公开(公告)号：US20180338144A1

公开(公告)日：2018-11-22

申请号：US15777847

申请日：2016-11-22

Applicant: LG ELECTRONICS INC.

Inventor： Junghak NAM ,  Jin HEO ,  Seungwook PARK

IPC: H04N19/13 ,  H04N19/174 ,  H04N19/149 ,  H04N19/70

CPC classification number: H04N19/13 ,  H04N19/174 ,  H04N19/176 ,  H04N19/70 ,  H04N19/91

Abstract: The present invention provides a method of performing an entropy decoding for a video signal including obtaining a context model initial value for a current slice; calculating a probability value based on syntax statistics of a previous slice; deriving weighted values corresponding to the context model initial value for the current slice and the syntax statistics of the previous slice; and updating the context model initial value for the current slice using the weighted values.

公开(公告)号：US20180302646A1

公开(公告)日：2018-10-18

申请号：US15963787

申请日：2018-04-26

Applicant: LG Electronics Inc.

Inventor： Jaehyun LIM ,  Seungwook PARK ,  Yongjoon JEON ,  Jungsun KIM ,  Hendry HENDRY ,  Byeongmoon JEON ,  Joonyoung PARK ,  Chulkeun KIM ,  Naeri PARK

IPC: H04N19/593 ,  H04N19/426 ,  H04N19/174 ,  H04N19/129 ,  H04N19/625 ,  H04N19/82 ,  H04N19/117 ,  H04N19/122 ,  H04N19/124 ,  H04N19/96 ,  H04N19/13 ,  H04N19/159 ,  H04N19/44 ,  H04N19/61 ,  H04N19/463 ,  H04N19/11 ,  H04N19/176

CPC classification number: H04N19/593 ,  H04N19/11 ,  H04N19/117 ,  H04N19/122 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/426 ,  H04N19/44 ,  H04N19/463 ,  H04N19/61 ,  H04N19/625 ,  H04N19/82 ,  H04N19/96

Abstract: A method for intra prediction comprises determining a first MPM candidate corresponding to a left-side candidate block on the basis of a position of the left-side candidate block adjacent to a left side of a current block; determining a second MPM candidate corresponding to an upper-end candidate block on the basis of a position of the upper-end candidate block adjacent to an upper end of the current block; generating an MPM candidate list including a plurality of MPM candidates, on the basis of the first MPM candidate and the second MPM candidate; and determining one MPM candidate of the plurality of the MPM candidates that constitute the MPM candidate list as an intra prediction mode of the current block, and performing intra prediction for the current block on the basis of the determined intra prediction mode to generate a prediction block corresponding to the current block.

公开(公告)号：US20180295384A1

公开(公告)日：2018-10-11

申请号：US15762946

申请日：2016-09-08

Applicant: LG ELECTRONICS INC.

Inventor： Eunyong SON ,  Jin HEO ,  Seungwook PARK ,  Sehoon YEA

IPC: H04N19/61 ,  H04N19/105 ,  H04N19/11 ,  H04N19/176 ,  H04N19/44 ,  H04N19/96

CPC classification number: H04N19/61 ,  H04N19/105 ,  H04N19/11 ,  H04N19/176 ,  H04N19/182 ,  H04N19/196 ,  H04N19/44 ,  H04N19/96

Abstract: An intra prediction method includes: receiving intra prediction mode information through a bitstream; deriving an intra prediction mode of a current block as a first intra directional mode on the basis of the intra prediction mode information; deriving first neighboring samples of the current block; deriving a reference sample adjacent to a target sample in the current block on the basis of a prediction direction of the first intra directional mode; deriving second neighboring samples of a neighboring block to which the reference sample belongs; determining a modified prediction direction on the basis of a comparison between the reference sample and at least one of the second neighboring samples; and deriving a prediction value for the target sample on the basis of the modified prediction direction and the first neighboring samples.

公开(公告)号：US20180242018A1

公开(公告)日：2018-08-23

申请号：US15923740

申请日：2018-03-16

Applicant: LG Electronics Inc.

Inventor： Jaehyun LIM ,  Seungwook PARK ,  Yongjoon JEON ,  Chulkeun KIM ,  Jungsun KIM ,  Naeri PARK ,  Hendry HENDRY ,  Byeongmoon JEON ,  Joonyoung PARK

IPC: H04N19/61 ,  H04N19/86 ,  H04N19/82 ,  H04N19/124 ,  H04N19/13 ,  H04N19/182 ,  H04N19/176

Abstract: A method for image decoding, according to the present invention, includes the following steps: receiving image information including a plurality of filter coefficients; generating a restored block for a current block on the basis of the image information; and applying an adaptive loop filter to the restored block on the basis of the plurality of filter coefficients. According to the present invention, image encoding efficiency may be improved, arid complexity may be reduced.

