公开(公告)号：US20190104312A1

公开(公告)日：2019-04-04

申请号：US16086162

申请日：2016-03-18

Applicant: LG Electronics Inc.

Inventor： Jaehyun LIM ,  Naeri PARK

IPC: H04N19/139 ,  H04N19/184 ,  H04N19/119 ,  H04N19/176

CPC classification number: H04N19/139 ,  H04N19/103 ,  H04N19/119 ,  H04N19/176 ,  H04N19/184 ,  H04N19/463 ,  H04N19/503

Abstract: A video decoding method performed by a decoding device, according to the present invention, comprises the steps of: deriving at least one reference block for an object block; deriving a partitioned structure of the object block on the basis of a partitioned structure of the at least one reference block; partitioning the object block into a plurality of sub blocks on the basis of the derived partitioned structure; and generating recovered samples by decoding the plurality of sub blocks. According to the present invention, a partitioned structure of a current picture can be derived on the basis of a reference block of a neighboring picture, and thus the amount of data used in the additional information signaled for partitioning of the current picture can be reduced and overall coding efficiency can be improved.

公开(公告)号：US20190068978A1

公开(公告)日：2019-02-28

申请号：US16173825

申请日：2018-10-29

Applicant: LG Electronics Inc.

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

IPC: H04N19/159 ,  H04N19/57 ,  H04N19/52 ,  H04N19/436 ,  H04N19/43 ,  H04N19/176 ,  H04N19/105

Abstract: According to the present invention, an inter prediction method comprises the steps of: generating a merge candidate list for a block to be predicted, wherein the block is to correspond to a current prediction unit; deriving, on the basis of one of a plurality of merge candidates constituting the merge candidate list, motion information on the block to be predicted; and performing, on the basis of the derived motion information, a prediction on the block to be predicted so as to generate a prediction block corresponding to the current prediction unit.

公开(公告)号：US20190007697A1

公开(公告)日：2019-01-03

申请号：US16123648

申请日：2018-09-06

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/52 ,  H04N19/31 ,  H04N19/159 ,  G06T9/00 ,  H04N19/176 ,  H04N19/182

Abstract: The present invention relates to a technique for encoding and decoding video data, and more particularly, to a method for performing inter-prediction in an effective manner. The present invention combines an inter-prediction method using an AMVP mode and an inter-prediction method using a merge mode so as to propose a method for using the same candidate. The method for encoding video data proposed by the present invention comprises the following steps: receiving mode information on an inter-prediction method of a current block; determining, on the basis of the received mode information, whether the interprediction method to be applied to the current block is an AMVP mode or a merge mode; and selecting a candidate to derive motion information of the current block, wherein the candidate is selected in a left region, top region and corner region of the current block and in the same position block as the current block, and the AMVP mode and the merge mode are applied on the basis of the selected candidate.

公开(公告)号：US20180270508A1

公开(公告)日：2018-09-20

申请号：US15757584

申请日：2016-05-13

Applicant: LG Electronics Inc.

Inventor： Jaehyun LIM ,  Naeri PARK ,  Jin HEO

IPC: H04N19/82 ,  H04N19/132 ,  H04N19/176

CPC classification number: H04N19/82 ,  H04N19/105 ,  H04N19/107 ,  H04N19/109 ,  H04N19/117 ,  H04N19/119 ,  H04N19/124 ,  H04N19/132 ,  H04N19/157 ,  H04N19/176 ,  H04N19/61

Abstract: Disclosed are a method for encoding/decoding an image and an apparatus therefor. Specifically, the method for decoding an image may comprise the steps of: performing interpolation filtering of a reference picture; generating predicted samples from samples in the reference picture for which the interpolation filtering has been performed; generating reconstructed samples by adding residual samples and the predicted samples; and performing loop filtering of the reconstructed samples, wherein whether the predicted samples have been generated by applying a predetermined filter when performing the interpolation filtering is determined in units of first blocks; whether the filter is applied to the reconstructed samples is determined in units of second blocks, and whether the filter is applied to the reconstructed samples when performing the loop filtering is determined on the basis of whether the filter has been applied to the predicted samples when performing the interpolation filtering.

