公开(公告)号：US10158872B2

公开(公告)日：2018-12-18

申请号：US15892650

申请日：2018-02-09

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry ,  Seungwook Park ,  Byeongmoon Jeon ,  Joonyoung Park ,  Jungsun Kim ,  Sangoh Jeong ,  Chulkeun Kim

IPC: H04N19/44 ,  H04N19/63 ,  H04N19/61 ,  H04N19/593 ,  H04N19/33 ,  H04N19/59 ,  H04N19/70 ,  H04N19/43 ,  H04N19/895 ,  H04N19/68 ,  H04N19/174 ,  H04N19/503

Abstract: The present invention relates to an inter-layer prediction method and to an apparatus implementing the method. The method may comprise the steps of generating a first block constituted by the value obtained by up-sampling the reconstruction value of a reference block of a reference layer corresponding to the current block; generating a second block constituted by a prediction value derived from intra-prediction mode of the current block; and generating a prediction block of the current block by combining sample values of the first block and the second block. Thus, intra-prediction on the current layer can be performed using the intra-prediction mode information of another layer.

公开(公告)号：US20180295361A1

公开(公告)日：2018-10-11

申请号：US15764816

申请日：2016-09-23

Applicant: LG Electronics Inc.

Inventor： Chulkeun Kim ,  Junghak Nam ,  Jaehyun Lim ,  Naeri Park ,  Jungdong Seo

IPC: H04N19/117 ,  H04N19/80 ,  H04N19/176 ,  H04N19/513

CPC classification number: H04N19/117 ,  H04N19/147 ,  H04N19/176 ,  H04N19/196 ,  H04N19/42 ,  H04N19/44 ,  H04N19/513 ,  H04N19/80 ,  H04N19/82

Abstract: A filtering method performed by a decoding device according to the present invention comprises the steps of: deriving a specific neighboring block of a current block so as to derive filter information on the current block; deriving the specific neighboring block and a reference block within a reference picture corresponding to the specific neighboring block; deriving the filter information on the current block on the basis of the specific neighboring block and the reference block; and filtering the current block on the basis of the filter information. According to the present invention, the overall coding efficiency can be improved by deriving the filter information on the basis of the neighboring block of the already decoded current block and reducing or removing the amount of data for the transmission of the information necessary for filter generation.

公开(公告)号：US09866843B2

公开(公告)日：2018-01-09

申请号：US15412143

申请日：2017-01-23

Applicant: LG ELECTRONICS INC.

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

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/159 ,  H04N19/593 ,  H04N19/11 ,  H04N19/176 ,  H04N19/44 ,  H04N19/96

CPC classification number: H04N19/159 ,  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：US09769487B2

公开(公告)日：2017-09-19

申请号：US15464611

申请日：2017-03-21

Applicant: LG ELECTRONICS INC.

Inventor： Jungsun Kim ,  Joonyoung Park ,  Chulkeun Kim ,  Hendry Hendry ,  Byeongmoon Jeon

IPC: H04N19/44 ,  H04N19/503 ,  H04N19/56

CPC classification number: H04N19/44 ,  H04N19/124 ,  H04N19/176 ,  H04N19/184 ,  H04N19/463 ,  H04N19/503 ,  H04N19/91

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.

公开(公告)号：US09736482B2

公开(公告)日：2017-08-15

申请号：US14411313

申请日：2013-06-26

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry ,  Jungsun Kim ,  Chulkeun Kim ,  Byeongmoon Jeon ,  Sangoh Jeong

IPC: H04N19/13 ,  H04N19/167 ,  H04N19/174 ,  H04N19/176 ,  H04N19/91 ,  H04N19/112 ,  H04N19/129 ,  H04N19/119 ,  H04N19/70

CPC classification number: H04N19/13 ,  H04N19/112 ,  H04N19/119 ,  H04N19/129 ,  H04N19/167 ,  H04N19/174 ,  H04N19/176 ,  H04N19/70 ,  H04N19/91

Abstract: The present invention relates to a video encoding method, to a video decoding method, and to an apparatus using same. The video encoding method according to the present invention comprises the steps of: setting a tile and a slice for the inputted current picture; performing encoding based on the tile and the slice; and a step of transmitting the encoded video information. The current picture may include one or more tiles and one or more slices. The largest coding units (hereinafter, referred to as LCUs) in the slice may be arranged based on a tile scan.

