公开(公告)号：US20210289230A1

公开(公告)日：2021-09-16

申请号：US16318075

申请日：2016-07-15

申请人： LG ELECTRONICS INC.

发明人： Jin HEO ,  Sehoon YEA ,  Bumshik LEE

IPC分类号： H04N19/61 ,  H04N19/159 ,  H04N19/176 ,  H04N19/167 ,  H04N19/523 ,  H04N19/182 ,  H04N19/124 ,  H04N19/109

摘要： The present invention provides a method for decoding a video signal including extracting an inter prediction mode of a current block from the video signal; generating two non-square prediction blocks using two motion vectors according to the inter prediction mode; performing a non-square transform on the two non-square prediction blocks to obtain two non-square prediction blocks on a frequency domain; updating the two non-square prediction blocks on the frequency domain using a correlation coefficient or a scaling coefficient; and generating a reconstruction block based on the updated non-square prediction blocks on the frequency domain and a residual block.

公开(公告)号：US20210243441A1

公开(公告)日：2021-08-05

申请号：US16074372

申请日：2017-02-01

申请人： LG ELECTRONICS INC. ,  UNIVERSITY OF SOUTHERN CALIFORNIA

发明人： Hilmi E. EGILMEZ ,  Yung-Hsuan CHAO ,  Antonio ORTEGA ,  Bumshik LEE ,  Sehoon YEA

IPC分类号： H04N19/12 ,  H04N19/176 ,  H04N19/159 ,  H04N19/61

摘要： The present invention provides a method for encoding a video signal on the basis of a graph-based separable transform (GBST), the method comprising the steps of: generating an incidence matrix representing a line graph; training a sample covariance matrix for rows and columns from the rows and columns of a residual signal; calculating a graph Laplacian matrix for rows and columns on the basis of the incidence matrix and the sample covariance matrix for rows and columns; and obtaining a GBST by performing eigen decomposition of the graph Laplacian matrix for rows and columns.

公开(公告)号：US20190037232A1

公开(公告)日：2019-01-31

申请号：US16074710

申请日：2017-02-02

申请人： LG ELECTRONICS INC.

发明人： Jana EHMANN ,  Onur G. GULERYUZ ,  Sehoon YEA

IPC分类号： H04N19/52 ,  H04N19/192 ,  H04N19/126 ,  H04N19/117 ,  H04N19/13 ,  H04N19/147 ,  H04N19/176

CPC分类号： H04N19/52 ,  H04N19/105 ,  H04N19/117 ,  H04N19/124 ,  H04N19/126 ,  H04N19/13 ,  H04N19/147 ,  H04N19/176 ,  H04N19/182 ,  H04N19/192 ,  H04N19/46 ,  H04N19/51 ,  H04N19/567

摘要： The present invention provides a method for encoding a video signal by using an enhanced prediction signal, the method comprising the steps of: generating a prediction signal for a current block, wherein the prediction signal is generated by applying a prediction weight to a reconstructed pixel of the current block and a pixel of a motion-compensated previously decoded block; obtaining an optimal quantized transform coefficient for the current block through rate-distortion optimization, on the basis of the prediction signal; and performing entropy encoding of the optimal quantized transform coefficient.

公开(公告)号：US20180309996A1

公开(公告)日：2018-10-25

申请号：US15768294

申请日：2016-10-13

申请人： LG Electronics Inc.

发明人： Moonmo KOO ,  Sehoon YEA ,  Eunyong SON ,  Kyuwoon KIM ,  Jin HEO ,  Junghak NAM ,  Bumshik LEE

IPC分类号： H04N19/13 ,  H04N19/14 ,  H04N19/157 ,  H04N19/105 ,  H04N19/176

CPC分类号： H04N19/13 ,  H04N19/105 ,  H04N19/11 ,  H04N19/14 ,  H04N19/157 ,  H04N19/172 ,  H04N19/176 ,  H04N19/70

摘要： The present invention provides a method for encoding a video signal comprising the steps of: obtaining activity information from the video signal, wherein the activity signal indicates information relating to edge characteristics of an image and includes edge orientation information and/or edge level information; determining conditionally non-linear transform (CNT) configuration information on the basis of the activity information; and performing CNT prediction coding on the basis of the CNT configuration information, wherein the CNT prediction coding involves performing prediction using all previously decoded pixel values.

公开(公告)号：US20180270485A1

公开(公告)日：2018-09-20

申请号：US15761356

申请日：2016-03-03

申请人： LG ELECTRONICS INC.

发明人： Hyeongmoon JANG ,  Jaehyun LIM ,  Seungwook PARK ,  Sehoon YEA

IPC分类号： H04N19/139 ,  H04N19/176 ,  H04N19/51

摘要： An image encoding method according to the present invention, which is performed by an encoding apparatus, comprises the steps of: generating an adaptive motion vector range (AMVR) enable flag; deriving a motion vector difference (MVD) with respect to a current block; deriving a representative MVD value of an MVD range including a value of the MVD from among a plurality of MVD ranges; generating a coded MVD corresponding to the representative MVD value; and outputting the AMVR enable flag and the coded MVD through a bit stream. According to the present invention, the amount of bits allocated to an MVD can be reduced and the overall coding efficiency can thus be increased.

公开(公告)号：US20180220158A1

公开(公告)日：2018-08-02

申请号：US15746158

申请日：2016-07-21

申请人： LG Electronics Inc.

