公开(公告)号：US20150271523A1

公开(公告)日：2015-09-24

申请号：US14434282

申请日：2013-10-08

Applicant: LG Electronics Inc.

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

IPC: H04N19/597 ,  H04N19/52 ,  H04N19/513

CPC classification number: H04N19/597 ,  H04N19/196 ,  H04N19/463 ,  H04N19/513 ,  H04N19/52 ,  H04N19/521 ,  H04N19/82

Abstract: The video signal decoding method according to the present invention involves acquiring weighting-value predicting data of a neighboring view texture block corresponding to the current view texture block, deriving weighting-value predicting data of the current view texture block by using the weighting-value predicting data of the neighboring view texture block, and subjecting the current view texture block to weighting-value compensation by using the derived weighting-value predicting data.

Abstract translation: 根据本发明的视频信号解码方法包括获取与当前视图纹理块相对应的相邻视图纹理块的加权值预测数据，通过使用加权值预测导出当前视图纹理块的加权值预测数据 相邻视图纹理块的数据，并且通过使用导出的加权值预测数据对当前视图纹理块进行加权值补偿。

公开(公告)号：US20150055702A1

公开(公告)日：2015-02-26

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: H04N19/117 ,  H04N19/82 ,  H04N21/81 ,  H04N19/136

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.

Abstract translation: 根据本发明，一种处理视频信号的方法包括以下步骤：接收对应于包含当前像素的给定块的深度数据; 确定深度数据的变化; 将深度数据的变化与预定值进行比较; 如果变化小于预定值，则通过使用第一部分滤波器对当前像素进行编码，并且如果变化大于预定值，则使用第二部分滤波器对当前像素进行编码; 其中所述第二部分滤波器被应用于比所述第一部分滤波器更宽的范围。 因此图像质量得到改善; 根据滤波器应用的复杂度降低; 并且同时可变滤波可以提高编码效率。

公开(公告)号：US20150043636A1

公开(公告)日：2015-02-12

申请号：US14383386

申请日：2013-03-07

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/597

CPC classification number: H04N19/597 ,  G06T3/0093 ,  H04N19/124 ,  H04N19/463 ,  H04N19/51 ,  H04N19/537 ,  H04N19/59

Abstract: The present invention encodes a warp map by using a video codec such as a multi-view texture image by a warp converter, and decodes a warp map by using a video codec such as a multi-view texture image by using a warp inverter. The present invention may incur less additional costs because it does not use a dedicated warp map coder. In addition, the present invention may convert a warp map by using a warp map converter and send the converted map to an encoder and invert decoded warp map information by using a warp map inverter so that the warp map is encoded and decoded by using a video codec such as a multi-view texture image. In addition, it is possible to increase compatibility by enabling various kinds of supplementary data to be used. In addition, it is possible to increase technique compatibility by simply applying a warp map scheme to a 3D video coding technique using a depth map.

Abstract translation: 本发明通过使用诸如多维视图纹理图像的视频编解码器通过warp转换器对经线图进行编码，并且通过使用经线逆变器通过使用诸如多视图纹理图像的视频编解码器来解码经线图。 由于本发明不使用专用的经线图编码器，所以本发明可能会增加额外的成本。 此外，本发明可以通过使用经线映射转换器来转换经线图，并将转换的映射发送到编码器，并使用经线映射反相器反转解码的经线图信息，从而通过使用视频对经线图进行编码和解码 编解码器如多视图纹理图像。 此外，可以通过使各种补充数据的使用来提高兼容性。 此外，通过简单地将翘曲映射方案应用于使用深度图的3D视频编码技术，可以提高技术兼容性。

公开(公告)号：US11695958B2

公开(公告)日：2023-07-04

申请号：US16074265

申请日：2017-02-01

Applicant: LG ELECTRONICS INC. ,  UNIVERSITY OF SOUTHERN CALIFORNIA

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

IPC: H04N11/02 ,  H04N19/61 ,  H04N19/107 ,  H04N19/124 ,  H04N19/13 ,  H04N19/14 ,  H04N19/182

CPC classification number: H04N19/61 ,  H04N19/107 ,  H04N19/124 ,  H04N19/13 ,  H04N19/14 ,  H04N19/182

Abstract: The present invention provides a method for encoding a video signal based on an Edge Adaptive Graph-Based Transform (EA-GBT) including detecting a step edge or a ramp edge from a residual signal; generating a graph signal based on at least one of the step edge or the ramp edge; obtaining an EA-GBT coefficient by performing the EA-GBT for the graph signal; quantizing the EA-GBT coefficient; and entropy-encoding the quantized EA-GBT coefficient.

公开(公告)号：US10856001B2

公开(公告)日：2020-12-01

申请号：US15553078

申请日：2016-02-15

Applicant: LG Electronics Inc.

Inventor： Moonmo Koo ,  Sehoon Yea ,  Eunyong Son ,  Jin Heo

IPC: H04N19/513 ,  H04N19/96 ,  H04N19/17 ,  H04N19/14 ,  H04N19/119 ,  H04N19/70 ,  H04N19/52 ,  H04N19/537 ,  H04N19/132 ,  H04N19/176 ,  H04N19/103 ,  H04N19/117 ,  H04N19/124

Abstract: A polygon unit-based image processing method, and a device for the same are disclosed. Specifically, a method for decoding an image on the basis of a polygon unit can comprise the steps of: deriving a motion vector predictor for a polygon apex forming the polygon unit; deriving a motion vector for the polygon apex on the basis of a motion vector difference for the polygon apex and the motion vector predictor; and deriving a prediction sample for the polygon unit from a division unit, which is specified by the motion vector, in a reference picture.

