公开(公告)号：US10687073B2

公开(公告)日：2020-06-16

申请号：US15769261

申请日：2016-10-24

Applicant: LG ELECTRONICS INC.

Inventor： Jungdong Seo ,  Jaehyun Lim ,  Naeri Park

IPC: H04N19/51 ,  H04N19/176 ,  H04N19/119 ,  H04N19/137 ,  H04N19/157 ,  H04N19/172 ,  H04N19/174 ,  H04N19/46 ,  H04N19/70

Abstract: Disclosed are a method for encoding/decoding an image and a device therefor. Particularly, a method by which a decoding device decodes an image comprises the steps of: deriving a part mode of a coding block within a predefined part mode set; decoding a motion parameter in a prediction block unit partitioned from the coding block according to the part mode; and generating a predicted block by using the motion parameter decoded in the prediction block unit, wherein the part mode set includes an asymmetric 4-block part mode, the asymmetric 4-block part mode enables four prediction blocks to be partitioned from the coding block, and a horizontal partition and/or a vertical partition can be defined as an asymmetric partition form.

公开(公告)号：US10666969B2

公开(公告)日：2020-05-26

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: G06K9/36 ,  H04N19/52 ,  G06T9/00 ,  H04N19/176 ,  H04N19/182 ,  H04N19/159 ,  H04N19/31

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：US10652551B2

公开(公告)日：2020-05-12

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 ,  H04N19/52 ,  H04N19/43 ,  H04N19/436 ,  H04N19/57 ,  H04N19/105 ,  H04N19/176

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：US20200092573A1

公开(公告)日：2020-03-19

申请号：US16676135

申请日：2019-11-06

Applicant: LG ELECTRONICS INC.

Inventor： Joongyoung Park ,  Sangchul Kim ,  Seungwook Park ,  Jaehyun Lim ,  Yongjoon Jeon ,  Byeongmoon Jeon ,  Younghee Choi ,  Jaewon Sung ,  Jungsun Kim ,  Jingyeong Kim ,  Taeil Chung

IPC: H04N19/513 ,  H04N19/51 ,  H04N19/105 ,  H04N19/167 ,  H04N19/176 ,  H04N19/583

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：US20200021807A1

公开(公告)日：2020-01-16

申请号：US16509745

申请日：2019-07-12

Applicant: LG ELECTRONICS INC.

Inventor： Seunghwan Kim ,  Ling Li ,  Jaehyun Lim

IPC: H04N19/11 ,  H04N19/593 ,  H04N19/176

Abstract: Provided is a decoding method performed by a decoding apparatus, which includes: obtaining intra prediction information of the current block through a bitstream; deriving an intra prediction mode of the current block based on remaining intra prediction mode information; deriving a prediction sample of the current block based on the intra prediction mode; and deriving a reconstructed picture based on the prediction sample, in which the intra prediction information includes the remaining intra prediction mode information, and the remaining intra prediction mode information is coded through a truncated binary (TB) binarization process.

公开(公告)号：US10402674B2

公开(公告)日：2019-09-03

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 ,  H04N19/50 ,  H04N19/593 ,  H04N19/11 ,  H04N19/14 ,  H04N19/157 ,  H04N19/182 ,  H04N19/44 ,  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：US10356414B2

公开(公告)日：2019-07-16

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: H04N5/92 ,  H04N7/32 ,  G11B20/10 ,  H04N19/174 ,  G06K9/36 ,  H04N19/13 ,  H04N21/6336 ,  H04N19/91 ,  H04N19/436 ,  H04N19/124

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：US10321156B2

公开(公告)日：2019-06-11

申请号：US15915211

申请日：2018-03-08

Applicant: LG Electronics Inc.

Inventor： Jungsun Kim ,  Seungwook Park ,  Jaehyun Lim ,  Joonyoung Park ,  Younghee Choi ,  Jaewon Sung ,  Byeongmoon Jeon ,  Yongjoon Jeon

IPC: H04N19/11 ,  H04N19/593 ,  H04N19/176 ,  H04N19/70 ,  H04N19/122 ,  H04N19/61 ,  H04N19/186 ,  H04N19/157 ,  H04N19/80 ,  H04N19/196 ,  H04N19/107 ,  H04N19/172 ,  H04N19/174 ,  H04N19/59 ,  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.

公开(公告)号：US10298962B2

公开(公告)日：2019-05-21

申请号：US15962939

申请日：2018-04-25

Applicant: LG ELECTRONICS INC.

Inventor： Seungwook Park ,  Jaehyun Lim ,  Yongjoon Jeon ,  Chulkeun Kim ,  Jungsun Kim ,  Naeri Park ,  Hendry Hendry ,  Byeongmoon Jeon ,  Joonyoung Park

IPC: H04N19/86 ,  H04N19/61 ,  H04N19/176 ,  H04N19/60 ,  H04N19/159 ,  H04N19/134 ,  H04N19/117 ,  H04N19/14 ,  H04N19/82 ,  H04N19/136 ,  H04N19/196 ,  H04N19/172 ,  G06T5/00

Abstract: The present invention relates to a deblocking filtering method, a method for inducing bs (boundary strength) therefor, and a method and an apparatus for encoding/decoding using the same. The method for inducing the bS of the present invention comprises the steps of: inducing a boundary of a deblocking filtering unit block as a unit block for applying the deblocking filtering; and setting the bS according to each bS setting unit block within the deblocking filtering unit block, wherein the bS setting step can set a bS value for a target boundary corresponding to a boundary of the deblocking filtering unit block as the bs setting unit block.

公开(公告)号：US10212453B2

公开(公告)日：2019-02-19

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 ,  H04N19/61 ,  H04N19/11 ,  H04N19/91 ,  H04N19/182 ,  H04N19/80 ,  H04N19/85 ,  H04N19/117 ,  H04N19/176

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.