公开(公告)号：US20210314603A1

公开(公告)日：2021-10-07

申请号：US17348204

申请日：2021-06-15

Applicant: LG Electronics Inc.

Inventor： Hyeongmoon JANG ,  Eunyong SON ,  Moonmo KOO ,  Seungwook PARK ,  Yongjoon JEON

IPC: H04N19/56 ,  H04N19/176 ,  H04N19/124 ,  H04N19/503 ,  H04N19/105 ,  H04N19/70 ,  H04N19/182 ,  H04N19/513 ,  H04N19/66

Abstract: A video decoding method performed by a decoding apparatus includes the steps of: deriving control points (CP) for a current block; acquiring movement vectors for the CPs; deriving a sample unit movement vector in the current block on the basis of the acquired movement vectors; and deriving a prediction sample for the current block on the basis of the sample unit movement vector. According to the present invention, it is possible to effectively perform, through sample unit motion vectors, inter-prediction not only in a case where an image in the current block is plane-shifted but also in a case where there are various image distortions.

公开(公告)号：US20200084455A1

公开(公告)日：2020-03-12

申请号：US16677100

申请日：2019-11-07

Applicant: LG ELECTRONICS INC.

Inventor： Jin HEO ,  Yongjoon JEON ,  Sunmi YOO ,  Eunyong SON ,  Junghak NAM

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

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：US20180167610A1

公开(公告)日：2018-06-14

申请号：US15580873

申请日：2016-04-22

Applicant: LG Electronics Inc.

Inventor： Seoungwook PARK ,  Jaehyun LIM ,  Yongjoon JEON ,  Eunyong SON

IPC: H04N19/105 ,  H04N19/513 ,  H04N19/139 ,  H04N19/70

CPC classification number: H04N19/105 ,  H04N19/136 ,  H04N19/139 ,  H04N19/176 ,  H04N19/46 ,  H04N19/513 ,  H04N19/59 ,  H04N19/70

Abstract: An inter prediction method according to the present invention, which is performed by a decoding apparatus, comprises the steps of: configuring a reference picture set for a current picture; generating a virtual reference picture corresponding to an original reference picture in the reference picture set; deriving a motion vector for a current block in the current picture; and generating a prediction sample for the current block on the basis of the motion vector and the virtual reference picture. According to the present invention, the performance of inter prediction can be enhanced on the basis of a virtual reference picture having higher correlation with a current picture, and accordingly the amount of data allocated to a residual signal can be reduced and the overall coding efficiency can be improved.

公开(公告)号：US20180098074A1

公开(公告)日：2018-04-05

申请号：US15560651

申请日：2015-12-03

Applicant: LG Electronics Inc.

Inventor： Jin HEO ,  Yongjoon JEON ,  Sunmi YOO ,  Eunyong SON ,  Junghak NAM

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

CPC classification number: H04N19/159 ,  H04N19/107 ,  H04N19/119 ,  H04N19/176 ,  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：US20180091810A1

公开(公告)日：2018-03-29

申请号：US15560101

申请日：2016-03-22

Applicant: LG Electronics Inc.

Inventor： Eunyong SON ,  Seungwook PARK ,  Yongjoon JEON ,  Moonmo KOO ,  Jin HEO ,  Sunmi YOO

IPC: H04N19/105 ,  H04N19/109 ,  H04N19/115 ,  H04N19/96 ,  H04N19/13

CPC classification number: H04N19/105 ,  H04N19/109 ,  H04N19/11 ,  H04N19/115 ,  H04N19/13 ,  H04N19/96

Abstract: The present invention relates to a method and a device for decoding a bitstream for a video signal, the method comprising the steps of: acquiring, from the bitstream, type number information and type information for a plurality of CTBs; acquiring, from the bitstream, type indication information for a current CTB among the plurality of CTBs; determining the size of the current CTB on the basis of a CTB type indicated by the type indication information; determining one or more coding blocks within the current CTB on the basis of the determined size of the current CTB and the determined minimum size of the coding block; acquiring, from the bitstream, prediction mode information with respect to each of the one or more coding blocks; and reconstructing a current coding block among the one or more coding blocks on the basis of prediction mode information related to the current coding block.

