公开(公告)号：US10979736B2

公开(公告)日：2021-04-13

申请号：US16620438

申请日：2018-06-08

Applicant: LG ELECTRONICS INC. ,  INDUSTRY-ACADEMIC COOPERATION FOUNDATION, CHOSUN UNIVERSITY

Inventor： Moonmo Koo ,  Jaehyun Lim ,  Bumshik Lee

IPC: H04N19/61 ,  H04N19/176 ,  H04N19/625

Abstract: The present disclosure provides a method for processing a video signal by using a linear relationship between transform types, the method comprising the steps of: determining a transform group on the basis of a prediction mode of a current block; parsing a transform combination index from the video signal, wherein the transform combination index indicates one of a plurality of transform combinations in the transform group; deriving a transform combination corresponding to the transform combination index, wherein the transform combination includes a horizontal transform and a vertical transform and includes DST-1 or DCT-5; performing inverse transform of the current block on the basis of the transform combination; and reconstructing the video signal by using the inverse-transformed current block.

公开(公告)号：US10523945B2

公开(公告)日：2019-12-31

申请号：US15768294

申请日：2016-10-13

Applicant: LG Electronics Inc.

Inventor： Moonmo Koo ,  Sehoon Yea ,  Eunyong Son ,  Kyuwoon Kim ,  Jin Heo ,  Junghak Nam ,  Bumshik Lee

IPC: H04B1/66 ,  H04N19/13 ,  H04N19/70 ,  H04N19/172 ,  H04N19/157 ,  H04N19/105 ,  H04N19/14 ,  H04N19/176 ,  H04N19/11

Abstract: 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：US10469838B2

公开(公告)日：2019-11-05

申请号：US15758920

申请日：2016-09-12

Applicant: LG ELECTRONICS INC.

Inventor： Bumshik Lee ,  Sehoon Yea ,  Moonmo Koo

IPC: H04N19/105 ,  H04N19/176 ,  H04N19/61 ,  H04N19/11 ,  H04N19/182 ,  H04N19/90 ,  H04N19/107 ,  H04N19/122 ,  H04N19/18 ,  H04N19/159 ,  H04N19/134 ,  H04N19/12 ,  H04N19/463 ,  H04N19/91

Abstract: A method of encoding a video signal using a graph-based transformation includes: generating a residual block using a prediction block generated according to an intra prediction mode; obtaining at least one of a self-loop weight indicating a weight of boundary pixels in the residual block or a correlation coefficient indicating an inter-pixel correlation, on the basis of a prediction angle corresponding to the intra prediction mode; generating a graph on the basis of at least one of the self-loop weight or the correlation coefficient; determining a graph-based transformation kernel on the basis of the graph; and performing a transform for the residual block using the graph-based transformation kernel.

公开(公告)号：US10341677B2

公开(公告)日：2019-07-02

申请号：US14400214

申请日：2013-05-09

Applicant: LG Electronics Inc.

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

IPC: H04N11/02 ,  H04N19/52 ,  H04N19/597 ,  H04N19/109 ,  H04N19/119 ,  H04N19/159 ,  H04N19/176 ,  H04N19/593 ,  H04N19/51 ,  H04N19/463

Abstract: A method for processing video signals by a decoding apparatus includes determining whether the temporal neighboring block of a current texture block is coded using inter-view prediction; and determining whether the spatial neighboring block of the current texture block is coded using inter-view prediction. When the temporal neighboring block and the spatial neighboring block are not coded using the inter-view prediction, deriving an inter-view motion vector of the current texture block as a disparity vector, and performing inter-view prediction for the current texture block using the derived inter-view motion vector of the current texture block. The disparity vector is obtained using a depth value according the current texture block.

公开(公告)号：US09936219B2

公开(公告)日：2018-04-03

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 ,  H04N19/52 ,  H04N19/597 ,  H04N19/527 ,  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.

公开(公告)号：US09924169B2

公开(公告)日：2018-03-20

申请号：US14383357

申请日：2013-03-06

Applicant: LG Electronics Inc.

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

IPC: H04N7/12 ,  H04N19/117 ,  H04N21/81 ,  H04N19/136 ,  H04N19/82

CPC classification number: H04N19/117 ,  H04N19/136 ,  H04N19/82 ,  H04N21/816

Abstract: According to the present invention, a method of processing a video signal includes the steps of: receiving the depth data corresponding to a given block containing present pixels; determining a variation of the depth data; comparing the variation of the depth data with a predetermined value; if the variation is less than the predetermined value, coding the present pixels by using a first partial filter, and if the variation is greater than the predetermined value, coding the present pixels by using a second partial filter; wherein the second partial filter is applied to a wider range than the first partial filter. Accordingly the image quality of improved; the complexity according to the filter application is reduced; and at the same time variable filtering may improve the coding efficiency.

