公开(公告)号：US10742988B2

公开(公告)日：2020-08-11

申请号：US15550721

申请日：2016-02-04

Applicant: LG Electronics Inc.

Inventor： Moonmo Koo ,  Jin Heo ,  Eunyong Son ,  Sehoon Yea ,  Seungwook Park ,  Kyuwoon Kim ,  Bumshik Lee

IPC: H04N19/14 ,  H04N19/96 ,  H04N19/122 ,  H04N19/119 ,  H04N19/61 ,  H04N19/176

Abstract: The present invention provides a method of decoding a video signal using graph-based transform comprising the steps: extracting prediction unit partition information of a current coding unit from the video signal; obtaining a graph-based transform kernel from predetermined table information based on the prediction unit partition information; and performing an inverse-transform of a transform unit using the graph-based transform kernel, wherein the graph-based transform kernel corresponds to at least one of the prediction unit partition information and an edge weight, and the edge weight is a predetermined value representing a correlation between pixels.

公开(公告)号：US10701383B2

公开(公告)日：2020-06-30

申请号：US15737140

申请日：2016-06-16

Applicant: LG Electronics Inc.

Inventor： Junghak Nam ,  Chulkeun Kim ,  Seungwook Park ,  Sehoon Yea

IPC: H04N19/44 ,  H04N19/117 ,  H04N19/80 ,  H04N19/124 ,  H04N19/159

Abstract: Disclosed in the present invention are a method for encoding/decoding an image and a device for same. Particularly, a method for decoding an image may comprise the steps of: parsing a filter index from a bit stream outputted from an encoder; determining a filter set using the filter index, from among a plurality of filter sets belonging to a predetermined filter bank; deriving a filter coefficient based on a coefficient for filtering, defined by the filter set, which has been determined by the filter index; and applying filtering to a reconstructed image obtained using a prediction signal and a differential signal, by using the derived filter coefficient.

公开(公告)号：US10516884B2

公开(公告)日：2019-12-24

申请号：US15123930

申请日：2015-03-05

Applicant: LG ELECTRONICS INC.

Inventor： Jin Heo ,  Eunyong Son ,  Moonmo Koo ,  Sehoon Yea

IPC: H04N19/119 ,  H04N19/176 ,  H04N19/147 ,  H04N19/117 ,  H04N19/124 ,  H04N19/13 ,  H04N19/159 ,  H04N19/513 ,  H04N19/61 ,  H04N19/96 ,  H04N19/70 ,  H04N19/54

Abstract: The present invention relates to a method for encoding/decoding a still image or a video based on a polygon unit and an apparatus for supporting the same. Particularly, a method for encoding an image based on a polygon unit may include partitioning an input image by a unit of block, determining a position of at least one point within the block, determining a position of at least one point in each side of the block, partitioning the block into at least one polygon unit using a vertex of the block, at least two points among the points determined in the side of the block, and a point determined within the block and coding the input image by a unit of the polygon unit.

公开(公告)号：US10419779B2

公开(公告)日：2019-09-17

申请号：US15111735

申请日：2015-09-24

Applicant: LG ELECTRONICS INC.

Inventor： Sunmi Yoo ,  Junghak Nam ,  Sehoon Yea

IPC: H04N19/597 ,  H04N13/00 ,  H04N19/70 ,  H04N19/172 ,  H04N19/176 ,  H04N13/128 ,  H04N19/174 ,  H04N13/194

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, through a first syntax, a camera parameter for switching a depth value into a disparity value; determining whether the camera parameter which applies to a previous slice or picture applies to a current slice or picture; and if the camera parameter applies to a current slice or picture, deriving a disparity value of a current block on the basis of the camera parameter. According to the present invention, slices or pictures of a certain interval may share the same camera parameter, the transmission of overlapping information may be prevented, and coding efficiency may be improved.

公开(公告)号：US10045048B2

公开(公告)日：2018-08-07

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: H04N7/12 ,  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.

公开(公告)号：US09961368B2

公开(公告)日：2018-05-01

申请号：US14396595

申请日：2013-04-24

Applicant: LG Electronics Inc.

Inventor： Jin Heo ,  Jiwook Jung ,  Sehoon Yea ,  Moonmo Koo ,  Taesup Kim ,  Jaewon Sung ,  Eunyong Son

IPC: H04N7/26 ,  H04N19/44 ,  H04N19/169 ,  H04N19/61 ,  H04N19/597 ,  H04N19/119 ,  H04N19/105 ,  H04N19/122 ,  H04N19/146 ,  H04N19/147 ,  H04N19/18 ,  H04N19/176 ,  H04N19/96 ,  H04N19/136

CPC classification number: H04N19/597 ,  H04N19/105 ,  H04N19/119 ,  H04N19/122 ,  H04N19/136 ,  H04N19/146 ,  H04N19/147 ,  H04N19/176 ,  H04N19/18 ,  H04N19/61 ,  H04N19/96

Abstract: The present invention variably adjusts the maximum splitting information of a conversion unit according to the type of prediction unit and the splitting information on a coding unit and selects the optimal splitting information on the conversion unit. The present invention determines the maximum splitting information on the conversion unit of a depth block by using the maximum splitting information on the conversion unit for texture data. The present invention may lower complexity without a loss in efficiency by variably adjusting the maximum splitting information on the conversion unit in consideration of the characteristics of the depth data. The present invention may lower complexity by determining the maximum splitting information on the conversion unit of the depth data by using similar characteristics between the texture data and the depth data.

公开(公告)号：US09854269B2

公开(公告)日：2017-12-26

申请号：US14441142

申请日：2013-11-07

Applicant: LG ELECTRONICS INC.

