公开(公告)号：US20240267566A1

公开(公告)日：2024-08-08

申请号：US18635952

申请日：2024-04-15

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Seethal PALURI ,  Seunghwan KIM

IPC: H04N19/70 ,  H04N19/107 ,  H04N19/119 ,  H04N19/136 ,  H04N19/172 ,  H04N19/174 ,  H04N19/503 ,  H04N19/593

CPC classification number: H04N19/70 ,  H04N19/107 ,  H04N19/119 ,  H04N19/136 ,  H04N19/172 ,  H04N19/174 ,  H04N19/503 ,  H04N19/593

Abstract: A video decoding method performed by a video decoding apparatus according to the present document comprises: parsing number information about the number of slices for which height is explicitly signaled in a tile of a current picture from a bitstream; parsing height information about the height of the slices for which height is explicitly signaled from the bitstream based on the number information; and decoding the current picture based on the number information and the height information.

公开(公告)号：US20240195970A1

公开(公告)日：2024-06-13

申请号：US18583100

申请日：2024-02-21

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Seunghwan KIM ,  Jie ZHAO

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

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

Abstract: According to the disclosure of the present document, chroma quantization parameter offset-related information may be signaled via a palette coding syntax, and index information about a chroma quantization parameter offset list may be efficiently parsed/signaled on the basis of information about the number of entries within 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：US20240129511A1

公开(公告)日：2024-04-18

申请号：US18395252

申请日：2023-12-22

Applicant: LG Electronics Inc.

Inventor： Hendry HENDRY

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

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

Abstract: An image encoding/decoding method and apparatus are provided. The image decoding method comprises obtaining, from a bitstream, video coding layer (VCL) network abstraction layer (NAL) unit type information of a current picture and first flag information specifying whether a subpicture included in the current picture is treated as one picture, determining a NAL unit type of each of a plurality of slices included in the current picture, based on the obtained VCL NAL unit type information, and decoding the plurality of slices based on the determined NAL unit type and the first flag information. The current picture may comprise two or more subpictures based on at least some of the plurality of slices having different NAL unit types, and the first flag information may have a predetermined value specifying that each of the two or more subpictures is treated as one picture based on at least some of the plurality of slices having different NAL unit types.

公开(公告)号：US20240073458A1

公开(公告)日：2024-02-29

申请号：US17766954

申请日：2020-10-06

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/82 ,  H04N19/117 ,  H04N19/174 ,  H04N19/176 ,  H04N19/46 ,  H04N19/86

CPC classification number: H04N19/82 ,  H04N19/117 ,  H04N19/174 ,  H04N19/176 ,  H04N19/46 ,  H04N19/86

Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method performed by an image decoding apparatus comprises decoding a first flag specifying whether in-loop filtering is able to be performed across a boundary of a subpicture from a bitstream and performing the in-loop filtering on a boundary of a current block, based on the first flag. Based on the boundary of the current block being a boundary of a current subpicture including the current block, the in-loop filtering on the boundary of the current block is not performed, based on the first flag for the current subpicture specifying that the in-loop filtering is not able to be performed across the boundary of the current subpicture or the first flag for an adjacent subpicture adjacent to the boundary of the current block specifying that the in-loop filtering is not able to be performed across the boundary of the adjacent subpicture.

公开(公告)号：US20240031601A1

公开(公告)日：2024-01-25

申请号：US18375866

申请日：2023-10-02

Applicant: LG Electronics Inc.

Inventor： Byeongmoon JEON ,  Hendry HENDRY ,  Jaehyun LIM ,  Yongjoon JEON ,  Chulkeun KIM ,  Jungsun KIM ,  Seungwook PARK ,  Joonyoung PARK ,  Sangoh JEONG ,  Naeri PARK

IPC: H04N19/593

CPC classification number: H04N19/593

Abstract: An image decoding method according to the present invention comprises the steps of: acquiring information to form a reference picture set of a current picture by entropy decoding the received bitstream information; and performing prediction on a prediction block inside the current picture by using a reference picture list which is formed based on the reference picture set.

公开(公告)号：US20230336744A1

公开(公告)日：2023-10-19

申请号：US18213052

申请日：2023-06-22

Applicant: LG Electronics Inc.

