公开(公告)号：US20180176592A1

公开(公告)日：2018-06-21

申请号：US15737037

申请日：2015-12-09

Applicant: LG Electronics Inc.

Inventor： Jaehyun LIM ,  Seungwook PARK ,  Junghak NAM

IPC: H04N19/513 ,  H04N19/46 ,  H04N19/176

Abstract: A block prediction method for decoding a picture, according to the present invention, comprises the steps of: deriving a reference block from a reference picture to predict a current block in a current picture; determining a reference illumination compensation (IC) parameter; generating an illumination-compensated reference block by applying reference IC to the reference block on the basis of the reference IC parameter; and generating a predicted sample of the current block on the basis of the illumination-compensated reference block. According to the present invention, an illumination difference between the current block of the current picture and the reference block of the reference picture can be compensated for, block prediction efficiency can be increased, and a data amount of a residual signal to be transmitted from an encoder to a decoder is reduced. Therefore, compression and coding efficiency can be increased.

公开(公告)号：US20180131939A1

公开(公告)日：2018-05-10

申请号：US15860412

申请日：2018-01-02

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/13 ,  H04N21/6336 ,  H04N19/91 ,  H04N19/436 ,  H04N19/124

CPC classification number: H04N19/13 ,  H04N19/124 ,  H04N19/436 ,  H04N19/91 ,  H04N21/6336

Abstract: The present invention relates to video encoding and decoding method and apparatus, and a video encoding method according to the present invention comprises the steps of: entropy-encoding quantized transform information; and transmitting the entropy-encoded information as a bitstream, wherein the bitstream includes information indicating pieces of information to be parallel decoded in byte units.

公开(公告)号：US20180103265A1

公开(公告)日：2018-04-12

申请号：US15836462

申请日：2017-12-08

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/513 ,  H04N19/583 ,  H04N19/51

Abstract: The method for deriving a temporal motion vector predictor according to the present invention comprises the steps of: selecting a reference picture for a current block; deciding a predictor block corresponding to a predetermined storage unit block, as a reference prediction unit for the current block, in the reference picture; and deriving the temporal motion vector predictor from motion information of the decided reference prediction unit. The present invention enhances image compression efficiency.

公开(公告)号：US20180048895A1

公开(公告)日：2018-02-15

申请号：US15552366

申请日：2016-03-16

Applicant: LG Electronics Inc.

Inventor： Yongjoon JEON ,  Seungwook PARK ,  Eunyong SON ,  Moonmo KOO

IPC: H04N19/159 ,  H04N19/139 ,  H04N19/105 ,  H04N19/196 ,  H04N19/176 ,  H04N19/167

CPC classification number: H04N19/159 ,  H04N19/105 ,  H04N19/119 ,  H04N19/139 ,  H04N19/167 ,  H04N19/176 ,  H04N19/196 ,  H04N19/197 ,  H04N19/463 ,  H04N19/70 ,  H04N19/96

Abstract: The present invention relates to a method and a device for decoding a bitstream for a video signal, the method comprising the steps of: determining whether at least one neighboring block adjacent to a current block is divided into a plurality of coding blocks within a picture including the current block; if the at least one neighboring block is not divided, obtaining, from the bitstream, flag information indicating whether parameter information for the current block is induced from one of the at least one neighboring block, and inducing the parameter information for the current block from a specific neighboring block among the at least one neighboring block, on the basis of the flag information; obtaining the parameter information for the current block from the bitstream if all of the at least one neighboring block is divided; and decoding the current block on the basis of the parameter information for the current block.

公开(公告)号：US20180035112A1

公开(公告)日：2018-02-01

申请号：US15550347

申请日：2016-02-03

Applicant: LG Electronics Inc.

Inventor： Chulkeun KIM ,  Junghak NAM ,  Seungwook PARK ,  Sehoon YEA

IPC: H04N19/117 ,  H04N19/196 ,  H04N19/159 ,  H04N19/82 ,  H04N19/176

CPC classification number: H04N19/117 ,  H04N19/159 ,  H04N19/176 ,  H04N19/196 ,  H04N19/523 ,  H04N19/59 ,  H04N19/70 ,  H04N19/80 ,  H04N19/82

Abstract: Disclosed is a method for decoding a video signal, including deriving position information of an integer sample within a target block, performing non-uniform interpolation filtering on the integer sample based on the position information of the integer sample, deriving an interpolation sample value according to a result of the non-uniform interpolation filtering, and obtaining a prediction sample value using the interpolation sample value, wherein the non-uniform interpolation filtering is different in at least one of a phase interval or the number of interpolation samples, the phase interval represents an interval between interpolation samples, and the number of interpolation samples represents the number of interpolation samples generated between integer samples.