公开(公告)号：US09635386B2

公开(公告)日：2017-04-25

申请号：US14793242

申请日：2015-07-07

Applicant: LG Electronics Inc.

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

IPC: H04N19/119 ,  H04N19/174 ,  H04N19/70 ,  H04N19/436

CPC classification number: H04N19/436 ,  H04N19/119 ,  H04N19/174 ,  H04N19/70

Abstract: The video encoding method 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. Here, 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：US09621909B2

公开(公告)日：2017-04-11

申请号：US14359634

申请日：2013-07-02

Applicant: LG Electronics Inc.

Inventor： Jungsun Kim ,  Joonyoung Park ,  Chulkeun Kim ,  Hendry Hendry ,  Byeongmoon Jeon

IPC: H04N19/503 ,  H04N19/176 ,  H04N19/124 ,  H04N19/463 ,  H04N19/91 ,  H04N19/184 ,  H04N19/46 ,  H04N19/70

CPC classification number: H04N19/44 ,  H04N19/124 ,  H04N19/176 ,  H04N19/184 ,  H04N19/463 ,  H04N19/503 ,  H04N19/91

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.

公开(公告)号：US20150201203A1

公开(公告)日：2015-07-16

申请号：US14419879

申请日：2013-09-09

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry ,  Joonyoung Park ,  Chulkeun Kim ,  Byeongmoon Jeon ,  Jungsun Kim

IPC: H04N19/29 ,  H04N19/132 ,  H04N19/184 ,  H04N19/44 ,  H04N19/51

CPC classification number: H04N19/29 ,  H04N19/12 ,  H04N19/132 ,  H04N19/134 ,  H04N19/139 ,  H04N19/176 ,  H04N19/184 ,  H04N19/187 ,  H04N19/30 ,  H04N19/44 ,  H04N19/51 ,  H04N19/59 ,  H04N19/70

Abstract: The present invention relates to a method and an apparatus for decoding an image, for decoding a bitstream including a plurality of layers. The image decoding method may comprise: a step of receiving and identifying dependency information indicating whether an upper layer is coded by the same coding method as a lower layer; and a step of recovering the image of the upper layer based on the identified dependency information. Thus, information indicating whether the information of the reference layer which the current layer refers to is encoded data or recovered value can be identified.

Abstract translation: 本发明涉及一种用于对图像进行解码的方法和装置，用于对包含多个层的比特流进行解码。 图像解码方法可以包括：接收并识别表示通过与下层相同的编码方法对上层进行编码的依赖关系信息的步骤; 以及基于所识别的依赖关系信息来恢复上层的图像的步骤。 因此，可以识别指示当前层参考的参考层的信息是编码数据还是恢复值的信息。

公开(公告)号：US12200237B2

公开(公告)日：2025-01-14

申请号：US18075748

申请日：2022-12-06

Applicant: LG Electronics Inc.

Inventor： Hendry Hendry ,  Jungsun Kim ,  Chulkeun Kim ,  Byeongmoon Jeon ,  Sangoh Jeong

IPC: H04N19/44 ,  H04N19/169 ,  H04N19/31 ,  H04N19/70

Abstract: The present invention includes an image information decoding method which comprises: a step of receiving a bitstream that includes a network abstraction layer (NAL) unit including information related to an encoded image; and a step of parsing an NAL unit header of the NAL unit. The NAL unit header includes layer information including reserved_one_5 bits for identifying an extended layer in an extended bitstream and temporal_id for identifying a temporal layer of a bitstream. The reserved_one_5 bits of the layer information is received prior to the temporal_id of the layer information. Thus, a method for describing scalability information in a hierarchical bitstream is provided.

公开(公告)号：US12120343B2

公开(公告)日：2024-10-15

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: H04N19/00 ,  H04N19/423 ,  H04N19/44 ,  H04N19/46 ,  H04N19/503 ,  H04N19/573 ,  H04N19/577 ,  H04N19/70

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

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.