公开(公告)号：US09860555B2

公开(公告)日：2018-01-02

申请号：US14402240

申请日：2013-05-22

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/56 ,  H04N19/597 ,  H04N19/625 ,  H04N19/82 ,  H04N19/573

CPC classification number: H04N19/56 ,  H04N19/573 ,  H04N19/597 ,  H04N19/625 ,  H04N19/82

Abstract: The present invention relates to a method for processing a video signal, comprising the step of inducing an inter-view motion vector of a current texture block by considering priorities between inter-view motion vector candidates of the current texture block, wherein the inter-view motion vector candidates include an inter-view motion vector of a spatial neighboring block, an inter-view motion vector of a temporal neighboring block and/or a reference inter-view motion vector, and inter-view inter prediction is performed by using the induced inter-view motion vector. The present invention can increase the accuracy of the inter-view inter prediction by selectively using the inter-view motion vector of a spatial neighboring block, the inter-view motion vector of a temporal neighboring block and/or the reference inter-view motion vector to induce an accurate inter-view motion vector, and can improve coding efficiency by reducing the amount of residual data to be transmitted.

公开(公告)号：US09285770B2

公开(公告)日：2016-03-15

申请号：US13772946

申请日：2013-02-21

Applicant: LG ELECTRONICS INC.

Inventor： Jaewon Sung ,  Moonmo Koo ,  Sehoon Yea

IPC: G03H1/08

CPC classification number: G03H1/08 ,  G03H2001/0816 ,  G03H2001/0825 ,  G03H2001/0833

Abstract: A holographic display device and method of generating a hologram using redundancy of 3D video are disclosed. A storage unit stores the hologram of a previous 3D image frame. A control unit generates an update map indicating an update required 3D point among 3D points included in a current 3D image frame based on the current 3D image frame and the previous 3D image frame and modifies the update map to further include information indicating the update of a 3D point related to the update required.

Abstract translation: 公开了使用3D视频的冗余生成全息图的全息显示装置和方法。 存储单元存储先前3D图像帧的全息图。 控制单元基于当前的3D图像帧和先前的3D图像帧，生成指示当前3D图像帧中包含的3D点中所需的3D点的更新映像，并且修改更新映射以进一步包括指示更新的信息 与需要更新相关的3D点。

公开(公告)号：US20150304676A1

公开(公告)日：2015-10-22

申请号：US14441038

申请日：2013-11-07

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/513 ,  H04N19/56 ,  H04N19/176

CPC classification number: H04N19/513 ,  H04N19/105 ,  H04N19/147 ,  H04N19/176 ,  H04N19/52 ,  H04N19/56 ,  H04N19/597

Abstract: According to the present invention, a method for processing video signals is capable of determining an interview motion vector of a current block using an interview motion vector of a neighboring block. To this end, the neighboring blocks of the current block are searched and an interview motion vector candidate list can be generated. According to the present invention, more precise interview motion vector prediction is enabled from among various interview motion vector candidates, and accordingly, coding efficiency can be increased by reducing the amount of transmitted residual data.

Abstract translation: 根据本发明，用于处理视频信号的方法能够使用相邻块的访问运动矢量来确定当前块的访问运动矢量。 为此，搜索当前块的相邻块，并且可以生成面试运动矢量候选列表。 根据本发明，能够从各种面试运动矢量候选中进行更精确的访问运动矢量预测，从而可以通过减少发送的残差数据的量来增加编码效率。

公开(公告)号：US20150208083A1

公开(公告)日：2015-07-23

申请号：US14413139

申请日：2013-07-09

Applicant: LG Electronics Inc.

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

IPC: H04N19/52 ,  H04N19/597

CPC classification number: H04N19/52 ,  H04N19/597

Abstract: A method for processing a video signal, according to the present invention, performs inter-view inter prediction for a current texture block by searching for a block coded to a reference view motion vector for neighboring blocks of the current texture block, storing a reference inter-view motion vector corresponding to the retrieved reference view motion vector of a spatial neighboring block in a candidate list, inducing an inter-view motion vector of the current texture block by using any one of the reference inter-view motion vectors stored in the candidate list, and using the induced inter-view motion vector. The present invention can improve coding efficiency by enabling a more accurate prediction of an inter-view motion vector among various inter-view motion vector candidates to thereby reduce the amount of residual data to be transmitted.

Abstract translation: 根据本发明的用于处理视频信号的方法通过搜索针对当前纹理块的相邻块的参考视图运动矢量编码的块来执行当前纹理块的视角间帧间预测，存储参考帧间 对应于候选列表中的空间相邻块的检索到的参考视图运动矢量的视图运动矢量，通过使用存储在候选中的任何一个参考视角间运动矢量来感应当前纹理块的视角间运动矢量 列表，并使用感应视角运动矢量。 本发明可以通过在各种视角间的运动矢量候补中更准确地预测视角间的运动矢量来提高编码效率，从而减少要发送的剩余数据量。