公开(公告)号：US20210352281A1

公开(公告)日：2021-11-11

申请号：US17369706

申请日：2021-07-07

Applicant: LG ELECTRONICS INC.

Inventor： Jin HEO ,  Sunmi YOO ,  Ling LI ,  Jangwon CHOI ,  Jungah CHOI

IPC: H04N19/11 ,  H04N19/176 ,  H04N19/593 ,  H04N19/132 ,  H04N19/105

Abstract: An image decoding method according to the present document derives a left mode, which is a candidate intra prediction mode for a left peripheral block of a current block, derives an upper mode, which is a candidate intra prediction mode for an upper peripheral block of the current block, constructs an MPM list on the basis of the left mode and the upper mode, derives an intra prediction mode of the current block on the basis of the MPM list, generates prediction samples of the current block on the basis of the intra prediction mode, generates a restoration picture of the current block on the basis of the prediction samples, and derives the left mode or the upper mode as one from among candidate intra prediction modes of the MPM list, on the basis of when the left mode and the upper mode are not the same and the left mode and the upper mode are respectively a planar mode and a DC mode.

公开(公告)号：US20210136410A1

公开(公告)日：2021-05-06

申请号：US17147125

申请日：2021-01-12

Applicant: LG ELECTRONICS INC.

Inventor： Jin HEO

IPC: H04N19/593 ,  H04N19/132 ,  H04N19/176 ,  H04N19/59

Abstract: An image decoding method performed by a decoding apparatus according to the present invention comprises: a step of deriving an intra prediction mode for a current block; a step of deriving upper neighboring samples of a plurality of rows for the current block, and left neighboring samples of a plurality of columns; a step of deriving one row of upper reference samples on the basis of the upper neighboring samples; a step of deriving one column of left reference samples on the basis of the left neighboring samples; and a step of generating a prediction sample for the current block by using at least one of the upper reference samples and the left reference samples in accordance with the intra prediction mode.

公开(公告)号：US20200244966A1

公开(公告)日：2020-07-30

申请号：US16853484

申请日：2020-04-20

Applicant: LG ELECTRONICS INC.

Inventor： Sunmi YOO ,  Jangwon CHOI ,  Jin HEO

IPC: H04N19/132 ,  H04N19/122 ,  H04N19/176 ,  H04N19/61

Abstract: A method for decoding an image by a decoding apparatus according to the present invention comprises the steps of: deriving predicted samples by performing prediction on a current block; determining whether the current block is to be divided, on the basis of a size and a maximum transform size of the current block; when the current block is determined to be divided, dividing the current block into transform blocks; deriving transform coefficients of the transform blocks; deriving residual samples by performing an inverse transform procedure for the transform coefficients; and generating a reconstructed picture on the basis of the residual samples and the predicted samples, wherein, when the size of the current block is larger than the maximum transform size, the current block is determined to be divided.

公开(公告)号：US20200177882A1

公开(公告)日：2020-06-04

申请号：US16709471

申请日：2019-12-10

Applicant: LG ELECTRONICS INC.

Inventor： Sunmi YOO ,  Jin HEO ,  Ling LI ,  Jangwon CHOI ,  Jungah CHOI ,  Seunghwan KIM

IPC: H04N19/13 ,  H04N19/176 ,  H04N19/136 ,  H04N19/60 ,  H04N19/124

Abstract: An image decoding method includes receiving residual information including first size related information for a first residual coefficient and second size related information for a second residual coefficient, setting a Rice parameter of the first size related information and the second size related information as a specific value, deriving available binary values based on the Rice parameter, deriving binary values of the first size related information and the second size related information by decoding the first size related information and the second size related information, deriving values of the first size related information and the second size related information by comparing the binary values and the available binary values, deriving the first residual coefficient and the second residual coefficient based on the values, and reconstructing a current picture based on the first residual coefficient and the second residual coefficient.

公开(公告)号：US20200154103A1

公开(公告)日：2020-05-14

申请号：US16628608

申请日：2018-07-04

Applicant: LG Electronics Inc.

Inventor： Jin HEO ,  Ling LI

IPC: H04N19/11 ,  H04N19/105 ,  H04N19/176 ,  H04N19/59

Abstract: Disclosed herein are an intra prediction mode based image processing method and an apparatus therefor. Specifically, a method for processing an image based on an intra prediction mode may include: deriving an intra prediction mode of a current block; generating a bottom right reference sample adjacent to a bottom right side of the current block; generating a right reference sample or a lower reference sample by using the bottom right reference sample generating a first prediction sample and a second prediction sample of the current sample in the current block based on a prediction direction of the intra prediction mode; and generating a final prediction sample of the current sample by interpolating the first prediction sample and the second prediction sample.

公开(公告)号：US20180063552A1

公开(公告)日：2018-03-01

申请号：US15550331

申请日：2016-02-15

Applicant: LG Electronics Inc.

Inventor： Chulkeun KIM ,  Jin HEO ,  Sehoon YEA

IPC: H04N19/82 ,  H04N19/159 ,  H04N19/61 ,  H04N19/107

CPC classification number: H04N19/82 ,  H04N19/107 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176 ,  H04N19/48 ,  H04N19/593 ,  H04N19/61 ,  H04N19/91

Abstract: Disclosed is a method of decoding a video signal. The method includes extracting an intra-prediction mode of a current block from a video signal, generating a prediction block according to the intra-prediction mode, performing a transform on the prediction block, performing a filtering on the transformed prediction block using a spatial correlation coefficient, and generating a reconstruction block based on the filtered prediction block and a residual block, wherein the spatial correlation coefficient is a value determined based on a direction of the intra-prediction mode.

