公开(公告)号：US20250168413A1

公开(公告)日：2025-05-22

申请号：US19030756

申请日：2025-01-17

Applicant: LG ELECTRONICS INC.

Inventor： Jae Hyun Lim ,  Seung Wook Park ,  Yong Joon Jeon ,  Chul Keun Kim ,  Young Hee Choi ,  Jung Sun Kim ,  Nae Ri Park ,  Hendry Hendry ,  Byeong Moon Jeon ,  Joon Young Park

IPC: H04N19/91 ,  H04N19/13 ,  H04N19/146 ,  H04N19/154 ,  H04N19/159 ,  H04N19/174 ,  H04N19/184 ,  H04N19/463 ,  H04N19/52 ,  H04N19/593 ,  H04N19/70

Abstract: The present invention relates to an entropy decoding method and to a decoding apparatus using same. The entropy decoding method according to the present invention comprises: a step of decoding a bin of a syntax element; and a step of acquiring information on the syntax element based on the decoded bin. In the step of decoding the bin, context-based decoding or bypass decoding is performed for each bin of the syntax element.

公开(公告)号：US11792419B2

公开(公告)日：2023-10-17

申请号：US17677410

申请日：2022-02-22

Applicant: LG Electronics Inc.

Inventor： Nae Ri Park ,  Jung Hak Nam ,  Hyeong Moon Jang

IPC: H04N19/46 ,  H04N19/105 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/70

CPC classification number: H04N19/46 ,  H04N19/105 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/70

Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method according to the present disclosure is performed by an image decoding apparatus. The image decoding method comprises deriving a first flag specifying whether to perform weighted prediction on a current block and a weight index BcwIdx of bi-prediction with CU-level weight (BCW) for the current block, determining whether to perform default weighted prediction or explicit weighted prediction on the current block based on the first flag and BcwIdx, and generating a prediction block for the current block by performing the determined method.

公开(公告)号：US11616989B2

公开(公告)日：2023-03-28

申请号：US17074319

申请日：2020-10-19

Applicant: LG ELECTRONICS INC.

Inventor： Jae Hyun Lim ,  Seung Wook Park ,  Yong Joon Jeon ,  Chul Keun Kim ,  Young Hee Choi ,  Jung Sun Kim ,  Nae Ri Park ,  Hendry Hendry ,  Byeong Moon Jeon ,  Joon Young Park

IPC: H04N19/13 ,  H04N19/91 ,  H04N19/146 ,  H04N19/154 ,  H04N19/159 ,  H04N19/593 ,  H04N19/463 ,  H04N19/184 ,  H04N19/52 ,  H04N19/70 ,  H04N19/174

Abstract: The present invention relates to an entropy encoding method, an entropy decoding method and to an apparatus using same. The entropy decoding method includes: a step of decoding a bin of a syntax element; and a step of acquiring information on the syntax element based on the decoded bin. In the step of decoding the bin, context-based decoding or bypass decoding is performed for each bin of the syntax element.

公开(公告)号：US12278972B2

公开(公告)日：2025-04-15

申请号：US17797953

申请日：2021-02-15

Applicant: LG ELECTRONICS INC.

Inventor： Nae Ri Park ,  Jung Hak Nam ,  Hyeong Moon Jang

IPC: H04N19/174 ,  H04N19/117 ,  H04N19/119 ,  H04N19/172 ,  H04N19/46 ,  H04N19/70 ,  H04N19/80 ,  H04N19/85 ,  H04N19/86

Abstract: An image coding/decoding method and device are provided. The image decoding method carried out by the image decoding device, according to the present disclosure, may comprise the steps of: determining the number of tiles in a current picture on the basis that the segmentation of the current picture is not restricted; on the basis that the number of tiles in the current picture is a plurality, acquiring from a bitstream, a first flag representing whether tile boundary filtering is available; and, on the basis of the value of the first flag, determining whether to carry out filtering for the boundaries of the tiles belonging to the current picture.

公开(公告)号：US11589053B2

公开(公告)日：2023-02-21

申请号：US17683203

申请日：2022-02-28

Applicant: LG ELECTRONICS INC.

Inventor： Nae Ri Park ,  Seung Hwan Kim ,  Jung Hak Nam ,  Hyeong Moon Jang

IPC: H04N19/105 ,  H04N19/132 ,  H04N19/137 ,  H04N19/176

Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method according to the present disclosure is performed by an image decoding apparatus. The image decoding method may comprise deriving a prediction sample of a current block based on motion information of the current block, determining whether prediction refinement with optical flow (PROF) applies to the current block, deriving, based on that the PROF applies to the current block, a difference motion vector for each sample position in the current block, deriving a gradient for each sample position in the current block, deriving a PROF offset based on the difference motion vector and the gradient, and deriving a refined prediction sample for the current block based on the PROF offset.

公开(公告)号：US20220191472A1

公开(公告)日：2022-06-16

申请号：US17566455

申请日：2021-12-30

Applicant: LG ELECTRONICS INC.

