公开(公告)号：US20180249171A1

公开(公告)日：2018-08-30

申请号：US15754720

申请日：2016-02-29

Applicant: LG Electronics, Inc.

Inventor： Jaehyun LIM ,  Naeri PARK ,  Jungdong SEO ,  Junghak NAM

IPC: H04N19/51 ,  H04N19/176

CPC classification number: H04N19/51 ,  H04N19/176 ,  H04N19/513 ,  H04N19/523 ,  H04N19/53 ,  H04N19/70

Abstract: Disclosed are an inter prediction mode-based image processing method and an apparatus therefor. Particularly, a method for processing an image on the basis of inter prediction may comprise the steps of: determining whether a motion vector scale adaptation is applied to a block; up-scaling a down-scaled MVD (Motion Vector Difference) when the motion vector scale adaptation is applied to the block; deriving a MV (Motion Vector) for the block, using the up-scaled MVD and a MVP (Motion Vector Predictor); and generating a predictive block of the block, using the derived MV.

公开(公告)号：US20180124398A1

公开(公告)日：2018-05-03

申请号：US15570160

申请日：2016-04-27

Applicant: LG Electronics Inc.

Inventor： Naeri PARK ,  Jaehyun LIM ,  Jungdong SEO ,  Junghak NAM

IPC: H04N19/109 ,  H04N19/105 ,  H04N19/107 ,  H04N19/91 ,  H04N19/124

CPC classification number: H04N19/109 ,  H04N19/105 ,  H04N19/107 ,  H04N19/119 ,  H04N19/124 ,  H04N19/463 ,  H04N19/70 ,  H04N19/91 ,  H04N19/96

Abstract: The present invention relates to method and device for decoding a bitstream for a video signal in a decoding device, the method comprising the steps of: obtaining skip flag information about a current coding block from a bitstream; and, if the skip flag information indicates that a skip mode is applied with respect to the current coding block, performing inter-prediction for the current coding block by means of inter-prediction parameter information of a neighboring block of the current coding block. Moreover, the neighboring block of the current coding block comprises a plurality of temporal neighboring blocks and spatial neighboring blocks adjacent to the current coding block. Also, the step of performing inter-prediction for the current coding block comprises: dividing of the current coding block into a plurality of sub-blocks; with respect to each of the plurality of sub-blocks, obtaining of inter-prediction parameter information for the corresponding sub-blocks from neighboring blocks that are adjacent to the corresponding sub-blocks among the neighboring blocks of the current coding blocks; and obtaining of a predicted value for the corresponding sub-blocks on the basis of the obtained inter-prediction parameter information.

公开(公告)号：US20170289573A1

公开(公告)日：2017-10-05

申请号：US15510500

申请日：2015-09-07

Applicant: LG ELECTRONICS INC.

Inventor： Sunmi YOO ,  Jungdong SEO ,  Junghak NAM ,  Sehoon YEA

IPC: H04N19/597 ,  H04N19/139 ,  H04N19/159 ,  H04N19/52 ,  H04N19/513 ,  H04N19/176 ,  H04N19/105

CPC classification number: H04N19/597 ,  H04N19/105 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176 ,  H04N19/52 ,  H04N19/521 ,  H04N19/70

Abstract: The present invention relates to a device and a method for coding a multi-view video, a residual prediction method, according to the present invention, comprising the steps of: deriving a disparity vector of a current block; performing residual prediction on the current block on the basis of the disparity vector; and generating a residual prediction sample, wherein the disparity vector is not derived on the basis of a neighboring block of the current block, but is derived from a preset default vector. According to the present invention, the effect of prediction may be increased by performing residual prediction on the current block according to a certain condition, not only when the disparity vector is induced but also when the disparity vector is not induced from the neighboring block of the current block.

公开(公告)号：US20170280160A1

公开(公告)日：2017-09-28

申请号：US15510807

申请日：2015-09-07

Applicant: LG Electronics Inc.

Inventor： Sunmi YOO ,  Jungdong SEO ,  Junghak NAM ,  Sehoon YEA

IPC: H04N19/597 ,  H04N19/176 ,  H04N19/70 ,  H04N19/50

CPC classification number: H04N19/597 ,  H04N19/105 ,  H04N19/146 ,  H04N19/176 ,  H04N19/50 ,  H04N19/593 ,  H04N19/70

Abstract: The present invention relates to a device and a method for coding a 3D video, a decoding method, according to the present invention, comprising the steps of: receiving a single depth mode (SDM) flag information indicating whether the SDM is applied to a current block; and if the SDM is applied to the current block, generating a prediction sample on the basis of a first candidate and a second candidate derived by using spatial neighboring reference samples of the current block, wherein the number of the spatial neighboring reference samples is two, and among the neighboring reference samples, the first neighboring reference sample is positioned on the left side of the current block, and the second neighboring reference sample is positioned on the upper side of the current block. According to the present invention, the current block may be predicted on the basis of one representative value derived by using the predetermined neighboring reference sample, and the complexity of an operation may be decreased, and coding efficiency may be increased.

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：US20240275957A1

公开(公告)日：2024-08-15

申请号：US18644829

申请日：2024-04-24

Applicant: LG ELECTRONICS INC.

