公开(公告)号：US20250047832A1

公开(公告)日：2025-02-06

申请号：US18923500

申请日：2024-10-22

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/102 ,  H04N19/169 ,  H04N19/70

Abstract: An image encoding/decoding method and apparatus for signaling decoded picture buffer (DPB) related information and profile tier level (PTL) related information and a method of transmitting a bitstream are provided. The image decoding method according to the present disclosure may comprise obtaining first information indicating the number of one or more decoded picture buffer (DPB) parameter syntax structures in a video parameter set (VPS), obtaining the one or more DPB parameter syntax structures from the VPS based on the first information, obtaining second information between one or more multi-layer output layer sets (OLSs) and the one or more DPB parameter syntax structures from the VPS based on the first information, selecting a DPB parameter syntax structure that applies to a current OLS based on the second information, and processing the current OLS based on the selected DPB parameter syntax structure.

公开(公告)号：US20240397051A1

公开(公告)日：2024-11-28

申请号：US18793081

申请日：2024-08-02

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Seethal PALURI ,  Seunghwan KIM

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

Abstract: In relation to an in-loop filtering procedure described in the present document, a virtual boundary is defined so as to further increase the subjective/objective visual quality of a restored picture and the in-loop filtering procedure can be applied across the virtual boundary. The virtual boundary can include, for example, a discontinuous edge such as a 360-degree image, a VR image, or picture in picture (PIP). For example, the virtual boundary can be at a predetermined appointed position, and the existence and/or the position thereof can be signaled. Embodiments of the present document present a method for efficiently signaling virtual boundary-related information.

公开(公告)号：US20240397049A1

公开(公告)日：2024-11-28

申请号：US18795642

申请日：2024-08-06

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Jungsun KIM ,  Chulkeun KIM ,  Byeongmoon JEON ,  Sangoh JEONG

IPC: H04N19/13 ,  H04N19/112 ,  H04N19/119 ,  H04N19/129 ,  H04N19/167 ,  H04N19/174 ,  H04N19/176 ,  H04N19/70 ,  H04N19/91

Abstract: The present invention relates to a video encoding method, to a video decoding method, and to an apparatus using same. The video encoding method according to the present invention comprises the steps of: setting a tile and a slice for the inputted current picture; performing encoding based on the tile and the slice; and a step of transmitting the encoded video information. The current picture may include one or more tiles and one or more slices. The largest coding units (hereinafter, referred to as LCUs) in the slice may be arranged based on a tile scan.

公开(公告)号：US20240305832A1

公开(公告)日：2024-09-12

申请号：US18669231

申请日：2024-05-20

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY

IPC: H04N19/70 ,  H04N19/169 ,  H04N19/31

CPC classification number: H04N19/70 ,  H04N19/188 ,  H04N19/31

Abstract: According to an embodiment (embodiments) of the present document, multilayer-based coding may be executed. In the multilayer-based coding, a decoded picture based on a target output layer can be output, and, for example, the target output layer can be determined on the basis of an external means or signaled information. According to an embodiment according to the present document, image information acquired from a bitstream can include a specific NAL unit for scheduling target output layer-related information.

公开(公告)号：US20240283913A1

公开(公告)日：2024-08-22

申请号：US18649043

申请日：2024-04-29

Applicant: LG Electronics Inc.

Inventor： Hendry HENDRY

IPC: H04N19/105 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46 ,  H04N19/70

CPC classification number: H04N19/105 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46 ,  H04N19/70

Abstract: An image decoding method performed by a decoding device according to the present document comprises the steps of: obtaining image information including an output layer set (OLS) decoded picture buffer (DPB) parameter index for a target OLS and DPB parameter information; deriving DPB parameter information for the target OLS on the basis of the OLS DPB parameter index; performing a picture management process on pictures of a DPB on the basis of the DPB parameter information for the target OLS; configuring a reference picture list for a current picture on the basis of the pictures of the DPB; and performing an inter prediction on a block in the current picture on the basis of the reference picture list.

公开(公告)号：US20240089506A1

公开(公告)日：2024-03-14

申请号：US18509983

申请日：2023-11-15

Applicant: LG Electronics Inc.