Inventor： Nae Ri Park ,  Jung Hak Nam ,  Hyeong Moon Jang

IPC: H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/137 ,  H04N19/167 ,  H04N19/577

Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method according to the present disclosure is performed by an image decoding apparatus. The image decoding method comprises reconstructing an inter prediction mode of a current block, deriving an affine merge candidate based on neighboring blocks of the current block, based on the inter prediction mode of the current block being an affine merge mode, deriving motion information of the current block based on motion information of the affine merge candidate, generating a prediction block of the current block by performing inter prediction on the current block based on the motion information of the current block, and reconstructing the current block based on the prediction block. The motion information may comprise a weight index for bi-prediction.

公开(公告)号：US09420313B2

公开(公告)日：2016-08-16

申请号：US14673190

申请日：2015-03-30

Applicant: LG ELECTRONICS INC.

Inventor： Jae Hyun Lim ,  Seung Wook Park ,  Yong Joon Jeon ,  Chul Keun Kim ,  Young Hee Choi ,  Jung Sun Kim ,  Nae Ri Park ,  Hendry Hendry ,  Byeong Moon Jeon ,  Joon Young Park

IPC: H04N19/13 ,  H04N19/91 ,  H04N19/146 ,  H04N19/154 ,  H04N19/52 ,  H04N19/70

CPC classification number: H04N19/91 ,  H04N19/13 ,  H04N19/146 ,  H04N19/154 ,  H04N19/159 ,  H04N19/174 ,  H04N19/184 ,  H04N19/463 ,  H04N19/52 ,  H04N19/593 ,  H04N19/70

Abstract: The present invention relates to an entropy decoding method and to a decoding apparatus using same. The entropy decoding method according to the present invention comprises: a step of decoding a bin of a syntax element; and a step of acquiring information on the syntax element based on the decoded bin. In the step of decoding the bin, context-based decoding or bypass decoding is performed for each bin of the syntax element.

Abstract translation: 本发明涉及一种熵解码方法及其使用的解码装置。 根据本发明的熵解码方法包括：对语法元素的bin进行解码的步骤; 以及基于解码的bin来获取关于语法元素的信息的步骤。 在对bin进行解码的步骤中，对语法元素的每个bin执行基于上下文的解码或旁路解码。

公开(公告)号：US12184835B2

公开(公告)日：2024-12-31

申请号：US17564640

申请日：2021-12-29

Applicant: LG Electronics Inc.

Inventor： Nae Ri Park ,  Jung Hak Nam ,  Hyeong Moon Jang

IPC: H04N19/00 ,  H04N19/105 ,  H04N19/137 ,  H04N19/159 ,  H04N19/176

Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method according to the present disclosure may comprise constructing an affine merge candidate list for a current block, based on an inter prediction mode of the current block being an affine merge mode, selecting one affine merge candidate from the affine merge candidate list, deriving motion information of the current block based on motion information of the selected affine merge candidate, generating a prediction block of the current block based on the motion information of the current block, and reconstructing the current block based on the prediction block of the current block. The constructing the affine merge candidate list may comprise deriving a constructed affine merge candidate, and the deriving the constructed affine merge candidate may comprise deriving a weight index for bi-prediction of the constructed affine merge candidate.

公开(公告)号：US20220368891A1

公开(公告)日：2022-11-17

申请号：US17860547

申请日：2022-07-08

Applicant: LG ELECTRONICS INC.

Inventor： Nae Ri Park ,  Jung Hak Nam ,  Hyeong Moon Jang

IPC: H04N19/105 ,  H04N19/137 ,  H04N19/176 ,  H04N19/46

Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method according to the present disclosure is performed by an image decoding apparatus. The image decoding method comprises constructing a merge candidate list for a current block based on a prediction mode of the current block, deriving motion information of the current block based on the merge candidate list, and generating a prediction block of the current block based on the motion information. Information on a maximum number of merge candidates included in the merge candidate list may be obtained through a sequence parameter set, and, based on the prediction mode being a subblock-based merge mode, the maximum number of merge candidates may be determined based on whether an affine mode is available for the current block.

公开(公告)号：US10015523B2

公开(公告)日：2018-07-03

申请号：US15151257

申请日：2016-05-10

Applicant: LG ELECTRONICS INC.

Inventor： Jae Hyun Lim ,  Seung Wook Park ,  Yong Joon Jeon ,  Chul Keun Kim ,  Young Hee Choi ,  Jung Sun Kim ,  Nae Ri Park ,  Hendry Hendry ,  Byeong Moon Jeon ,  Joon Young Park

IPC: H04N19/91 ,  H04N19/13 ,  H04N19/146 ,  H04N19/154 ,  H04N19/52 ,  H04N19/70 ,  H04N19/159 ,  H04N19/593 ,  H04N19/463 ,  H04N19/184 ,  H04N19/174

CPC classification number: H04N19/91 ,  H04N19/13 ,  H04N19/146 ,  H04N19/154 ,  H04N19/159 ,  H04N19/174 ,  H04N19/184 ,  H04N19/463 ,  H04N19/52 ,  H04N19/593 ,  H04N19/70

Abstract: The present invention relates to an entropy decoding method and to a decoding apparatus using same. The entropy decoding method according to the present invention comprises: a step of decoding a bin of a syntax element; and a step of acquiring information on the syntax element based on the decoded bin. In the step of decoding the bin, context-based decoding or bypass decoding is performed for each bin of the syntax element.