公开(公告)号：US20150215638A1

公开(公告)日：2015-07-30

申请号：US14428604

申请日：2013-09-13

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/52 ,  H04N19/593

CPC classification number: H04N19/52 ,  H04N19/56 ,  H04N19/593 ,  H04N19/597

Abstract: The present invention relates to a method and an apparatus for processing a video signal. The method comprises: acquiring an inter-view motion vector from a neighboring block of a current texture block; and decoding the current texture block using the acquired inter-view motion vector. The neighboring block includes a spatial neighboring block and a temporal neighboring block. The acquired inter-view motion vectors are compared with each other to determine the inter-view motion vector of the current texture block. The method and apparatus of the present invention may reduce the complexity for acquiring an inter-view motion vector and improve the accuracy of inter-view inter prediction.

Abstract translation: 本发明涉及一种用于处理视频信号的方法和装置。 该方法包括：从当前纹理块的相邻块获取视角间运动矢量; 以及使用所获取的视角间运动矢量对当前纹理块进行解码。 相邻块包括空间相邻块和时间相邻块。 将所获取的视角间运动矢量相互比较，以确定当前纹理块的视角间运动矢量。 本发明的方法和装置可以降低获取视角间的运动矢量的复杂性，并提高视域间预测的准确性。

公开(公告)号：US20150215626A1

公开(公告)日：2015-07-30

申请号：US14433585

申请日：2013-10-04

Applicant: LG ELECTRONICS INC.

Inventor： Taesup Kim ,  Jin Heo ,  Jiwook Jung ,  Sehoon Yea

IPC: H04N19/139 ,  H04N19/122 ,  H04N19/176 ,  H04N19/182 ,  H04N19/119 ,  H04N19/167

CPC classification number: H04N19/139 ,  H04N19/119 ,  H04N19/122 ,  H04N19/167 ,  H04N19/176 ,  H04N19/182 ,  H04N19/463 ,  H04N19/597 ,  H04N19/82

Abstract: The present invention relates to a method for processing a video signal and a video decoder, wherein an offset parameter of a reference block is acquired, an offset parameter of a current block is acquired by using the offset parameter of the reference block, an adaptive parameter is applied to the current block by using the offset parameter of the current block, and the reference block is a block in a different view point from the current block. According to the present invention, an accurate adaptive parameter can be applied to the current block by using an offset parameter of a reference view point in consideration of a difference between view points when obtaining the offset parameter of the current block.

Abstract translation: 本发明涉及视频信号处理方法和视频解码器，其中获取参考块的偏移参数，通过使用参考块的偏移参数，自适应参数获取当前块的偏移参数 通过使用当前块的偏移参数应用于当前块，并且参考块是与当前块不同的视点中的块。 根据本发明，当获得当前块的偏移参数时，考虑到视点之间的差异，可以通过使用参考视点的偏移参数将精确的自适应参数应用于当前块。

公开(公告)号：US20150195569A1

公开(公告)日：2015-07-09

申请号：US14413157

申请日：2013-07-10

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/597 ,  H04N13/00 ,  H04N19/513 ,  H04N19/593 ,  H04N19/52

CPC classification number: H04N19/597 ,  H04N13/161 ,  H04N19/52 ,  H04N19/521 ,  H04N19/593 ,  H04N2213/007

Abstract: The present invention relates to a method and apparatus for processing a video signal, which involve acquiring the prediction value for the current texture block and performing an inter-view compensation on the prediction value for the current texture block using a first compensation coefficient and a second compensation coefficient. The first compensation coefficient is acquired using the neighboring pixel of the current texture block, the neighboring pixel of the reference block, and the first compensation coefficient. The method and apparatus for the present invention compensate for inter-view differences caused by imaging conditions, such as lighting or a camera, during the capture of multiview images so as to achieve improved accuracy in inter-view inter prediction.

Abstract translation: 本发明涉及一种用于处理视频信号的方法和装置，其涉及获取当前纹理块的预测值并且使用第一补偿系数对当前纹理块的预测值进行视角间补偿，并且第二 补偿系数。 使用当前纹理块的相邻像素，参考块的相邻像素和第一补偿系数来获取第一补偿系数。 本发明的方法和装置在拍摄多视图图像期间补偿由诸如照明或照相机之类的成像条件引起的视差之间的差异，从而提高视角间预测的精度。

公开(公告)号：US20150117517A1

公开(公告)日：2015-04-30

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: H04N19/597 ,  H04N19/105 ,  H04N19/122 ,  H04N19/147 ,  H04N19/18 ,  H04N19/146

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.

Abstract translation: 本发明根据预测单元的类型和编码单元上的分割信息可变地调整转换单元的最大分割信息，并在转换单元上选择最佳分割信息。 本发明通过使用用于纹理数据的转换单元上的最大分割信息来确定深度块的转换单元上的最大分割信息。 考虑到深度数据的特性，本发明可以通过可变地调整转换单元上的最大分割信息来降低复杂度而不降低效率。 本发明可以通过使用纹理数据和深度数据之间的类似特征来确定深度数据的转换单元上的最大分割信息来降低复杂性。

公开(公告)号：US20140205011A1

公开(公告)日：2014-07-24

申请号：US14346389

申请日：2012-09-18

Applicant: LG Electronics Inc.