Inventor： Hendry HENDRY ,  Junghak NAM ,  Seunghwan KIM ,  Jaehyun LIM

IPC: H04N19/70 ,  H04N19/172 ,  H04N19/176 ,  H04N19/503 ,  H04N19/593

CPC classification number: H04N19/70 ,  H04N19/172 ,  H04N19/176 ,  H04N19/503 ,  H04N19/593

Abstract: A video decoding method performed by a video decoding apparatus, according to the present document, comprises the steps of: acquiring general constraint information from a bitstream; parsing, from the bitstream, a flag indicating whether or not the general constraint information includes information about constraints to which output layer sets conform; parsing the information about the constraints in the general constraint information on the basis of the flag; and decoding a current picture on the basis of the information about the constraints, wherein the general constraint information includes number information and alignment information about the constraints, and, within the general constraint information, the alignment information may be present after the number information.

公开(公告)号：US20240064323A1

公开(公告)日：2024-02-22

申请号：US18268929

申请日：2021-12-22

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY

IPC: H04N19/46 ,  H04N19/119

CPC classification number: H04N19/46 ,  H04N19/119

Abstract: Disclosed herein are a media file generating/receiving method and apparatus for signaling subpicture id information and a method of transmitting a media file. The media file receiving method comprises obtaining subpicture id information for the video data from the media file and processing the video data based on the obtained subpicture id information. The obtaining the subpicture id information may be performed based on first information indicating whether a value of a subpicture id continuously increases by 1.

公开(公告)号：US20240056591A1

公开(公告)日：2024-02-15

申请号：US18278113

申请日：2022-04-12

Applicant: LG Electronics Inc.

Inventor： Hendry HENDRY ,  Seunghwan KIM

IPC: H04N19/44 ,  H04N19/136 ,  H04N19/172 ,  H04N19/184 ,  H04N19/186 ,  H04N19/70

CPC classification number: H04N19/44 ,  H04N19/136 ,  H04N19/172 ,  H04N19/184 ,  H04N19/186 ,  H04N19/70

Abstract: An image decoding method performed by a decoding apparatus according to the disclosure of the present document may comprise the steps of: obtaining information related to decoder initialization from a bitstream, initializing a decoder on the basis of the information related to decoder initialization; and performing decoding after initializing the decoder, wherein the information related to decoder initialization includes one or more decoder initialization information sets, and the decoder initialization information set includes level id information and maximum value information of parameters for decoding a bitstream related to the level id information, the value of the level id information specifying a level related to the decoder initialization information set.

公开(公告)号：US20240056578A1

公开(公告)日：2024-02-15

申请号：US18267041

申请日：2021-12-14

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY

IPC: H04N19/132 ,  H04N19/172 ,  H04N19/169 ,  H04N19/30 ,  H04N19/136 ,  H04N19/46

CPC classification number: H04N19/132 ,  H04N19/172 ,  H04N19/188 ,  H04N19/30 ,  H04N19/136 ,  H04N19/46

Abstract: Disclosed herein are a method and apparatus for generating/receiving a media file supporting random access in sample units and a method of transmitting a media file. The media file receiving method may comprise obtaining one or more tracks and sample groups from the media file and processing the video data in the media file by reconstructing a sample included in the track based on the sample group. Based on that samples mapped to a stream access point sample group of a predetermined type or a random access recovery point sample group are present in the track, a current sample among the mapped samples may be constrained to include at least one intra random access point (IRAP) subpicture, and a sample belonging to the same coded layer video sequence (CLVS) as the current sample and following the current sample in decoding order may be constrained to include at least one IRAP subpicture with the same subpicture index value as the non-IRAP subpicture, based on the current sample including a non-IRAP subpicture.

公开(公告)号：US20230379481A1

公开(公告)日：2023-11-23

申请号：US18026542

申请日：2021-09-23

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY

IPC: H04N19/30 ,  H04N19/187 ,  H04N19/184

CPC classification number: H04N19/30 ,  H04N19/187 ,  H04N19/184

Abstract: A media file generating/receiving method and apparatus for signaling operating point information and output layer set information and a method of transmitting a media file are provided. A media file receiving method may comprise obtaining operating point information for the video data from the media file and processing the video data based on the obtained operating point information. The operating point information may include information on a number of operating points for the video data, and a bit length of the information on the number of operating points may be 12 bits.