公开(公告)号：US10659814B2

公开(公告)日：2020-05-19

申请号：US15319335

申请日：2015-09-25

Applicant: LG ELECTRONICS INC.

Inventor： Junghak Nam ,  Sehoon Yea ,  Jungdong Seo ,  Sunmi Yoo

IPC: H04N19/597 ,  H04N19/17 ,  H04N19/124 ,  H04N19/172 ,  H04N19/44 ,  H04N19/51

Abstract: The present invention relates to 3D video coding device and method. A decoding method, according to the present invention, provides a 3D video decoding method. A decoding method comprises the steps of: obtaining a disparity value on the basis of a reference view and a predetermined value; deriving movement information of a current block in a depth picture on the basis of the disparity value; and generating a prediction sample of the current block on the basis of the movement information, wherein the reference view is a view of a reference picture in a reference picture list. According to the present invention, even when a base view cannot be accessed, a disparity vector can be derived on the basis of an available reference view index in a decoded picture buffer (DPB), and coding efficiency can be enhanced.

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：US10390025B2

公开(公告)日：2019-08-20

申请号：US15516270

申请日：2015-06-25

Applicant: LG Electronics Inc.

Inventor： Onur Guleryuz ,  Shunyao Li ,  Sehoon Yea

IPC: H04N19/50 ,  H04N19/172 ,  H04N19/46 ,  H04N19/85 ,  H04N19/117 ,  H04N19/176 ,  H04N19/149 ,  H04N19/82 ,  H04N19/119 ,  H04N19/66

Abstract: A method of encoding a video signal includes selecting a set of base filter kernels from a filter bank; determining a prediction filter parameter based on the set of base filter kernels; performing a filtering of a reference region for a target region based on the prediction filter parameter; and predicting the target region based on the filtered reference region, wherein the prediction filter parameter includes at least one of modulation scalar and partition information.

公开(公告)号：US10382792B2

公开(公告)日：2019-08-13

申请号：US15550331

申请日：2016-02-15

Applicant: LG Electronics Inc.

Inventor： Chulkeun Kim ,  Jin Heo ,  Sehoon Yea

IPC: H04N19/82 ,  H04N19/139 ,  H04N19/159 ,  H04N19/593 ,  H04N19/107 ,  H04N19/61 ,  H04N19/48 ,  H04N19/176 ,  H04N19/91

Abstract: Disclosed is a method of decoding a video signal. The method includes extracting an intra-prediction mode of a current block from a video signal, generating a prediction block according to the intra-prediction mode, performing a transform on the prediction block, performing a filtering on the transformed prediction block using a spatial correlation coefficient, and generating a reconstruction block based on the filtered prediction block and a residual block, wherein the spatial correlation coefficient is a value determined based on a direction of the intra-prediction mode.

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：US10321157B2

公开(公告)日：2019-06-11

申请号：US15026152

申请日：2014-10-20

Applicant: LG ELECTRONICS INC.

Inventor： Jin Heo ,  Sunmi Yoo ,  Sehoon Yea

IPC: H04B1/66 ,  H04N19/597 ,  H04N19/91 ,  H04N19/117 ,  H04N19/176 ,  H04N19/513 ,  H04N19/463 ,  H04N19/70 ,  H04N19/82

Abstract: The present invention relates to a method and an apparatus for coding a multi-view video, and a decoding apparatus according to the present invention comprises: an entropy-decoding unit for entropy-decoding a bitstream and decoding information related to residual prediction by referencing neighboring blocks of a current block; a memory for saving pictures referenced when decoding the current block; a prediction unit for inducing a prediction sample of the current block, based on the difference between sample values of a first block and a second block corresponding to the current block, from among the pictures saved to the memory, by using the residual-related information; and a filtering unit for applying filtering to a current picture restored by using the prediction sample.

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.