： Hendry Hendry

IPC: H04N19/82 ,  H04N19/117 ,  H04N19/12 ,  H04N19/124 ,  H04N19/132 ,  H04N19/167 ,  H04N19/169 ,  H04N19/172 ,  H04N19/176 ,  H04N19/18 ,  H04N19/463 ,  H04N19/60

Abstract: A picture may be divided into sub-pictures/slices/tiles. For example, the picture may be divided into sub-picture(s), and subpicture-related information may be used for coding. The sub-picture-related information may be generated by an encoding device and transmitted to a decoding device. According to embodiments of the present document, sub-picture-related information can be efficiently signaled.

公开(公告)号：US12120332B2

公开(公告)日：2024-10-15

申请号：US18234274

申请日：2023-08-15

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry ,  Joonyoung Park ,  Yongjoon Jeon ,  Byeongmoon Jeon ,  Jungsun Kim ,  Jaehyun Lim ,  Chulkeun Kim ,  Naeri Park ,  Seungwook Park

IPC: H04N19/436 ,  H04N19/119 ,  H04N19/174 ,  H04N19/70

CPC classification number: H04N19/436 ,  H04N19/119 ,  H04N19/174 ,  H04N19/70

Abstract: The present invention relates to a video encoding method, a video decoding method, and a device using the same, and the video encoding method according to the present invention comprises the steps of: specifying a tile and a slice by partitioning an inputted picture; performing encoding on the basis of the tile and the slice; and transmitting the encoded video information, wherein the picture is partitioned into one or more tiles and one or more slices, and the restrictions for parallel processing can be applied to the tiles and the slices.

公开(公告)号：US12096042B2

公开(公告)日：2024-09-17

申请号：US17777371

申请日：2020-11-17

Applicant: LG Electronics Inc.

Inventor： Hendry Hendry ,  Seethal Paluri ,  Seunghwan Kim

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

CPC classification number: H04N19/82 ,  H04N19/117 ,  H04N19/132 ,  H04N19/167 ,  H04N19/172 ,  H04N19/70

Abstract: A decoding method performed by a decoding apparatus, according to embodiments of the present document, may comprise the steps of: acquiring, via a bitstream, image information including residual information; generating reconstructed samples of a current picture on the basis of the residual information; and generating modified reconstructed samples by performing an in-loop filtering procedure on the reconstructed samples of the current picture, wherein whether or not the in-loop filtering procedure is performed across virtual boundaries is determined. The virtual boundaries can bring, to the decoding apparatus, advantages from a hardware perspective.

公开(公告)号：US12095982B2

公开(公告)日：2024-09-17

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 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70

CPC classification number: H04N19/105 ,  H04N19/132 ,  H04N19/176 ,  H04N19/186 ,  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：US20240259573A1

公开(公告)日：2024-08-01

申请号：US17914239

申请日：2021-03-23

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry ,  Seung Hwan Kim

IPC: H04N19/169 ,  H04N19/119 ,  H04N19/136 ,  H04N19/174 ,  H04N19/184 ,  H04N19/70

CPC classification number: H04N19/188 ,  H04N19/119 ,  H04N19/136 ,  H04N19/174 ,  H04N19/184 ,  H04N19/70

Abstract: An image encoding/decoding method and apparatus are provided. The image decoding method includes obtaining, from a bitstream, network abstraction layer (NAL) unit type information of at least one NAL unit including coded image data, determining a NAL unit type of at least one slice in the current picture based on the obtained NAL unit type information, and decoding the at least one slice based on the determined NAL unit type. The current picture includes a plurality of subpictures having different NAL unit types, the bitstream is a single bitstream obtained by merging a plurality of subpicture bitstreams for the subpictures.

