公开(公告)号：US20250008110A1

公开(公告)日：2025-01-02

申请号：US18705468

申请日：2022-11-15

Applicant: LG ELECTRONICS INC.

Inventor： Donggyu GWAK ,  Jaehyun LIM ,  Chulkeun KIM

IPC: H04N19/157 ,  H04N19/105 ,  H04N19/176 ,  H04N19/61

Abstract: Provided are a feature encoding/decoding method and device, and a computer-readable recording medium generated by the feature encoding method. A feature decoding method, according to the present disclosure, is a feature decoding method performed by a feature decoding device and may comprise the steps of: dividing a current feature channel into feature blocks on the basis of information on division of the current feature channel; and reconstructing a current feature block on the basis of first transform information which is information on a transform of the current feature block from among the feature blocks.

公开(公告)号：US20240414342A1

公开(公告)日：2024-12-12

申请号：US18703177

申请日：2022-10-28

Applicant: LG Electronics Inc.

Inventor： Chulkeun KIM ,  Hyeong Moon JANG

IPC: H04N19/13 ,  H04N19/91

Abstract: Herein provided are a feature encoding/decoding method, a recording medium storing a bitstream generated by the feature encoding method and a method of transmitting the bitstream. The feature decoding method may comprise obtaining channel information of a current coding unit, determining a context model for the current coding unit based on the channel information; and decoding the current coding unit based on the context model. The channel information may comprise channel grouping information of a feature map including the current coding unit, and the context model is determined based on the channel grouping information.

公开(公告)号：US20240406372A1

公开(公告)日：2024-12-05

申请号：US18700423

申请日：2022-11-01

Applicant: LG Electronics Inc.

Inventor： Hyeong Moon JANG ,  Chulkeun KIM

IPC: H04N19/103 ,  H04N19/124 ,  H04N19/132 ,  H04N19/136 ,  H04N19/176 ,  H04N19/184

Abstract: Provided are a feature encoding/decoding method and device, a recording medium in which a bitstream generated by the feature encoding method is stored, and a method for transmitting the bitstream. A feature decoding method according to the present disclosure comprises the steps of: determining an encoding structure of a current channel in a feature map; acquiring, on the basis of the encoding structure, a current block by splitting the current channel; and reconstructing the current block, wherein the encoding structure of the current channel can be determined on the basis of whether an inter-channel reference referring to an encoding structure of a channel, having been reconstructed for the current channel, is applied.

公开(公告)号：US20240296649A1

公开(公告)日：2024-09-05

申请号：US18571028

申请日：2022-06-15

Applicant: LG Electronics Inc.

Inventor： Chulkeun KIM ,  Jaehyun LIM

IPC: G06V10/42 ,  G06V10/25

CPC classification number: G06V10/42 ,  G06V10/25

Abstract: A method and apparatus for encoding/decoding feature information of an image and a computer-readable recording medium generated by the encoding method are provided. The encoding method comprises obtaining at least one feature map for a first image, determining at least one feature transform matrix for the feature map, and transforming a plurality of features included in the feature map based on the determined feature transform matrix. The at least one feature transform matrix may comprise a global feature transform matrix commonly applied to two or more features, and the global feature transform matrix may be generated in advance based on a predetermined feature data set obtained from a second image.

公开(公告)号：US20230353779A1

公开(公告)日：2023-11-02

申请号：US18218390

申请日：2023-07-05

Applicant: LG Electronics Inc.

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

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

CPC classification number: H04N19/577 ,  H04N19/503 ,  H04N19/46 ,  H04N19/70 ,  H04N19/423 ,  H04N19/573 ,  H04N19/44

Abstract: 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：US20230353734A1

公开(公告)日：2023-11-02

申请号：US18219491

申请日：2023-07-07

Applicant: LG Electronics Inc.

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

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

CPC classification number: H04N19/117 ,  H04N19/159 ,  H04N19/176 ,  H04N19/136 ,  H04N19/82 ,  H04N19/86

Abstract: 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：US20230217043A1

公开(公告)日：2023-07-06

申请号：US18092040

申请日：2022-12-30

Applicant: LG Electronics Inc.

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

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

CPC classification number: H04N19/61 ,  H04N19/13 ,  H04N19/82 ,  H04N19/86 ,  H04N19/124 ,  H04N19/176

Abstract: 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：US20220295078A1

公开(公告)日：2022-09-15

申请号：US17829548

申请日：2022-06-01

Applicant: LG Electronics Inc.

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

IPC: H04N19/159 ,  H04N19/176 ,  H04N19/593 ,  H04N19/11 ,  H04N19/44

Abstract: A method for decoding an image according to the present invention comprises the steps of: receiving and decoding MPM index information for indicating an MPM candidate which is to be used as an intra prediction mode of a current block; generating an MPM candidate list containing a plurality of MPM candidates for the current block; determining the MPM candidate indicated by the decoded MPM index information as the intra prediction mode of the current block, among the plurality of the MPM candidates which constitute the MPM candidate list; and generating a prediction block corresponding to the current block by performing intra prediction for the current block based on the determined intra prediction mode.

公开(公告)号：US20220141478A1

公开(公告)日：2022-05-05

申请号：US17578182

申请日：2022-01-18

Applicant: LG Electronics Inc.

Inventor： Hendry HENDRY ,  Yongjoon JEON ,  Chulkeun KIM ,  Jungsun KIM ,  Byeongmoon JEON ,  Joonyoung PARK

IPC: H04N19/44 ,  H04N19/105 ,  H04N19/70 ,  H04N19/172 ,  H04N19/463 ,  H04N19/174 ,  H04N19/157 ,  H04N19/176 ,  H04N19/587 ,  H04N19/523 ,  H04N19/58

Abstract: Disclosed is a video decoding method that decodes a bitstream, the method including receiving a picture parameter set (PPS) comprising at least one of first information indicating whether the same reference picture list is applied to slices comprised in a picture and second information indicating whether additional information on modification of the reference picture list is present, and deriving a construction of the reference picture list based on the PPS. Accordingly, there are provided a method and an apparatus for signaling by a picture whether the construction of the reference picture list is modified when constructing the reference picture list.

公开(公告)号：US20220132155A1

公开(公告)日：2022-04-28

申请号：US17572289

申请日：2022-01-10

Applicant: LG Electronics Inc.

Inventor： Jungsun KIM ,  Joonyoung PARK ,  Chulkeun KIM ,  Hendry HENDRY ,  Byeongmoon JEON

IPC: H04N19/44 ,  H04N19/463 ,  H04N19/91 ,  H04N19/124 ,  H04N19/176 ,  H04N19/184 ,  H04N19/503

Abstract: A method or coding image information, according to the present invention, comprises the steps of: binarizing according to different techniques, index values of forward prediction, backward prediction, and bidirectional prediction, depending on whether the bidirectional prediction is applied when inter-predicting a current block; and entropy coding a binarized codeword, wherein whether to apply the bidirectional prediction when inter-predicting the current block can be determined on the basis of the size of the current block. As a result, provided are a method for binarizing an inter-prediction direction of a prediction unit having a specific size, and an apparatus using same.