公开(公告)号：US20230353779A1

公开(公告)日：2023-11-02

申请号：US18218390

申请日：2023-07-05

申请人： LG Electronics Inc.

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

IPC分类号： H04N19/577 ,  H04N19/503 ,  H04N19/46 ,  H04N19/70 ,  H04N19/423 ,  H04N19/573 ,  H04N19/44

CPC分类号： H04N19/577 ,  H04N19/503 ,  H04N19/46 ,  H04N19/70 ,  H04N19/423 ,  H04N19/573 ,  H04N19/44

摘要： The present invention relates to a method for signaling image information and to a decoding method using same. The method for signaling image information according to the present invention comprises: a step of performing inter-prediction for a current picture; and a step of signaling information including the result of said inter-prediction and reference picture information indicating reference pictures usable in said inter prediction, wherein said reference picture information contains pieces of picture order count (POC) information of said usable reference pictures. The POC information of said usable reference pictures in said reference picture information is configured such that POCs for the pictures existing before said current picture in terms of a POC sequence are located at the front, and POCs for the pictures existing after said current picture in terms of a POC sequence are located following the POCs located at the front.

公开(公告)号：US20230353749A1

公开(公告)日：2023-11-02

申请号：US17782933

申请日：2020-12-04

申请人： LG ELECTRONICS INC.

发明人： Jung Hak NAM ,  Hendry HENDRY ,  Jaehyun LIM ,  Seung Hwan KIM

IPC分类号： H04N19/137 ,  H04N19/105 ,  H04N19/176

CPC分类号： H04N19/137 ,  H04N19/105 ,  H04N19/176

摘要： An image encoding/decoding method and apparatus are provided. The image decoding method according to the present disclosure may comprise the steps of: deriving a temporal motion vector predictor for the current block on the basis of a co-located picture for the current block; deriving a motion vector of the current block on the basis of the temporal motion vector predictor; and generating a prediction block of the current block on the basis of the motion vector, wherein the co-located picture is determined on the basis of identification information of the co-located picture, which is included in a slice header of the current slice including the current block, and when the slice header does not include identification information of the co-located picture, the co-located picture is determined on the basis of identification information of the co-located picture, which is included in a picture header of the current picture including the current block.

公开(公告)号：US20230353734A1

公开(公告)日：2023-11-02

申请号：US18219491

申请日：2023-07-07

申请人： LG Electronics Inc.

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

IPC分类号： H04N19/117 ,  H04N19/159 ,  H04N19/176 ,  H04N19/136 ,  H04N19/82 ,  H04N19/86

CPC分类号： H04N19/117 ,  H04N19/159 ,  H04N19/176 ,  H04N19/136 ,  H04N19/82 ,  H04N19/86

摘要： A deblocking filtering method, a boundary strength (bS) deriving method, and encoding/decoding method and apparatus using the methods are provided. The bS deriving method includes the steps of: deriving a boundary of a deblocking filtering unit block which is a unit block on which deblocking filtering is performed; and setting a bS for each bS setting unit block in the deblocking filtering unit block. Here, the step of setting the bS includes setting a bS value of a target boundary corresponding to the boundary of the deblocking filtering unit block as the bS setting unit block.

公开(公告)号：US20230319320A1

公开(公告)日：2023-10-05

申请号：US18205372

申请日：2023-06-02

申请人： LG ELECTRONICS INC.

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

IPC分类号： H04N19/91 ,  H04N19/436 ,  H04N21/6336 ,  H04N19/184 ,  H04N19/70 ,  H04N19/96 ,  H04N19/174 ,  H04N19/13

CPC分类号： H04N19/91 ,  H04N19/436 ,  H04N21/6336 ,  H04N19/184 ,  H04N19/70 ,  H04N19/96 ,  H04N19/174 ,  H04N19/13 ,  H04N19/124

摘要： The present invention relates to video encoding and decoding method and apparatus, and a video encoding method according to the present invention comprises the steps of: entropy-encoding quantized transform information; and transmitting the entropy-encoded information as a bitstream, wherein the bitstream includes information indicating pieces of information to be parallel decoded in byte units.

公开(公告)号：US20230291934A1

公开(公告)日：2023-09-14

申请号：US18199586

申请日：2023-05-19

申请人： LG ELECTRONICS INC.