公开(公告)号：US20180213224A1

公开(公告)日：2018-07-26

申请号：US15746139

申请日：2016-04-22

Applicant: LG Electronics Inc.

Inventor： Eunyong SON ,  Yongjoon JEON ,  Jin HEO ,  Seungwook PARK ,  Moonmo KOO ,  Hyeongmoon JANG

IPC: H04N19/11 ,  H04N19/124 ,  H04N19/159 ,  H04N19/176 ,  H04N19/96 ,  H04N19/52

CPC classification number: H04N19/11 ,  H04N19/124 ,  H04N19/159 ,  H04N19/176 ,  H04N19/52 ,  H04N19/593 ,  H04N19/96

Abstract: An intra prediction method performed by a decoding device, according to the present invention, comprises the steps of: deriving an intra prediction mode for a current block; deriving neighboring samples of the current block; and generating a prediction sample for the current block by using at least one of the neighboring samples according to the intra prediction mode, wherein the derived neighboring samples include left neighboring samples, upper left neighboring samples, upper neighboring samples, right neighboring samples, lower right neighboring samples, and lower neighboring samples of the current block. According to the present invention, intra prediction performance can be improved by using expanded neighboring reference samples, and coding efficiency for CUs can be improved.

公开(公告)号：US20170289569A1

公开(公告)日：2017-10-05

申请号：US15629405

申请日：2017-06-21

Applicant: LG ELECTRONICS INC.

Inventor： Joonyoung PARK ,  Seungwook PARK ,  Jaehyun LIM ,  Jungsun KIM ,  Younghee CHOI ,  Jaewon SUNG ,  Byeongmoon JEON ,  Yongjoon JEON

IPC: H04N19/52 ,  H04N19/577 ,  H04N19/513 ,  H04N19/11 ,  H04N19/176 ,  H04N19/51 ,  H04N19/50 ,  H04N19/109

CPC classification number: H04N19/52 ,  H04N19/109 ,  H04N19/11 ,  H04N19/176 ,  H04N19/426 ,  H04N19/463 ,  H04N19/50 ,  H04N19/51 ,  H04N19/521 ,  H04N19/577

Abstract: A motion information storing method and a TMVP deriving method using the motion information storing method are provided. The motion information storing method includes a step of determining a representative block out of blocks of a motion data storage unit in a co-located picture with a current picture and a step of storing motion information of the representative block as motion information of the motion data storage unit, wherein the motion information of the representative block is used as motion information of the blocks included in the motion data storage unit.

公开(公告)号：US20160198192A1

公开(公告)日：2016-07-07

申请号：US15070832

申请日：2016-03-15

Applicant: LG Electronics Inc.

Inventor： Jaehyun LIM ,  Seungwook PARK ,  Yongjoon JEON ,  Jungsun KIM ,  Hendry HENDRY ,  Byeongmoon JEON ,  Joonyoung PARK ,  Chulkeun KIM ,  Naeri PARK

IPC: H04N19/593 ,  H04N19/159 ,  H04N19/11 ,  H04N19/96 ,  H04N19/13 ,  H04N19/82 ,  H04N19/117 ,  H04N19/129 ,  H04N19/625 ,  H04N19/61 ,  H04N19/122 ,  H04N19/44 ,  H04N19/174 ,  H04N19/124 ,  H04N19/176

CPC classification number: H04N19/593 ,  H04N7/26244 ,  H04N7/50 ,  H04N19/11 ,  H04N19/117 ,  H04N19/122 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/426 ,  H04N19/44 ,  H04N19/463 ,  H04N19/61 ,  H04N19/625 ,  H04N19/82 ,  H04N19/96

Abstract: A method for intra prediction comprises determining a first MPM candidate corresponding to a left-side candidate block on the basis of a position of the left-side candidate block adjacent to a left side of a current block; determining a second MPM candidate corresponding to an upper-end candidate block on the basis of a position of the upper-end candidate block adjacent to an upper end of the current block; generating an MPM candidate list including a plurality of MPM candidates, on the basis of the first MPM candidate and the second MPM candidate; and determining one MPM candidate of the pluraity of the MPM candidates that constitute the MPM candidate list as an intra prediction mode of the current block, and performing intra prediction for the current block on the basis of the determined intra prediction mode to generate a prediction block corresponding to the current block.

Abstract translation: 用于帧内预测的方法包括：基于与当前块的左侧相邻的左侧候选块的位置来确定与左侧候选块相对应的第一MPM候选; 基于与当前块的上端相邻的上位候选块的位置，确定与上位候选块对应的第二MPM候选; 基于所述第一MPM候选和所述第二MPM候选，生成包括多个MPM候选的MPM候选列表; 以及将构成所述MPM候选列表的MPM候选者的一个MPM候选者的一个MPM候选确定为当前块的帧内预测模式，并且基于所确定的帧内预测模式对当前块进行帧内预测，​​以生成预测块 对应于当前块。

公开(公告)号：US20150358639A1

公开(公告)日：2015-12-10

申请号：US14830403

申请日：2015-08-19

Applicant: LG ELECTRONICS INC.