公开(公告)号：US10701356B2

公开(公告)日：2020-06-30

申请号：US15766278

申请日：2016-10-13

Applicant: LG ELECTRONICS INC.

Inventor： Junghak Nam ,  Chulkeun Kim ,  Sehoon Yea

IPC: H04N19/117 ,  H04N19/174 ,  H04N19/46 ,  H04N19/80 ,  H04N19/44 ,  H04N19/85 ,  H04N19/625 ,  H04N19/48 ,  H04N19/17 ,  H04N19/70 ,  H04N19/18 ,  H04N19/82 ,  H04N19/86 ,  H04N19/139

Abstract: An image decoding method performed by a decoding apparatus according to the present invention comprises the steps of: generating a reconstruction area for a target area within a current picture; deriving a predetermined plurality of basic filters for the target area; updating at least one basic filter among the plurality of basic filters; receiving weight information for each of the basic filters; determining a merge filter for the target area on the basis of the basic filters and the weight information; and generating a modified reconstruction area by performing filtering on the target area on the basis of the filter coefficient of the determined merge filter. The present invention allows updating with filter information suitable for improving the visual quality of the target area and can thereby improve the accuracy of filtering and overall coding efficiency.

公开(公告)号：US10674146B2

公开(公告)日：2020-06-02

申请号：US15764685

申请日：2016-09-30

Applicant: LG ELECTRONICS INC.

Inventor： Jin Heo ,  Eunyong Son ,  Jaeho Lee ,  Seungwook Park ,  Sehoon Yea ,  Junghak Nam

IPC: H04N19/105 ,  H04N19/176 ,  H04N19/124 ,  H04N19/44 ,  H04N19/90 ,  H04N19/119 ,  H04N19/129 ,  H04N19/70 ,  H04N19/14 ,  H04N19/18 ,  H04N19/61

Abstract: An image decoding method according to the present invention comprises the steps of: deriving quantized transform coefficients by unit of sub-blocks in a transform unit on the basis of residual information included in a bitstream; deriving transform coefficients on the basis of the quantized transform coefficients; generating a residual sample on the basis of the transform coefficients; generating a prediction sample on the basis of an inter prediction or an intra prediction; and restoring an image on the basis of the residual sample and the prediction sample. According to the present invention, a quantity of data required for a residual signal can be reduced, and an overall coding efficiency can be improved.

公开(公告)号：US10659758B2

公开(公告)日：2020-05-19

申请号：US15652078

申请日：2017-07-17

Applicant: LG ELECTRONICS INC.

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

IPC: H04N13/161 ,  H04N19/52 ,  H04N19/96 ,  H04N19/527 ,  H04N19/597 ,  H04N13/00

Abstract: A video decoding method that includes: receiving information for deriving motion information of a current block; deriving the motion information of the current block based on the received information for deriving the motion information; and performing prediction to generate predicted pixels of the current block based on the motion information of the current block, wherein the motion information of the current block is determined by using motion information of a reference block, wherein the reference block is determined based on a specific disparity vector, wherein the specific disparity vector is determined for an area in a picture to which the current block belongs, wherein the area which the specific disparity vector is determined is split based on a quad tree structure, and wherein the current block is a block of a texture picture and the reference block is a block in a reference view is disclosed.

公开(公告)号：US10567763B2

公开(公告)日：2020-02-18

申请号：US15577029

申请日：2016-05-26

Applicant: LG Electronics Inc. ,  University of Southern California

Inventor： Moonmo Koo ,  Sehoon Yea ,  Bumshik Lee ,  Amir Said ,  Hilmi Enes Egilmez ,  Antonio Ortega

IPC: H04N19/122 ,  H04N19/105 ,  H04N19/176 ,  H04N19/61 ,  H04N19/625 ,  H04N19/82

Abstract: A method and a device for decoding a video signal using an adaptive separable graph-based transform. The method includes: receiving a transform index for a target block from the video signal in which the transform index indicates a graph-based transform to be applied to the target block; deriving a graph-based transform kernel corresponding to the transform index; and decoding the target block based on the graph-based transform kernel. The device includes: a parsing unit configured to receive a transform index for a target block from the video signal; and an inverse-transform unit configured to derive a graph-based transform kernel corresponding to the transform index and decode the target block based on the graph-based transform kernel.

公开(公告)号：US10567755B2

公开(公告)日：2020-02-18

申请号：US15324305

申请日：2015-07-06

Applicant: LG ELECTRONICS INC.

Inventor： Eunyong Son ,  Sehoon Yea

IPC: H04N19/105 ,  H04N19/117 ,  H04N19/44 ,  H04N19/137 ,  H04N19/176 ,  H04N19/18

Abstract: The present invention relates to a method for decoding a video signal, and an apparatus therefor, the method comprising the steps of: obtaining at least one first reference sample from a first reference picture which is different from a picture containing a current block; generating a first reference sample which is filtered by applying a filter to the obtained first reference sample; generating a reference sample array from the difference between the obtained first reference sample and the filtered first reference sample; obtaining first disparity vector information from the video signal; obtaining a first prediction sample from the generated reference sample array on the basis of the first disparity vector information; and restoring the current block on the basis of the first prediction sample.