公开(公告)号：US20170201747A1

公开(公告)日：2017-07-13

申请号：US15324305

申请日：2015-07-06

Applicant: LG ELECTRONICS INC.

Inventor： Eunyong SON ,  Sehoon YEA

IPC: H04N19/105 ,  H04N19/18 ,  H04N19/176 ,  H04N19/137 ,  H04N19/117 ,  H04N19/44

Abstract: The present invention relates to a method for decoding a video signal, and an apparatus therefor, the method comprising the steps of: obtaining at least one first reference sample from a first reference picture which is different from a picture containing a current block; generating a first reference sample which is filtered by applying a filter to the obtained first reference sample; generating a reference sample array from the difference between the obtained first reference sample and the filtered first reference sample; obtaining first disparity vector information from the video signal; obtaining a first prediction sample from the generated reference sample array on the basis of the first disparity vector information; and restoring the current block on the basis of the first prediction sample.

公开(公告)号：US20160286228A1

公开(公告)日：2016-09-29

申请号：US14442669

申请日：2013-11-13

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/513 ,  H04N19/139 ,  H04N19/176

CPC classification number: H04N19/513 ,  H04N19/139 ,  H04N19/176 ,  H04N19/436 ,  H04N19/52 ,  H04N19/527 ,  H04N19/597

Abstract: According to the present invention, a method for processing video signals can determine an interview motion vector of a current block using an interview motion vector of a temporal neighboring block in consideration of a global motion vector. The present invention can obtain an accurate interview motion vector according to obtaining the temporal neighboring block of the current block in consideration of a motion change according to output sequence information and accordingly, can increase the accuracy of inter-prediction.

Abstract translation: 根据本发明，用于处理视频信号的方法可以考虑全局运动矢量使用时间相邻块的访问运动矢量来确定当前块的访问运动矢量。 考虑到根据输出序列信息的运动变化，本发明可以根据获得当前块的时间相邻块来获得准确的访问运动矢量，因此可以提高帧间预测的精度。

公开(公告)号：US20240187641A1

公开(公告)日：2024-06-06

申请号：US18400309

申请日：2023-12-29

Applicant: LG Electronics Inc.

Inventor： Hyeongmoon JANG ,  Eunyong SON ,  Moonmo KOO ,  Seungwook PARK ,  Yongjoon JEON

IPC: H04N19/56 ,  H04N19/105 ,  H04N19/124 ,  H04N19/176 ,  H04N19/182 ,  H04N19/503 ,  H04N19/513 ,  H04N19/66 ,  H04N19/70

CPC classification number: H04N19/56 ,  H04N19/105 ,  H04N19/124 ,  H04N19/176 ,  H04N19/182 ,  H04N19/503 ,  H04N19/513 ,  H04N19/66 ,  H04N19/70 ,  H04N19/91

Abstract: A video decoding method performed by a decoding apparatus includes the steps of: deriving control points (CP) for a current block; acquiring movement vectors for the CPs; deriving a sample unit movement vector in the current block on the basis of the acquired movement vectors; and deriving a prediction sample for the current block on the basis of the sample unit movement vector. According to the present invention, it is possible to effectively perform, through sample unit motion vectors, inter-prediction not only in a case where an image in the current block is plane-shifted but also in a case where there are various image distortions.

公开(公告)号：US20230319297A1

公开(公告)日：2023-10-05

申请号：US18022067

申请日：2021-08-18

Applicant: LG ELECTRONICS INC.

Inventor： Chul Keun KIM ,  Eunyong SON

IPC: H04N19/42 ,  H04N19/46 ,  H04N19/136 ,  H04N19/105

CPC classification number: H04N19/42 ,  H04N19/105 ,  H04N19/136 ,  H04N19/46

Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method performed by an image decoding apparatus according to the present disclosure is an image decoding method performed by an image decoding apparatus which reconstructs a VCM bitstream generated by video coding for machine (VCM), and may comprise the steps of determining a purpose of the VCM bitstream; and reconstructing the VCM bitstream on the basis of the determined purpose of the VCM bitstream, wherein the purpose of the VCM bitstream comprises at least one of a machine task and a human task.

公开(公告)号：US20230085554A1

公开(公告)日：2023-03-16

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 ,  H04N19/60 ,  H04N19/169 ,  H04N19/17

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.