Inventor： Joonyoung PARK ,  Seungwook PARK ,  Jaehyun LIM ,  Jungsun KIM ,  Younghee CHOI ,  Jaewon SUNG ,  Byeongmoon JEON ,  Yongjoon JEON

IPC: H04N19/52 ,  H04N19/513 ,  H04N19/577

CPC classification number: H04N19/52 ,  H04N19/109 ,  H04N19/11 ,  H04N19/176 ,  H04N19/426 ,  H04N19/463 ,  H04N19/50 ,  H04N19/51 ,  H04N19/521 ,  H04N19/577

Abstract: A motion information storing method and a TMVP deriving method using the motion information storing method are provided. The motion information storing method includes a step of determining a representative block out of blocks of a motion data storage unit in a co-located picture with a current picture and a step of storing motion information of the representative block as motion information of the motion data storage unit, wherein the motion information of the representative block is used as motion information of the blocks included in the motion data storage unit.

Abstract translation: 提供了使用运动信息存储方法的运动信息存储方法和TMVP推导方法。 运动信息存储方法包括以下步骤：利用当前画面确定与位于同一画面中的运动数据存储单元的块中的代表块，以及存储代表块的运动信息作为运动数据的运动信息的步骤 存储单元，其中代表块的运动信息用作运动数据存储单元中包括的块的运动信息。

公开(公告)号：US20150163494A1

公开(公告)日：2015-06-11

申请号：US14624739

申请日：2015-02-18

Applicant: LG ELECTRONICS INC.

Inventor： Seungwook PARK ,  Joonyoung PARK ,  Jungsun KIM ,  Younghee CHOI ,  Yongjoon JEON ,  Jaewon SUNG ,  Byeongmoon JEON ,  Jaehyun LIM

IPC: H04N19/139 ,  H04N19/159 ,  H04N19/513 ,  H04N19/56 ,  H04N19/105 ,  H04N19/167

CPC classification number: H04N19/139 ,  H04N19/105 ,  H04N19/159 ,  H04N19/167 ,  H04N19/51 ,  H04N19/521 ,  H04N19/56 ,  H04N19/61 ,  H04N19/96

Abstract: The present invention discloses a method and apparatus for encoding or decoding a video signal. The method for processing a video signal according to the present invention uses a merging mode in which prediction information on a neighbor unit is used instead of transmitting prediction information on the present unit, so as to improve coding efficiency. In this case, the number of available candidate units for merging among the units in a predetermined position is determined, and information for the merging mode is acquired on the basis of the number of the available candidate units for merging. The unit to be merged is determined using the information for the merging mode, and prediction information on the unit to be merged is acquired. The prediction value for the present unit is acquired using the prediction information on the unit to be merged, and the present unit is restored using the acquired prediction value.

Abstract translation: 本发明公开了一种用于对视频信号进行编码或解码的方法和装置。 根据本发明的用于处理视频信号的方法使用其中使用相邻单元的预测信息而不是在本单元上发送预测信息的合并模式，以便提高编码效率。 在这种情况下，确定用于在预定位置的单元之间合并的可用候选单元的数量，并且基于用于合并的可用候选单元的数量来获取用于合并模式的信息。 使用合并模式的信息确定要合并的单位，并且获取关于要合并的单元的预测信息。 使用关于要合并的单位的预测信息来获取本单元的预测值，并且使用所获取的预测值来恢复本单元。

公开(公告)号：US20150071352A1

公开(公告)日：2015-03-12

申请号：US14478586

申请日：2014-09-05

Applicant: LG Electronics Inc.

Inventor： Jungsun KIM ,  Seungwook PARK ,  Jaehyun LIM ,  Joonyoung PARK ,  Younghee CHOI ,  Jaewon SUNG ,  Byeongmoon JEON ,  Yongjoon JEON

IPC: H04N19/107 ,  H04N19/186 ,  H04N19/11 ,  H04N19/176

CPC classification number: H04N19/593 ,  H04N19/107 ,  H04N19/11 ,  H04N19/122 ,  H04N19/157 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186 ,  H04N19/196 ,  H04N19/59 ,  H04N19/61 ,  H04N19/70 ,  H04N19/80 ,  H04N19/96

Abstract: A method for signalling an intra chroma prediction mode and a method for implementing the signalled intra chroma prediction mode, the intra chroma prediction mode taking an intropolation of previously predicted luma samples from neighboring blocks of video data to attain an intra chroma prediction of a current chroma prediction unit.

Abstract translation: 一种用于信令帧内色度预测模式的信号的方法和用于实现信号内色差预测模式的方法，内部色度预测模式采用从相邻视频数据块预先预测的亮度样本的内插来获得当前色度的内部色度预测 预测单位。