Inventor： Hendry HENDRY

IPC: H04N19/174 ,  H04N19/70 ,  H04N19/169 ,  H04N19/44

CPC classification number: H04N19/174 ,  H04N19/188 ,  H04N19/44 ,  H04N19/70

Abstract: An image decoding method performed by a decoding apparatus according to the present document comprises the steps of: acquiring a flag indicating whether a picture header (PH) network abstraction layer (NAL) unit exists; acquiring a PH on the basis of the flag; and decoding a current picture related to the PH on the basis of the PH.

公开(公告)号：US20230328261A1

公开(公告)日：2023-10-12

申请号：US18028127

申请日：2021-09-24

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY

IPC: H04N19/174 ,  H04N19/46

CPC classification number: H04N19/174 ,  H04N19/46

Abstract: According to one embodiment of the present disclosure, provided is a media file generating method performed by a media file generating device. The method comprises the steps of: constructing subpicture tracks comprising subpicture image data; constructing a base track referencing the subpicture tracks; and generating a media file comprising the subpicture tracks and the base track, wherein a sample of the base track forms a rectangular area without holes and overlaps, the holes indicate areas that are not covered by at least one of samples of the referenced subpicture tracks, and the overlaps indicate areas that are covered more than once by the samples of the referenced subpicture tracks.

公开(公告)号：US20230319374A1

公开(公告)日：2023-10-05

申请号：US18024860

申请日：2021-12-15

Applicant: LG Electronics Inc.

Inventor： Hendry HENDRY

IPC: H04N21/845 ,  H04N21/854

CPC classification number: H04N21/8456 ,  H04N21/85406

Abstract: A method and apparatus for generating/receiving a media file including layer/sublayer information and a method of transmitting the media file are provided. The media file receiving method comprises obtaining one or more tracks and sample groups from a media file and processing video data in the media file, by reconstructing samples included in the tracks based on the sample groups. Based on that a current track of the tracks comprises a plurality of layers or sublayers and a predetermined first sample group is present for the current track, the current track may comprise layer information for the plurality of layers or sublayers.

公开(公告)号：US20230308689A1

公开(公告)日：2023-09-28

申请号：US18011054

申请日：2021-06-16

Applicant: LG Electronics Inc.

Inventor： Hendry HENDRY

IPC: H04N19/70 ,  H04N19/169 ,  H04N19/105 ,  H04N19/172 ,  H04N19/187 ,  H04N19/136

CPC classification number: H04N19/70 ,  H04N19/188 ,  H04N19/105 ,  H04N19/172 ,  H04N19/187 ,  H04N19/136

Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method according to the present disclosure may comprise obtaining a first flag specifying whether a network abstraction layer (NAL) hypothetical reference decoder (HRD) parameter is present in a bitstream and a second flag specifying whether a video coding layer (VCL) HRD parameter is present in the bitstream, obtaining a third flag specifying whether a temporal distance between output times of consecutive pictures in the bitstream has a fixed value, deriving output times of the pictures in the bitstream, based on at least one of the first flag, the second flag or the third flag, and processing the pictures in the bitstream based on the derived output times. Based on the first flag having a second value specifying that the NAL HRD parameter is not present in the bitstream and the second flag having a second value specifying that the VCL HRD parameter is not present in the bitstream, it may be constrained that the third flag has a first value specifying that the temporal distance between the output times of the consecutive pictures in the bitstream has a fixed value.

公开(公告)号：US20230308656A1

公开(公告)日：2023-09-28

申请号：US18201977

申请日：2023-05-25

Applicant: LG Electronics Inc.

Inventor： Jaehyun LIM ,  Byeongmoon JEON ,  Yongjoon JEON ,  Seungwook PARK ,  Jungsun KIM ,  Joonyoung PARK ,  Hendry HENDRY ,  Naeri PARK ,  Chulkeun KIM

IPC: H04N19/136 ,  H04N19/50 ,  H04N19/96 ,  H04N19/91 ,  H04N19/44 ,  H04N19/174

CPC classification number: H04N19/136 ,  H04N19/50 ,  H04N19/96 ,  H04N19/91 ,  H04N19/44 ,  H04N19/174 ,  H04N19/176

Abstract: The present invention relates to an entropy decoding method which includes: generating context related to a bin that forms a codeword of a syntax element; and performing arithmetic decoding of the bin based on the context.