公开(公告)号：US20160261888A1

公开(公告)日：2016-09-08

申请号：US15028905

申请日：2014-10-20

Applicant: LG ELECTRONICS INC.

Inventor： Junghak NAM ,  Jin HEO ,  Taesup KIM ,  Jungdong SEO ,  Sehoon YEA

IPC: H04N19/597 ,  H04N19/70 ,  H04N19/44

CPC classification number: H04N19/597 ,  H04N19/44 ,  H04N19/52 ,  H04N19/70

Abstract: The present invention relates to a video decoding apparatus and a method for decoding a multi-view video, and the video decoding apparatus according to the present invention comprises: an entropy-decoding unit for entropy-decoding a bitstream and outputting video information required for decoding a current block in a depth picture; a memory for saving pictures referenced when decoding the current block; and a prediction unit for inducing a prediction sample of the current block, by using motion information of a texture picture within the same view as motion information of the current block.

Abstract translation: 视频解码装置及其解码方法技术领域本发明涉及一种视频解码装置和多视点视频解码方法，本发明的视频解码装置包括：熵解码单元，用于对比特流进行熵解码，并输出解码所需的视频信息 深度图片中的当前块; 用于保存解码当前块时参考的图像的存储器; 以及预测单元，用于通过使用与当前块的运动信息相同的视图内的纹理图像的运动信息来诱导当前块的预测样本。

公开(公告)号：US20160073131A1

公开(公告)日：2016-03-10

申请号：US14758866

申请日：2014-01-02

Applicant: LG ELECTRONICS INC.

Inventor： Jin HEO ,  Jiwook JUNG ,  Sehoon YEA ,  Moonmo KOO ,  Taesup KIM ,  Jaewon SUNG ,  Eunyong SON

IPC: H04N19/597 ,  H04N13/00 ,  H04N19/44

CPC classification number: H04N19/597 ,  H04N13/128 ,  H04N13/161 ,  H04N19/44 ,  H04N2213/003

Abstract: The present invention relates to a video signal processing method and device and is capable of acquiring differential depth index information on the basis of a predetermined binarization method, acquiring a differential depth value by using the differential depth index information, acquiring the depth value of a current depth block by using the differential depth value, and decoding the current depth block by using the depth value of the current depth block. The present invention can increase encoding efficiency.

Abstract translation: 视频信号处理方法和装置技术领域本发明涉及视频信号处理方法和装置，并且能够基于预定的二值化方法获取差分深度索引信息，通过使用差分深度索引信息获取差分深度值，获取当前的深度值 通过使用差分深度值进行深度块，并且通过使用当前深度块的深度值来解码当前深度块。 本发明可以提高编码效率。

公开(公告)号：US20160050438A1

公开(公告)日：2016-02-18

申请号：US14782440

申请日：2014-04-11

Applicant: LG ELECTRONICS INC.

Inventor： Jin HEO ,  Junghak NAM ,  Jiwook JUNG ,  Sehoon YEA ,  Eunyong SON

IPC: H04N19/597 ,  H04N19/44 ,  H04N19/503 ,  H04N19/176 ,  H04N19/182

CPC classification number: H04N19/597 ,  H04N19/176 ,  H04N19/182 ,  H04N19/44 ,  H04N19/503 ,  H04N19/593

Abstract: The present invention relates to a video signal processing method and device capable of: obtaining an intra-prediction mode for a current depth block; determining a reference neighboring pixel region adjacent to the current depth block by using the intra-prediction mode; determining a first reference neighboring pixel region and a second reference neighboring pixel region; determining a first current depth block region and a second current depth block region comprised in the current depth block; obtaining a first prediction value for the first current depth block region by using the representative value of the first reference neighboring pixel region; and obtaining a second prediction value for the second current depth block region by using the representative value of the second reference neighboring pixel region.

Abstract translation: 本发明涉及一种视频信号处理方法和装置，其能够：获得当前深度块的帧内预测模式; 通过使用帧内预测模式确定与当前深度块相邻的参考相邻像素区域; 确定第一参考相邻像素区域和第二参考相邻像素区域; 确定包括在当前深度块中的第一当前深度块区域和第二当前深度块区域; 通过使用第一参考相邻像素区域的代表值来获得第一当前深度块区域的第一预测值; 以及通过使用第二参考相邻像素区域的代表值来获得第二当前深度块区域的第二预测值。

公开(公告)号：US20250113021A1

公开(公告)日：2025-04-03

申请号：US18940151

申请日：2024-11-07

Applicant: LG Electronics Inc.

Inventor： Ling LI ,  Jaehyun LIM ,  Jin HEO ,  Jangwon CHOI ,  Seunghwan KIM

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

Abstract: A method for decoding an image performed by a decoding apparatus according to the present disclosure comprises the steps of: receiving intra prediction information including at least one of MPM flag information indicating whether to derive an intra prediction mode for a current block on the basis of MPM candidates for the current block, or PLANAR flag information indicating whether to determine the intra prediction mode for the current block as a PLANAR mode; deriving the intra prediction mode for the current block on the basis of the MPM flag information and the PLANAR flag information; deriving a predicted block for the current block on the basis of the intra prediction mode for the current block; and generating a reconstructed picture on the basis of the predicted block.