发明人： Moonmo KOO ,  Sehoon YEA ,  Kyuwoon KIM ,  Bumshik LEE

IPC分类号： H04N19/61 ,  H04N19/159 ,  H04N19/176 ,  H04N19/44

CPC分类号： H04N19/61 ,  H04N19/159 ,  H04N19/176 ,  H04N19/44

摘要： A method for decoding a video signal using a graph-based transform, the method being characterized by including the steps of: parsing a transform index from the video signal; obtaining context information for a target unit, where the context information includes a prediction mode for a current block or peripheral blocks; obtaining an inverse-transform kernel on the basis of at least one of the transform index and the context information; and performing an inverse transform for the current block using the inverse transform kernel.

公开(公告)号：US20170302921A1

公开(公告)日：2017-10-19

申请号：US15523424

申请日：2015-10-29

申请人： LG ELECTRONICS INC.

发明人： Sehoon YEA

IPC分类号： H04N19/105 ,  H04N19/44 ,  H04N19/107 ,  H04N19/103 ,  H04N19/70 ,  H04N19/139 ,  H04N19/61 ,  H04N19/176 ,  H04N19/51

CPC分类号： H04N19/105 ,  H04N19/103 ,  H04N19/107 ,  H04N19/12 ,  H04N19/139 ,  H04N19/176 ,  H04N19/18 ,  H04N19/19 ,  H04N19/44 ,  H04N19/51 ,  H04N19/61 ,  H04N19/70

摘要： There is provided a method for encoding a video signal based on pixel-correlations on a transform domain, the method comprising: obtaining a first transform coefficient by transforming a pixel value of a target block in a current frame; reconstructing a second transform coefficient for a corresponding block in a previous frame; and obtaining a prediction value of the first transform coefficient based on the reconstructed second transform coefficient and a correlation coefficient.

公开(公告)号：US20170019669A1

公开(公告)日：2017-01-19

申请号：US15123930

申请日：2015-03-05

申请人： LG ELECTRONICS INC.

发明人： Jin HEO ,  Eunyong SON ,  Moonmo KOO ,  Sehoon YEA

IPC分类号： H04N19/119 ,  H04N19/124 ,  H04N19/513 ,  H04N19/159 ,  H04N19/117 ,  H04N19/147 ,  H04N19/61 ,  H04N19/13

摘要： 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.

摘要翻译： 本发明涉及一种用于对基于多边形单元的静止图像或视频进行编码/解码的方法及其装置。 特别地，用于基于多边形单元对图像进行编码的方法可以包括以块为单位划分输入图像，确定块内的至少一个点的位置，确定块的每一侧中的至少一个点的位置 块，使用块的顶点将块划分为至少一个多边形单元，在块的侧面中确定的点中的至少两个点以及在该块内确定的点，并以该单元对该输入图像进行编码 多边形单位。

公开(公告)号：US20160337665A1

公开(公告)日：2016-11-17

申请号：US15111735

申请日：2015-09-24

申请人： LG ELECTRONICS INC.

发明人： Sunmi YOO ,  Junghak NAM ,  Sehoon YEA

IPC分类号： H04N19/597 ,  H04N13/00 ,  H04N19/70 ,  H04N19/172 ,  H04N19/176

摘要： 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.

摘要翻译： 本发明涉及根据本发明的用于对3D视频进行编码的设备和方法，解码方法，包括以下步骤：通过第一语法接收用于将深度值切换为视差值的相机参数 ; 确定应用于先前切片或图像的相机参数是否适用于当前切片或图片; 并且如果相机参数适用于当前片或图片，则基于相机参数导出当前块的视差值。 根据本发明，一定间隔的片段或图片可以共享相同的相机参数，可以防止重叠信息的传输，并且可以提高编码效率。

公开(公告)号：US20160255368A1

公开(公告)日：2016-09-01

申请号：US15028631

申请日：2014-10-20

申请人： LG ELECTRONICS INC.

发明人： Jin HEO ,  Sehoon YEA ,  Taesup KIM ,  Junghak NAM

IPC分类号： H04N19/597 ,  H04N19/513 ,  H04N19/159 ,  H04N19/176 ,  H04N19/105 ,  H04N19/139

CPC分类号： H04N19/597 ,  H04N19/105 ,  H04N19/139 ,  H04N19/157 ,  H04N19/159 ,  H04N19/176 ,  H04N19/187 ,  H04N19/521

摘要： The present invention provides a method for coding and decoding a video comprising a multi-view. The method for coding a video, according to one embodiment of the present invention, comprises the steps of: determining whether a current block in a current view is to perform a residual prediction; inducing a first reference block and a second reference block used for the residual prediction of the current block, when the current block performs the residual prediction; generating a residual prediction sample value of the current block, based on a difference value between a sample value of the first reference block and a sample value of the second reference block; and inducing a prediction sample value of the current block by using the residual prediction sample value of the current block.

摘要翻译： 本发明提供了一种用于对包括多视图的视频进行编码和解码的方法。 根据本发明的一个实施例，用于编码视频的方法包括以下步骤：确定当前视图中的当前块是否执行残差预测; 当所述当前块执行所述剩余预测时，引导用于所述当前块的剩余预测的第一参考块和第二参考块; 基于第一参考块的采样值和第二参考块的样本值之间的差值，生成当前块的残差预测采样值; 以及通过使用当前块的剩余预测样本值来感测当前块的预测采样值。