公开(公告)号：US20170142422A1

公开(公告)日：2017-05-18

申请号：US15412143

申请日：2017-01-23

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/159 ,  H04N19/11

CPC classification number: H04N19/159 ,  H04N19/11 ,  H04N19/176 ,  H04N19/44 ,  H04N19/593 ,  H04N19/96

Abstract: A method for decoding an image according to the present invention comprises the steps of: receiving and decoding MPM index information for indicating an MPM candidate which is to be used as an intra prediction mode of a current block; generating an MPM candidate list containing a plurality of MPM candidates for the current block; determining the MPM candidate indicated by the decoded MPM index information as the intra prediction mode of the current block, among the plurality of the MPM candidates which constitute the MPM candidate list; and generating a prediction block corresponding to the current block by performing intra prediction for the current block based on the determined intra prediction mode.

公开(公告)号：US20160249054A1

公开(公告)日：2016-08-25

申请号：US15143719

申请日：2016-05-02

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 ,  H04N19/61 ,  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.

公开(公告)号：US20150341650A1

公开(公告)日：2015-11-26

申请号：US14793242

申请日：2015-07-07

Applicant: LG Electronics Inc.

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

IPC: H04N19/436 ,  H04N19/119 ,  H04N19/174

CPC classification number: H04N19/436 ,  H04N19/119 ,  H04N19/174 ,  H04N19/70

Abstract: The present invention relates to a video encoding method, a video decoding method, and a device using the same, and the video encoding method according to the present invention comprises the steps of: specifying a tile and a slice by partitioning an inputted picture; performing encoding on the basis of the tile and the slice; and transmitting the encoded video information, wherein the picture is partitioned into one or more tiles and one or more slices, and the restrictions for parallel processing can be applied to the tiles and the slices.

Abstract translation: 视频编码方法及其使用方法技术领域本发明涉及视频编码方法，视频解码方法及使用该方法的装置，根据本发明的视频编码方法包括以下步骤：通过分割输入图像来指定瓦片和切片; 基于瓦片和切片执行编码; 并且发送编码的视频信息，其中将图像划分成一个或多个图块和一个或多个切片，并且并行处理的限制可以应用于图块和切片。

公开(公告)号：US20150229972A1

公开(公告)日：2015-08-13

申请号：US14694499

申请日：2015-04-23

Applicant: LG Electronics Inc.

Inventor： Seungwook PARK ,  Jungsun Kim ,  Yongjoon Jeon ,  Joonyoung Park ,  Byeongmoon Jeon ,  Jaehyun Lim

IPC: H04N19/80 ,  H04N19/44 ,  H04N19/50

CPC classification number: H04N19/80 ,  H04N19/117 ,  H04N19/126 ,  H04N19/13 ,  H04N19/132 ,  H04N19/186 ,  H04N19/44 ,  H04N19/50 ,  H04N19/61 ,  H04N19/70 ,  H04N19/82 ,  H04N19/98

Abstract: The present invention relates to a method for encoding and decoding image information and to an apparatus using same, and the method for encoding the image information, according to the present invention, comprises the steps of: generating a recovery block; applying a deblocking filter to the recovery block; applying a sample adaptive offset (SAO) to the recovery block to which the deblocking filter is applied; and transmitting the image information including information on the SAO which is applied, wherein in the step of transmitting, information for specifying bands that cover a scope of a pixel value, to which a band off set is applied, is transmitted when the band offset is applied during the step of applying the SAO.

Abstract translation: 本发明涉及一种编码和解码图像信息的方法及其使用方法，并且根据本发明的图像信息编码方法包括以下步骤：产生恢复块; 对恢复块应用去块滤波器; 将样本自适应偏移（SAO）应用于应用了去块滤波器的恢复块; 并且发送包括所应用的SAO的信息的图像信息，其中在发送步骤中当频带偏移为带宽偏移时，发送用于指定应用了带宽关闭设置的覆盖所述像素值的范围的频带的信息 在应用SAO的步骤中应用。

公开(公告)号：US20150229947A1

公开(公告)日：2015-08-13

申请号：US14692147

申请日：2015-04-21

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/513 ,  H04N19/176 ,  H04N19/56

CPC classification number: H04N19/513 ,  H04N19/105 ,  H04N19/11 ,  H04N19/139 ,  H04N19/176 ,  H04N19/503 ,  H04N19/517 ,  H04N19/56 ,  H04N19/573 ,  H04N19/58 ,  H04N19/593

Abstract: The present invention relates to the encoding and decoding of image information. According to the present invention, the decoding method comprises the steps of: entropy-decoding received information; performing inter prediction on a current block based on the entropy-decoded information; and restoring images by using the prediction results, wherein, in the inter prediction step, a skip mode or merge mode is applied to the current block and movement information of the current block may be determined based on the movement information of a neighboring block of the current block.

Abstract translation: 本发明涉及图像信息的编码和解码。 根据本发明，解码方法包括以下步骤：熵解码接收的信息; 基于所述熵解码信息对当前块执行帧间预测; 以及通过使用所述预测结果来恢复图像，其中在所述帧间预测步骤中，将跳过模式或合并模式应用于当前块，并且可以基于所述当前块的相邻块的移动信息来确定当前块的移动信息 当前块。