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

IPC: H04N19/50 ,  H04N19/597

CPC classification number: H04N19/50 ,  H04N19/593 ,  H04N19/597

Abstract: The present invention relates to an intra prediction method for predicting pixel values within a prediction target block on the basis of a plurality of peripheral pixels adjacent to the prediction target block. The intra prediction method according to the present invention includes the steps of: receiving and decoding encoded image information; determining a target boundary by determining a plurality of boundary pixels representing the target boundary within the prediction target block on the basis of the decoded image information; determining a plurality of prediction target regions partitioned on the basis of the target boundary within the prediction target block; and performing a prediction for each of the plurality of prediction target regions on the basis of peripheral pixels differing from each other selected from among the plurality of the peripheral pixels.

Abstract translation: 本发明涉及一种帧内预测方法，用于基于与该预测对象块相邻的多个周边像素来预测预测对象块内的像素值。 根据本发明的帧内预测方法包括以下步骤：接收和解码编码的图像信息; 通过基于解码图像信息确定表示预测对象块内的目标边界的多个边界像素来确定目标边界; 确定在所述预测目标块内的所述目标边界的基础上划分的多个预测目标区域; 并且基于从所述多个周边像素中选择的彼此不同的周边像素，对所述多个预测对象区域中的每一个进行预测。

公开(公告)号：US11503292B2

公开(公告)日：2022-11-15

申请号：US16074372

申请日：2017-02-01

Applicant: LG ELECTRONICS INC. ,  UNIVERSITY OF SOUTHERN CALIFORNIA

Inventor： Hilmi E. Egilmez ,  Yung-Hsuan Chao ,  Antonio Ortega ,  Bumshik Lee ,  Sehoon Yea

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

Abstract: 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：US10856012B2

公开(公告)日：2020-12-01

申请号：US15107042

申请日：2014-12-22

Applicant: LG ELECTRONICS INC.

Inventor： Onur Gonen Guleryuz ,  Amir Said ,  Sehoon Yea

IPC: H04N19/176 ,  H04N19/91 ,  H04N19/593 ,  H04N19/126 ,  H04N19/154 ,  H04N19/46 ,  H04N19/192 ,  H04N19/11 ,  H04N19/147 ,  H04N19/124 ,  H04N19/13 ,  H04N19/15 ,  H04N19/61

Abstract: Disclosed herein is a method of encoding a video signal, comprising receiving an original video signal; comparing the original video signal with available reconstructed signals; generating a transform-coded correction signal based on a result of the comparison; generating a prediction signal based on the transform-coded correction signal and the available reconstructed signals; and reconstructing a signal by adding the transform-coded correction signal to the prediction signal.

公开(公告)号：US10819987B2

公开(公告)日：2020-10-27

申请号：US15775307

申请日：2016-11-11

Applicant: LG ELECTRONICS INC.

Inventor： Hyeongmoon Jang ,  Bumshik Lee ,  Sehoon Yea

IPC: H04N19/18 ,  H04N19/159 ,  H04N19/176 ,  H04N19/124 ,  H04N19/44 ,  H04N19/119 ,  H04N19/11 ,  H04N19/105 ,  H04N19/61 ,  H04N19/50

Abstract: An intra prediction method according to the present invention comprises the steps of: determining an intra prediction mode for a current block; determining whether to apply a coefficient induced intra prediction (CIIP) to the current block; deriving neighboring reference samples for the current block on the basis of whether the CIIP is applied; and generating prediction samples for the current block on the basis of the intra prediction mode and the neighboring samples. The present invention can generate modified or improved neighboring reference samples and thereby can improve the performance of intra prediction.

公开(公告)号：US10750167B2

公开(公告)日：2020-08-18

申请号：US15768992

申请日：2016-09-27

Applicant: LG ELECTRONICS INC.

Inventor： Eunyong Son ,  Jin Heo ,  Seungwook Park ,  Sehoon Yea

IPC: H04N19/105 ,  H04N19/11 ,  H04N19/593 ,  H04N19/159 ,  H04N19/176 ,  H04N19/52 ,  H04N19/196

Abstract: An image decoding method, which is performed by a decoding device according to the present invention, comprises the steps of: acquiring the information on an intra-prediction mode of a current block from a received bit stream; deriving neighboring reference samples of the current block; deriving a first prediction value for a current sample of the current block on the basis of the intra-prediction mode and the neighboring reference samples; deriving a second prediction value for the current sample on the basis of adjacent samples of the current sample; and deriving a prediction value for the current sample on the basis of the first prediction value and the second prediction value. According to the present invention, the intra-prediction value can be derived on the basis of the adjacent samples of the current sample within the present block, and the intra-prediction accuracy can be improved therethrough.

公开(公告)号：US10715802B2

公开(公告)日：2020-07-14

申请号：US15764230

申请日：2016-09-29

Applicant: LG Electronics Inc. ,  UNIVERSITY OF SOUTHERN CALIFORNIA

Inventor： Hilmi E. Egilmez ,  Sehoon Yea ,  Antonio Ortega ,  Onur G. Guleryuz ,  Jana Ehmann

IPC: H04N19/176 ,  H04N19/134 ,  H04N19/11 ,  H04N19/13 ,  H04N19/85 ,  H04N19/90 ,  H04N19/96 ,  H04N19/91

Abstract: The present invention provides a method for encoding a video signal by using a single optimized graph, comprising the steps of: obtaining a residual block; generating graphs from the residual block; generating an optimized graph and an optimized transform by combining the graphs, wherein the graphs are combined on the basis of an optimization step; and performing a transform for the residual block on the basis of the optimized graph and the optimized transform.