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：US20250159210A1

公开(公告)日：2025-05-15

申请号：US19022299

申请日：2025-01-15

Applicant: LG ELECTRONICS INC.

Inventor： Jangwon Choi ,  Jin Heo ,  Seunghwan Kim ,  Sunmi Yoo ,  Ling Li ,  Jungah Choi

IPC: H04N19/186 ,  H04N19/105 ,  H04N19/136 ,  H04N19/176

Abstract: A video decoding method performed by a decoding apparatus according to the present disclosure includes deriving one of a plurality of cross-component linear model (CCLM) prediction mode as a CCLM prediction mode of the current chroma block, deriving a sample number of neighboring chroma samples of the current chroma block based on the CCLM prediction mode of the current chroma block, a size of the current chroma block, and a specific value; deriving the neighboring chroma samples of the sample number, calculating CCLM parameters based on the neighboring chroma samples and the down sampled neighboring luma samples, deriving prediction samples for the current chroma block based on the CCLM parameters and the down sampled luma samples and generating reconstructed samples for the current chroma block based on the prediction samples, wherein the specific value is derived as 2.

公开(公告)号：US12284340B2

公开(公告)日：2025-04-22

申请号：US18644829

申请日：2024-04-24

Applicant: LG ELECTRONICS INC.

Inventor： Sunmi Yoo ,  Jaeho Lee ,  Jangwon Choi ,  Jungdong Seo ,  Jin Heo

IPC: H04N19/11 ,  H04N19/117 ,  H04N19/176 ,  H04N19/82

Abstract: A method by which a decoding device performs image decoding, according to the present invention, comprises the steps of: deriving an intra prediction mode of a current block; deriving neighboring samples including left neighboring samples and upper neighboring samples of the current block; deriving reference samples for prediction of a target sample among the neighboring samples on the basis of the position of the target sample of the current block and the prediction angle of the intra prediction mode; determining an interpolation filter for the target sample; and deriving the prediction sample of the target sample on the basis of the interpolation filter and the reference samples.

公开(公告)号：US12256069B2

公开(公告)日：2025-03-18

申请号：US18411897

申请日：2024-01-12

Applicant: LG ELECTRONICS INC.

Inventor： Jangwon Choi ,  Jin Heo ,  Summi Yoo ,  Jungah Choi ,  Seung Hwan Kim

IPC: H04N19/119 ,  H04N19/176 ,  H04N19/186 ,  H04N19/96

Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method performed by an image decoding apparatus includes determining a splitting type of a current block, splitting the current block into a plurality of lower-layer blocks based on the splitting type, and decoding the lower-layer blocks. In this case, the current block may be a chroma block, and the determining the splitting type of the current block may be performed by disallowing a predetermined type, in which a width or height of the lower-layer blocks is a predetermined value, among a plurality of splitting types.

公开(公告)号：US12250407B2

公开(公告)日：2025-03-11

申请号：US17916466

申请日：2021-03-30

Applicant: LG Electronics Inc.

Inventor： Jungah Choi ,  Sunmi Yoo ,  Junghak Nam ,  Jin Heo ,  Jangwon Choi ,  Seunghwan Kim

IPC: H04N19/60 ,  H04N19/11 ,  H04N19/124 ,  H04N19/176

Abstract: A method by which a decoding device decodes an image, according to the present document, comprises the steps of: acquiring a dependent quantization available flag about whether dependent quantization is available; acquiring a sign data hiding available flag about whether sign data hiding is available; and acquiring, on the basis of the dependent quantization available flag and the sign data hiding available flag, a transform skip residual coding (TSRC) available flag about whether TSRC is available.

公开(公告)号：US12177423B2

公开(公告)日：2024-12-24

申请号：US18538463

申请日：2023-12-13

Applicant: LG ELECTRONICS INC.

Inventor： Jin Heo ,  Seunghwan Kim ,  Ling Li

IPC: H04N19/105 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176

Abstract: An image decoding method according to the present disclosure comprises deriving a first candidate intra prediction mode based on a first neighboring block of a current block; deriving a second candidate intra prediction mode based on a second neighboring block of the current block; constructing MPM (Most Probable Mode) list of the current block based on the first candidate intra prediction mode and the second candidate intra prediction mode; deriving an intra prediction mode for the current block based on the MPM list; and generating a prediction sample for the current block based on the intra prediction mode, wherein the first neighboring block is a left neighboring block located at the lowermost side among neighboring blocks adjacent to a left boundary of the current block, and wherein the second neighboring block is an upper neighboring block located at the rightmost side among neighboring blocks adjacent to an upper boundary of the current block.

公开(公告)号：US12170792B2

公开(公告)日：2024-12-17

申请号：US18396644

申请日：2023-12-26

Applicant: LG ELECTRONICS INC.

Inventor： Jungah Choi ,  Sunmi Yoo ,  Jin Heo ,  Ling Li ,  Jangwon Choi ,  Seunghwan Kim

IPC: H04N19/64 ,  H04N19/124 ,  H04N19/13 ,  H04N19/176 ,  H04N19/70 ,  H04N19/91 ,  H04N19/513 ,  H04N19/61

Abstract: An image decoding method performed by a decoding apparatus according to the present disclosure includes receiving a bitstream including residual information; deriving quantized transform coefficients for a current block based on the residual information included in the bitstream; deriving residual samples for the current block based on the quantized transform coefficients; and generating a reconstructed picture based on the residual samples for the current block.

公开(公告)号：US20240406411A1

公开(公告)日：2024-12-05

申请号：US18670978

申请日：2024-05-22

Applicant: LG ELECTRONICS INC.

Inventor： Jin Heo ,  Yongjoon Jeon ,  Sunmi Yoo ,  Eunyong Son ,  Junghak Nam

IPC: H04N19/159 ,  H04N19/107 ,  H04N19/119 ,  H04N19/176 ,  H04N19/593

Abstract: In the present invention, a method for processing an image on the basis of an intra prediction mode and an apparatus therefor are disclosed. Particularly, the method for processing an image on the basis of an intra prediction mode may comprise the steps of: partitioning a block to be processed, on the basis of an intra prediction mode of the block to be processed; and performing intra prediction for the split block to be processed, wherein the direction in which the block to be processed is split is perpendicular to the prediction direction of the intra prediction mode of the block to be processed.

公开(公告)号：US12149679B2

公开(公告)日：2024-11-19

申请号：US17438567

申请日：2019-11-14

Applicant: LG Electronics Inc.

Inventor： Jangwon Choi ,  Jaehyun Lim ,  Jin Heo ,  Ling Li ,  Seunghwan Kim

IPC: H04N19/105 ,  H04N19/132 ,  H04N19/167 ,  H04N19/176 ,  H04N19/593

Abstract: An image decoding method performed by a decoding device according to the present document comprises the steps of: obtaining reference line index information and prediction information for a current block; determining an intra prediction mode of the current block on the basis of the prediction information; deriving a reference sample of the current block on the basis of the intra prediction mode and the reference line index information; and generating a prediction sample of the current block on the basis of the reference sample, wherein the intra prediction mode includes a non-directional intra prediction mode, and the reference sample is derived from among surrounding samples of the current block on the basis of the non-directional intra prediction mode and the reference line index information.