Inventor： Jin Heo ,  Jiwook Jung ,  Sehoon Yea ,  Moonmo Koo ,  Taesup Kim ,  Jaewon Sung ,  Eunyong Son

IPC: H04N7/12 ,  H04N19/597 ,  H04N13/00 ,  H04N19/52 ,  H04N19/593

CPC classification number: H04N19/597 ,  H04N13/00 ,  H04N13/161 ,  H04N19/52 ,  H04N19/593 ,  H04N2213/003

Abstract: The method for processing a multiview video signal according to the present invention acquires motion information generated by predictively coding a picture of a reference point, acquires motion information on a part of a block of the picture from among the motion information generated by predictively coding the picture of a non-reference point, and compresses the motion information acquired for every picture of the reference point and non-reference point and stores the compressed motion information.

公开(公告)号：US09712819B2

公开(公告)日：2017-07-18

申请号：US14351307

申请日：2012-10-12

Applicant: LG Electronics Inc.

Inventor： Jaewon Sung ,  Sehoon Yea ,  Eunyong Son ,  Jiwook Jung

IPC: H04N7/12 ,  H04N19/597 ,  H04N13/00 ,  H04N19/52 ,  H04N19/96 ,  H04N19/527

CPC classification number: H04N13/161 ,  H04N19/52 ,  H04N19/527 ,  H04N19/597 ,  H04N19/96 ,  H04N2013/0085

Abstract: The present invention relates to an image encoding method and an image decoding method. An image encoding method according to the present invention comprises: a step of determining motion information of a current block; and a step of transmitting information for inducing the motion information, wherein the step of determining motion information of the current block determines the motion information of the current block by reusing motion information of a reference block.

公开(公告)号：US09349192B2

公开(公告)日：2016-05-24

申请号：US14396686

申请日：2013-04-24

Applicant: LG ELECTRONICS INC.

Inventor： Moonmo Koo ,  Jiwook Jung ,  Sehoon Yea ,  Jin Heo ,  Taesup Kim ,  Jaewon Sung ,  Eunyong Son

IPC: G06T7/20 ,  H04N19/597 ,  H04N19/52 ,  G06K9/62 ,  G06T7/00 ,  H04N5/232 ,  G06T7/40

CPC classification number: G06T7/2033 ,  G06K9/6201 ,  G06T7/40 ,  H04N5/23229 ,  H04N19/52 ,  H04N19/597

Abstract: A method for processing a video signal according to the present invention comprises the steps of: determining a motion vector list comprising at least one of a spatial motion vector, a temporal motion vector, and a mutation vector as a motion vector candidate of a target block; extracting motion vector identification information for specifying the motion vector candidate to be used as a predicted motion vector of the target block; setting the motion vector candidate corresponding to the motion vector identification information as the predicted motion vector of the target block; and performing motion compensation based on the predicted motion vector. The present invention forms the motion vector candidate and derives the motion vector of the target and derives the motion vector of the target block therefrom, thus enabling a more accurate prediction of the motion vector, and thereby reduces the amount of transmitted residual data and improves coding efficiency.

Abstract translation: 根据本发明的用于处理视频信号的方法包括以下步骤：确定包括空间运动矢量，时间运动矢量和突变矢量中的至少一个的运动矢量列表作为目标块的运动矢量候选 ; 提取用于指定要用作所述目标块的预测运动矢量的运动矢量候选的运动矢量识别信息; 将与运动矢量识别信息相对应的运动矢量候选设置为目标块的预测运动矢量; 并基于预测的运动矢量执行运动补偿。 本发明形成运动矢量候选，并导出目标的运动矢量，从而导出目标块的运动矢量，从而能够对运动矢量进行更精确的预测，从而减少发送的残留数据量并改进编码 效率。

公开(公告)号：US20150281734A1

公开(公告)日：2015-10-01

申请号：US14433773

申请日：2013-10-04

Applicant: LG ELECTRONICS INC.

Inventor： Moonmo Koo ,  Jiwook Jung ,  Sehoon Yea ,  Jin Heo ,  Taesup Kim ,  Jaewon Sung ,  Eunyong Son

IPC: H04N19/597 ,  H04N13/00 ,  H04N19/52

CPC classification number: H04N19/597 ,  H04N13/161 ,  H04N19/43 ,  H04N19/436 ,  H04N19/52

Abstract: According to the present invention, an inter-view motion vector of a current coding unit is acquired using parallel processing information, and a motion vector of a current prediction unit in the current coding unit is acquired in parallel using the inter-view motion vector of the current coding unit. The present invention relates to a method and device for processing a video signal, wherein a motion vector prediction value of the current prediction unit is acquired by comparing output order information of a reference picture corresponding to the current prediction unit and output order information of a reference picture corresponding to a corresponding block. According to the present invention, through a parallel processing step, a multi-view point video image can be quickly restored, and the accuracy of the motion vector prediction value can be increased using motion information corresponding to the reference picture of the corresponding block of a different view point from the current prediction unit.

Abstract translation: 根据本发明，使用并行处理信息获取当前编码单元的视角间的运动矢量，并且使用视差运动矢量并行地获取当前编码单位中的当前预测单元的运动矢量 当前编码单元。 本发明涉及一种用于处理视频信号的方法和装置，其中当前预测单元的运动矢量预测值是通过比较与当前预测单元相对应的参考图像的输出顺序信息和参考的输出顺序信息来获取的 图片对应于相应的块。 根据本发明，通过并行处理步骤，可以快速恢复多视点视频图像，并且可以使用与对应的块的参考图像相对应的运动信息来增加运动矢量预测值的精度 与当前预测单元不同的观点。