Inventor： Sunmi YOO ,  Jaeho LEE ,  Jangwon CHOI ,  Jungdong SEO ,  Jin HEO

IPC: H04N19/11 ,  H04N19/117 ,  H04N19/176 ,  H04N19/82

CPC classification number: H04N19/11 ,  H04N19/117 ,  H04N19/176 ,  H04N19/82

Abstract: A method by which a decoding device performs image decoding, according to the present invention, comprises the steps of: deriving an intra prediction mode of a current block; deriving neighboring samples including left neighboring samples and upper neighboring samples of the current block; deriving reference samples for prediction of a target sample among the neighboring samples on the basis of the position of the target sample of the current block and the prediction angle of the intra prediction mode; determining an interpolation filter for the target sample; and deriving the prediction sample of the target sample on the basis of the interpolation filter and the reference samples.

公开(公告)号：US20230147003A1

公开(公告)日：2023-05-11

申请号：US18091933

申请日：2022-12-30

Applicant: LG ELECTRONICS INC.

Inventor： Sunmi YOO ,  Jaeho LEE ,  Jangwon CHOI ,  Jungdong SEO ,  Jin HEO

IPC: H04N19/11 ,  H04N19/117 ,  H04N19/176 ,  H04N19/82

CPC classification number: H04N19/11 ,  H04N19/117 ,  H04N19/176 ,  H04N19/82

Abstract: A method by which a decoding device performs image decoding, according to the present invention, comprises the steps of: deriving an intra prediction mode of a current block; deriving neighboring samples including left neighboring samples and upper neighboring samples of the current block; deriving reference samples for prediction of a target sample among the neighboring samples on the basis of the position of the target sample of the current block and the prediction angle of the intra prediction mode; determining an interpolation filter for the target sample; and deriving the prediction sample of the target sample on the basis of the interpolation filter and the reference samples.

公开(公告)号：US20220329825A1

公开(公告)日：2022-10-13

申请号：US17843531

申请日：2022-06-17

Applicant: LG Electronics Inc.

Inventor： Naeri PARK ,  Junghak NAM ,  Jaehyun LIM ,  Seunghwan KIM ,  Jungdong SEO ,  Jaeho LEE ,  Hyeongmoon JANG

IPC: H04N19/139 ,  H04N19/105 ,  H04N19/109 ,  H04N19/176 ,  H04N19/503

Abstract: An image decoding method performed by a decoding apparatus includes the operations of: deriving a correspondence block corresponding to the current block of the current picture, the correspondence block being located in a co-located picture; deriving a movement vector of the correspondence block; scaling the movement vector of the correspondence block based on a first temporal distance and second temporal distance, the first temporal distance being the difference between the POC values of the co-located picture and POC values of the reference picture of the correspondence block, and the second temporal distance being the difference between the POC values of the co-located picture and POC values of the current picture containing the current block; deriving the movement vector updated based on the scaled movement vector and location of the current block; and deriving a movement vector of the current block based on the updated movement vector.

公开(公告)号：US20200228797A1

公开(公告)日：2020-07-16

申请号：US16834788

申请日：2020-03-30

Applicant: LG Electronics Inc.

Inventor： Naeri PARK ,  Jaehyun LIM ,  Jungdong SEO ,  Junghak NAM

IPC: H04N19/109 ,  H04N19/119 ,  H04N19/96 ,  H04N19/463 ,  H04N19/70 ,  H04N19/105 ,  H04N19/107 ,  H04N19/124

Abstract: The present invention relates to method and device for decoding a bitstream for a video signal in a decoding device, the method comprising the steps of: obtaining skip flag information about a current coding block from a bitstream; and, if the skip flag information indicates that a skip mode is applied with respect to the current coding block, performing inter-prediction for the current coding block by means of inter-prediction parameter information of a neighboring block of the current coding block. Moreover, the neighboring block of the current coding block comprises a plurality of temporal neighboring blocks and spatial neighboring blocks adjacent to the current coding block. Also, the step of performing inter-prediction for the current coding block comprises: dividing of the current coding block into a plurality of sub-blocks; with respect to each of the plurality of sub-blocks, obtaining of inter-prediction parameter information for the corresponding sub-blocks from neighboring blocks that are adjacent to the corresponding sub-blocks among the neighboring blocks of the current coding blocks; and obtaining of a predicted value for the corresponding sub-blocks on the basis of the obtained inter-prediction parameter information.

公开(公告)号：US20200221077A1

公开(公告)日：2020-07-09

申请号：US16644442

申请日：2018-03-19

Applicant: LG ELECTRONICS INC.

Inventor： Naeri PARK ,  Junghak NAM ,  Hyeongmoon JANG ,  Jungdong SEO ,  Jaeho LEE

IPC: H04N19/105 ,  H04N19/513 ,  H04N19/176

Abstract: In the present disclosure, an inter prediction mode based image processing method and an apparatus therefor are disclosed. Specifically, a method of processing an image on the basis of an inter prediction mode may comprise a step of forming a plurality of candidate groups by checking merge candidates according to a predetermined order; a step of extracting a group index indicating a specific candidate group among the plurality of candidate groups; a step of extracting a merge index indicating the specific merge candidate in the candidate group indicated by the group index; and a step of generating a prediction block of a current block using motion information of the merge candidate indicated by the merge index.