发明人： Seethal PALURI ,  Hendry HENDRY ,  Seung Hwan KIM

IPC分类号： H04N19/70 ,  H04N19/172 ,  H04N19/187 ,  H04N19/30 ,  H04N19/423

CPC分类号： H04N19/70 ,  H04N19/172 ,  H04N19/187 ,  H04N19/30 ,  H04N19/423

摘要： An image encoding/decoding method and apparatus for signaling a VPS and a recording medium storing a bitstream are provided. An image decoding method may comprise obtaining first information indicating whether each output layer set (OLS) specified by a video parameter set (VPS) includes only one layer, obtaining second information indicating the number of decoded picture buffer (DPB) parameter syntax structures in the VPS, based on the first information, obtaining the DPB parameter syntax structures in the VPS based on the second information, and managing a DPB based on the DPB parameter syntax structures.

公开(公告)号：US20230217043A1

公开(公告)日：2023-07-06

申请号：US18092040

申请日：2022-12-30

申请人： LG Electronics Inc.

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

IPC分类号： H04N19/61 ,  H04N19/86 ,  H04N19/82 ,  H04N19/124 ,  H04N19/13

CPC分类号： H04N19/61 ,  H04N19/13 ,  H04N19/82 ,  H04N19/86 ,  H04N19/124 ,  H04N19/176

摘要： A method for image decoding, according to the present invention, includes the following steps: receiving image information including a plurality of filter coefficients; generating a restored block for a current block on the basis of the image information; and applying an adaptive loop filter to the restored block on the basis of the plurality of filter coefficients. According to the present invention, image encoding efficiency may be improved, and complexity may be reduced.

公开(公告)号：US20230156227A1

公开(公告)日：2023-05-18

申请号：US17916360

申请日：2021-03-30

申请人： LG ELECTRONICS INC.

发明人： Hendry HENDRY

IPC分类号： H04N19/65 ,  H04N19/70 ,  H04N19/46 ,  H04N19/172

CPC分类号： H04N19/65 ,  H04N19/46 ,  H04N19/70 ,  H04N19/172

摘要： According to the disclosure of the present document, a recovery point picture order count (POC) for a gradual decoding refresh (GDR) picture is derived on the basis of GDR-related information, and an output for pictures related to the GDR picture is determined on the basis of the recovery point POC. The recovery point DOC can be derived on the basis of a syntax element related to the recovery point POC.

公开(公告)号：US20230156210A1

公开(公告)日：2023-05-18

申请号：US17916227

申请日：2021-03-31

申请人： LG Electronics Inc.

发明人： Hendry HENDRY ,  Seung Hwan KIM ,  Seethal PALURI

IPC分类号： H04N19/46 ,  H04N19/172

CPC分类号： H04N19/46 ,  H04N19/172

摘要： Provided is an image encoding/decoding method and apparatus. The image decoding method may include obtaining first information on whether a current picture might be partitioned, from a bitstream, obtaining, from the bitstream, second information on the number of one or more subpictures included in the current picture based on the first information, deriving one or more subpictures, based on the second information and decoding the one or more subpictures.

公开(公告)号：US20230156201A1

公开(公告)日：2023-05-18

申请号：US17918288

申请日：2021-04-15

申请人： LG ELECTRONICS INC.

发明人： Hendry HENDRY ,  Seethal PALURI ,  Seung Hwan KIM

IPC分类号： H04N19/187 ,  H04N19/169

CPC分类号： H04N19/187 ,  H04N19/188

摘要： An image encoding/decoding method and apparatus is provided. The image decoding method comprises determining at least one layer in an output layer set (OLS), and determining a number of sublayers for the at least one layer,

公开(公告)号：US20230144793A1

公开(公告)日：2023-05-11

申请号：US17915302

申请日：2021-03-29

申请人： LG ELECTRONICS INC.

发明人： Seethal PALURI ,  Hendry HENDRY ,  Seung Hwan KIM

IPC分类号： H04N19/423 ,  H04N19/70

CPC分类号： H04N19/423 ,  H04N19/70

摘要： Disclosed herein are an image encoding and decoding method and apparatus for signaling information on the number of DPB parameters, and a recording medium storing a bitstream. An image decoding method may comprise obtaining first information indicating the number of decoded picture buffer (DPB) parameter syntax structures in a video parameter set (VPS), computing the number of DPB parameter syntax structures in the VPS based on the first information, obtaining the DPB parameter syntax structures in the VPS based on the number of DPB parameter syntax structures, and managing a DPB based on the DPB parameter syntax structures.