公开(公告)号：US12052433B2

公开(公告)日：2024-07-30

申请号：US18227267

申请日：2023-07-27

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry

IPC: H04N19/46 ,  H04N19/169 ,  H04N19/174

CPC classification number: H04N19/46 ,  H04N19/174 ,  H04N19/188

Abstract: Disclosed herein are an image encoding and decoding method and apparatus for signaling information on a subpicture and picture header, and a method of transmitting a bitstream. The image decoding method according to the present disclosure may include acquiring a first flag specifying whether information on a subpicture is present in a bitstream, acquiring a second flag specifying whether picture header information is present in a slice header, and decoding the bitstream based on the first flag and the second flag. When the first flag specifies that the information on the subpicture is present in the bitstream, the second flag may have a value specifying that the picture header information is not present in the slice header.

公开(公告)号：US12052423B2

公开(公告)日：2024-07-30

申请号：US18130211

申请日：2023-04-03

Applicant: LG ELECTRONICS INC.

Inventor： Seethal Paluri ,  Hendry Hendry ,  Seunghwan Kim ,  Jie Zhao

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

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

Abstract: A video decoding method performed by a video decoding device according to the present document may comprise 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, at least one of a first flag indicating whether information necessary for an inter-prediction operation for a decoding process is present in the picture header, or a second flag indicating whether information necessary for an intra-prediction operation for the decoding process is present in the picture header; 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 at least one of the first flag or the second flag; and generating reconstructed samples on the basis of the prediction samples.

公开(公告)号：US12028536B2

公开(公告)日：2024-07-02

申请号：US17774438

申请日：2020-11-05

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry ,  Seunghwan Kim ,  Jie Zhao

IPC: H04N19/186 ,  H04N19/124 ,  H04N19/176 ,  H04N19/70

CPC classification number: H04N19/186 ,  H04N19/124 ,  H04N19/176 ,  H04N19/70

Abstract: According to the disclosure of the present document, chroma quantization parameter offset-related information can be signaled through palette syntax coding, and index information for a chroma quantization parameter offset list can be efficiently parsed/signaled on the basis of information about the number of entries in the chroma quantization parameter offset list. Accordingly, bits that are required to be signaled in order to code a video/image can be reduced, and the coding efficiency can be enhanced.

公开(公告)号：US12015796B2

公开(公告)日：2024-06-18

申请号：US17769903

申请日：2020-09-25

Applicant: LG Electronics Inc.

Inventor： Hendry Hendry

IPC: H04N19/119 ,  H04N19/13 ,  H04N19/136 ,  H04N19/172 ,  H04N19/174 ,  H04N19/30 ,  H04N19/463

CPC classification number: H04N19/463 ,  H04N19/119 ,  H04N19/13 ,  H04N19/136 ,  H04N19/172 ,  H04N19/174 ,  H04N19/30

Abstract: According to the disclosures of the present document, entry point-related information/parameter can be signaled by means of upper-level syntax, thereby allowing the amount of data necessary to be signaled for video/image coding to be reduced and coding efficiency to be increased.

公开(公告)号：US11949883B2

公开(公告)日：2024-04-02

申请号：US18093194

申请日：2023-01-04

Applicant: LG Electronics Inc.

Inventor： Yongjoon Jeon ,  Seungwook Park ,  Jaehyun Lim ,  Chulkeun Kim ,  Jungsun Kim ,  Naeri Park ,  Hendry Hendry ,  Byeongmoon Jeon ,  Joonyoung Park

IPC: H04N19/159 ,  H04N19/43 ,  H04N19/436 ,  H04N19/52 ,  H04N19/57 ,  H04N19/105 ,  H04N19/176

CPC classification number: H04N19/159 ,  H04N19/43 ,  H04N19/436 ,  H04N19/52 ,  H04N19/57 ,  H04N19/105 ,  H04N19/176

Abstract: According to the present invention, an inter prediction method comprises the steps of: generating a merge candidate list for a block to be predicted, wherein the block is to correspond to a current prediction unit; deriving, on the basis of one of a plurality of merge candidates constituting the merge candidate list, motion information on the block to be predicted; and performing, on the basis of the derived motion information, a prediction on the block to be predicted so as to generate a prediction block corresponding to the current prediction unit.