公开(公告)号：US10721479B2

公开(公告)日：2020-07-21

申请号：US16336830

申请日：2017-08-31

Applicant: LG ELECTRONICS INC.

Inventor： Jin Heo ,  Hyeongmoon Jang

IPC: H04N19/159 ,  H04N19/105 ,  H04N19/176 ,  H04N19/91 ,  H04N19/593

Abstract: The intra prediction method according to the present invention comprises the steps of: deriving an intra prediction mode of a current block; deriving neighboring reference samples of the current block; and generating a prediction sample of the current block on the basis of linear interpolation of a first neighboring reference sample positioned in the prediction direction of the intra prediction mode, and a second neighboring reference sample positioned in the opposite direction of the prediction direction, among the neighboring reference samples of the current block, wherein the neighboring reference samples include left neighboring reference samples, left upper neighboring reference samples, upper neighboring reference samples, right neighboring reference samples, right lower neighboring reference samples, and lower neighboring reference samples of the current block. The present invention can improve intra prediction performance, and thereby reduce the amount of data required for residual information and increase the overall coding efficiency.

公开(公告)号：US10595017B2

公开(公告)日：2020-03-17

申请号：US15768773

申请日：2016-10-24

Applicant: LG ELECTRONICS INC.

Inventor： Jin Heo ,  Eunyong Son ,  Junghak Nam

IPC: H04N19/176 ,  H04N19/105 ,  H04N19/147 ,  H04N19/11 ,  H04N19/117 ,  H04N19/44 ,  H04N19/13 ,  H04N19/139 ,  H04N19/91

Abstract: According to the present invention, an image decoding method performed by a decoding device comprises the steps of: deriving a prediction mode of a current block; generating a prediction block of the current block on the basis of the prediction mode of the current block; deriving a neighboring block of the current block; deriving correlation information on the basis of a reconstruction block of the neighboring block and a prediction block of the neighboring block; deriving a modified prediction block of the current block on the basis of the prediction block of the current block and the correlation information; and deriving a reconstruction block of the current block on the basis of the modified prediction block. According to the present invention, a current block can be predicted in consideration of the correlation between a prediction sample and a reconstruction sample of a neighboring block, and a complicated image can be more efficiently reconstructed through the prediction.

公开(公告)号：US10575019B2

公开(公告)日：2020-02-25

申请号：US15757584

申请日：2016-05-13

Applicant: LG Electronics Inc.

Inventor： Jaehyun Lim ,  Naeri Park ,  Jin Heo

IPC: H04N19/82 ,  H04N19/132 ,  H04N19/176

Abstract: Disclosed are a method for encoding/decoding an image and an apparatus therefor. Specifically, the method for decoding an image may comprise the steps of: performing interpolation filtering of a reference picture; generating predicted samples from samples in the reference picture for which the interpolation filtering has been performed; generating reconstructed samples by adding residual samples and the predicted samples; and performing loop filtering of the reconstructed samples, wherein whether the predicted samples have been generated by applying a predetermined filter when performing the interpolation filtering is determined in units of first blocks; whether the filter is applied to the reconstructed samples is determined in units of second blocks, and whether the filter is applied to the reconstructed samples when performing the loop filtering is determined on the basis of whether the filter has been applied to the predicted samples when performing the interpolation filtering.

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：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.