公开(公告)号：US20180167610A1

公开(公告)日：2018-06-14

申请号：US15580873

申请日：2016-04-22

Applicant: LG Electronics Inc.

Inventor： Seoungwook PARK ,  Jaehyun LIM ,  Yongjoon JEON ,  Eunyong SON

IPC: H04N19/105 ,  H04N19/513 ,  H04N19/139 ,  H04N19/70

CPC classification number: H04N19/105 ,  H04N19/136 ,  H04N19/139 ,  H04N19/176 ,  H04N19/46 ,  H04N19/513 ,  H04N19/59 ,  H04N19/70

Abstract: An inter prediction method according to the present invention, which is performed by a decoding apparatus, comprises the steps of: configuring a reference picture set for a current picture; generating a virtual reference picture corresponding to an original reference picture in the reference picture set; deriving a motion vector for a current block in the current picture; and generating a prediction sample for the current block on the basis of the motion vector and the virtual reference picture. According to the present invention, the performance of inter prediction can be enhanced on the basis of a virtual reference picture having higher correlation with a current picture, and accordingly the amount of data allocated to a residual signal can be reduced and the overall coding efficiency can be improved.

公开(公告)号：US20180160137A1

公开(公告)日：2018-06-07

申请号：US15883280

申请日：2018-01-30

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 ,  H04N19/58 ,  H04N19/573 ,  H04N19/11 ,  H04N19/593 ,  H04N19/517 ,  H04N19/56 ,  H04N19/176 ,  H04N19/139 ,  H04N19/503 ,  H04N19/105

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.

公开(公告)号：US20180077425A1

公开(公告)日：2018-03-15

申请号：US15804588

申请日：2017-11-06

Applicant: LG ELECTRONICS INC.

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

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

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：US20170347118A1

公开(公告)日：2017-11-30

申请号：US15676129

申请日：2017-08-14

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/593 ,  H04N19/85 ,  H04N19/80 ,  H04N19/61 ,  H04N19/182 ,  H04N19/176 ,  H04N19/117 ,  H04N19/91 ,  H04N19/11

CPC classification number: H04N19/593 ,  H04N19/11 ,  H04N19/117 ,  H04N19/176 ,  H04N19/182 ,  H04N19/61 ,  H04N19/80 ,  H04N19/85 ,  H04N19/91

Abstract: Disclosed are an intra-prediction method using filtering and an apparatus using the method. An image-decoding method comprises: a step of filtering an n upper reference pixel of a block to be predicted and neighboring pixels of the n upper reference pixel so as to obtain the filtered n upper reference pixel; and a step of filtering an n left reference pixel of a block to be predicted and neighboring pixels of the n left reference pixel so as to obtain the filtered n left reference pixel. According to the present invention, intra-prediction may be efficiently performed to improve image-encoding/decoding efficiency.

公开(公告)号：US20170316276A1

公开(公告)日：2017-11-02

申请号：US15649906

申请日：2017-07-14

Applicant: LG ELECTRONICS INC.

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

IPC: G06K9/36 ,  H04N19/80 ,  H04N19/593 ,  H04N19/44 ,  H04N19/11 ,  H04N19/182 ,  H04N19/157 ,  H04N19/14 ,  H04N19/82 ,  H04N19/50

CPC classification number: G06K9/36 ,  H04N19/11 ,  H04N19/14 ,  H04N19/157 ,  H04N19/182 ,  H04N19/44 ,  H04N19/50 ,  H04N19/593 ,  H04N19/80 ,  H04N19/82

Abstract: New intra planar modes are introduced for predicting digital video data. As part of the new intra planar modes, various methods are offered for predicting a first sample within a prediction unit, where the first sample is needed for referencing to when processing the new intra planar modes. And once the first sample is successfully predicted, the new intra planar modes are able to predict a sample of video data within the prediction unit by processing a bi-linear interpolation of four previously reconstructed reference samples.

公开(公告)号：US20170078688A1

公开(公告)日：2017-03-16

申请号：US15342996

申请日：2016-11-03

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 ,  H04N19/109 ,  H04N19/176

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。