公开(公告)号：US12231637B2

公开(公告)日：2025-02-18

申请号：US17801159

申请日：2021-02-25

Applicant: LG ELECTRONICS INC.

Inventor： Chul Keun Kim ,  Eunyong Son ,  Yongjoon Jeon

IPC: H04N19/124 ,  H04N19/169

Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method may comprise obtaining, from a bitstream, a feature set extracted from an input image using an artificial neural network-based feature extraction method, first information on importance of each of a plurality of channels included in the feature set and second information on a quantization method of the feature set, decoding the feature set, the first information and the second information, and dequantizing the decoded feature set based on the decoded first information and the decoded second information. The second information may comprise the number of quantization bits of each of the plurality of channels, and the number of quantization bits may be determined based on the importance of each of the plurality of channels.

公开(公告)号：US12069283B2

公开(公告)日：2024-08-20

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 ,  H04N19/157 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/463 ,  H04N19/523 ,  H04N19/58 ,  H04N19/587 ,  H04N19/70 ,  H04N19/513 ,  H04N19/573

CPC classification number: H04N19/44 ,  H04N19/105 ,  H04N19/157 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/463 ,  H04N19/523 ,  H04N19/58 ,  H04N19/587 ,  H04N19/70 ,  H04N19/513 ,  H04N19/573

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：US11924441B2

公开(公告)日：2024-03-05

申请号：US18119572

申请日：2023-03-09

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 ,  H04N19/105 ,  H04N19/11 ,  H04N19/176 ,  H04N19/44 ,  H04N19/593 ,  H04N19/96

CPC classification number: H04N19/159 ,  H04N19/105 ,  H04N19/11 ,  H04N19/176 ,  H04N19/44 ,  H04N19/593 ,  H04N19/96

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：US11909981B2

公开(公告)日：2024-02-20

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: H04N19/122 ,  H04N19/136 ,  H04N19/50 ,  H04N19/96 ,  H04N19/91 ,  H04N19/44 ,  H04N19/174 ,  H04N19/176 ,  H04N19/13

CPC classification number: H04N19/136 ,  H04N19/174 ,  H04N19/44 ,  H04N19/50 ,  H04N19/91 ,  H04N19/96 ,  H04N19/13 ,  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.

公开(公告)号：US11838519B2

公开(公告)日：2023-12-05

申请号：US17799154

申请日：2021-02-26

Applicant: LG ELECTRONICS INC.

Inventor： Chul Keun Kim ,  Eunyong Son ,  Yongjoon Jeon

IPC: H04N19/167 ,  H04N19/17 ,  H04N19/169 ,  H04N19/60

CPC classification number: H04N19/167 ,  H04N19/17 ,  H04N19/188 ,  H04N19/60

Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method comprises obtaining, from a bitstream, encoded data of feature information generated by applying an artificial neural network-based feature extraction method to an image, reconstructing feature information by decoding the encoded data of the feature information, and generating analysis data of the image based on the feature information.

公开(公告)号：US20230388528A1

公开(公告)日：2023-11-30

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 ,  H04N19/174 ,  H04N19/119 ,  H04N19/70

CPC classification number: H04N19/436 ,  H04N19/174 ,  H04N19/119 ,  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：US11729420B2

公开(公告)日：2023-08-15

申请号：US17577830

申请日：2022-01-18

Applicant: LG Electronics Inc.

Inventor： Yongjoon Jeon ,  Seungwook Park ,  Jaehyun Lim ,  Jungsun Kim ,  Joonyoung Park ,  Younghee Choi ,  Jaewon Sung ,  Byeongmoon Jeon

IPC: H04N19/593 ,  H04N19/61 ,  H04N19/91 ,  H04N19/182 ,  H04N19/80 ,  H04N19/85 ,  H04N19/11 ,  H04N19/117 ,  H04N19/176

CPC classification number: H04N19/593 ,  H04N19/11 ,  H04N19/117 ,  H04N19/176 ,  H04N19/182 ,  H04N19/61 ,  H04N19/80 ,  H04N19/85 ,  H04N19/91

Abstract: Disclosed are an intra-prediction method using filtering and an apparatus using the method. An image-decoding method comprises: a step of filtering an n upper reference pixel of a block to be predicted and neighboring pixels of the n upper reference pixel so as to obtain the filtered n upper reference pixel; and a step of filtering an n left reference pixel of a block to be predicted and neighboring pixels of the n left reference pixel so as to obtain the filtered n left reference pixel. According to the present invention, intra-prediction may be efficiently performed to improve image-encoding/decoding efficiency.

公开(公告)号：US20230232018A1

公开(公告)日：2023-07-20

申请号：US18089429

申请日：2022-12-27

Applicant: LG ELECTRONICS INC.

Inventor： Jin Heo ,  Yongjoon Jeon ,  Sunmi Yoo ,  Eunyong Son ,  Junghak Nam

IPC: H04N19/159 ,  H04N19/176 ,  H04N19/107 ,  H04N19/119 ,  H04N19/593

CPC classification number: H04N19/159 ,  H04N19/176 ,  H04N19/107 ,  H04N19/119 ,  H04N19/593

Abstract: In the present invention, a method for processing an image on the basis of an intra prediction mode and an apparatus therefor are disclosed. Particularly, the method for processing an image on the basis of an intra prediction mode may comprise the steps of: partitioning a block to be processed, on the basis of an intra prediction mode of the block to be processed; and performing intra prediction for the split block to be processed, wherein the direction in which the block to be processed is split is perpendicular to the prediction direction of the intra prediction mode of the block to be processed.

公开(公告)号：US11671630B2

公开(公告)日：2023-06-06

申请号：US17862673

申请日：2022-07-12

Applicant: LG Electronics Inc.

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

IPC: H04N19/80 ,  H04N19/117 ,  H04N19/13 ,  H04N19/70 ,  H04N19/61 ,  H04N19/186 ,  H04N19/82 ,  H04N19/44 ,  H04N19/50 ,  H04N19/132 ,  H04N19/126 ,  H04N19/98

CPC classification number: H04N19/80 ,  H04N19/117 ,  H04N19/13 ,  H04N19/132 ,  H04N19/186 ,  H04N19/44 ,  H04N19/50 ,  H04N19/61 ,  H04N19/70 ,  H04N19/82 ,  H04N19/126 ,  H04N19/98

Abstract: The present invention relates to a method for encoding and decoding image information and to an apparatus using same, and the method for encoding the image information, according to the present invention, comprises the steps of: generating a recovery block; applying a deblocking filter to the recovery block; applying a sample adaptive offset (SAO) to the recovery block to which the deblocking filter is applied; and transmitting the image information including information on the SAO which is applied, wherein in the step of transmitting, information for specifying bands that cover a scope of a pixel value, to which a band off set is applied, is transmitted when the band offset is applied during the step of applying the SAO.

公开(公告)号：US11570474B2

公开(公告)日：2023-01-31

申请号：US17330968

申请日：2021-05-26

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 ,  H04N19/176 ,  H04N19/182

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.