公开(公告)号：US10715825B2

公开(公告)日：2020-07-14

申请号：US16256533

申请日：2019-01-24

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

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：US20200162752A1

公开(公告)日：2020-05-21

申请号：US16773704

申请日：2020-01-27

Applicant: LG Electronics Inc.

Inventor： Hendry Hendry ,  Yongjoon Jeon ,  Chulkeun Kim ,  Jungsun Kim ,  Byeongmoon Jeon ,  Joonyoung Park

IPC: H04N19/44 ,  H04N19/105 ,  H04N19/70 ,  H04N19/172 ,  H04N19/463 ,  H04N19/174 ,  H04N19/157 ,  H04N19/176 ,  H04N19/587 ,  H04N19/523 ,  H04N19/58

Abstract: Disclosed is a video decoding method that decodes a bitstream, the method including receiving a picture parameter set (PPS) comprising at least one of first information indicating whether the same reference picture list is applied to slices comprised in a picture and second information indicating whether additional information on modification of the reference picture list is present, and deriving a construction of the reference picture list based on the PPS. Accordingly, there are provided a method and an apparatus for signaling by a picture whether the construction of the reference picture list is modified when constructing the reference picture list.

公开(公告)号：US10602189B2

公开(公告)日：2020-03-24

申请号：US16056087

申请日：2018-08-06

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry ,  Yongjoon Jeon ,  Chulkeun Kim ,  Sangoh Jeong ,  Byeongmoon Jeon ,  Jungsun Kim

IPC: H04N19/46 ,  H04N21/2387 ,  H04N19/70 ,  H04N19/31 ,  H04N19/44 ,  H04N19/169 ,  H04N19/50

Abstract: Disclosed are a method and apparatus for encoding/decoding images. The image-decoding method comprises the steps of: receiving a bit stream including information regarding an NAL unit type; and checking whether or not the NAL unit in the bit stream is a reference picture based on said information regarding an NAL unit type and decoding the NAL unit. The information regarding an NAL unit type indicates whether the NAL unit is a reference reading picture or not a reference reading picture.

公开(公告)号：US20200077097A1

公开(公告)日：2020-03-05

申请号：US16674150

申请日：2019-11-05

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Joonyoung Park ,  Chulkeun Kim ,  Byeongmoon Jeon ,  Jungsun Kim

IPC: H04N19/159 ,  H04N7/00 ,  H04N19/46 ,  H04N19/423 ,  H04N19/70 ,  H04N19/58 ,  H04N19/105 ,  H04N19/172 ,  H04N19/184

Abstract: An image decoding method according to the present invention includes: receiving information on a set of reference pictures for configuring a set of reference pictures of a current picture, wherein the information on the set of reference pictures includes the most significant bit (MSB) information that may calculate the MSB of the picture order count (POC) of a long-term reference picture relative to the current picture, and flag information that represents whether there is MSB information; and eliciting the set of reference pictures by using received MSB information when the flag information is 1, and performing marking on the reference picture, wherein the flag information may be 1 when a temporal sub-layer identifier is 0, and there is at least one POC value for which a remainder obtained by dividing by a maximum value MaxPicOrderCntLsb capable of being represented by the LSB is the same as the least significant bit (LSB) of the POC of the long-term reference picture, in a set of POCs of a previous picture including POC values related to the previous picture that may not be discarded without affecting whether other pictures of the same temporal layer may be decoded.

公开(公告)号：US10531092B2

公开(公告)日：2020-01-07

申请号：US16244848

申请日：2019-01-10

Applicant: LG Electronics Inc.

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

IPC: H04N19/13 ,  H04N19/136 ,  H04N19/50 ,  H04N19/96 ,  H04N19/91 ,  H04N19/44 ,  H04N19/174 ,  H04N19/176

Abstract: The present invention relates to an entropy decoding method which includes: generating context related to a bin that forms a codeword of a syntax element; and performing arithmetic decoding of the bin based on the context.

公开(公告)号：US10469861B2

公开(公告)日：2019-11-05

申请号：US15971724

申请日：2018-05-04

Applicant: LG Electronics Inc.

Inventor： Hendry Hendry ,  Jungsun Kim ,  Chulkeun Kim ,  Byeongmoon Jeon ,  Sangoh Jeong

IPC: H04N19/44 ,  H04N19/70 ,  H04N19/31 ,  H04N19/169

Abstract: The present invention includes an image information decoding method which comprises: a step of receiving a bitstream that includes a network abstraction layer (NAL) unit including information related to an encoded image; and a step of parsing an NAL unit header of the NAL unit. The NAL unit header includes layer information including reserved_one_5bits for identifying an extended layer in an extended bitstream and temporal_id for identifying a temporal layer of a bitstream. The reserved_one_5bits of the layer information is received prior to the temporal_id of the layer information. Thus, a method for describing scalability information in a hierarchical bitstream is provided.

公开(公告)号：US10334272B2

公开(公告)日：2019-06-25

申请号：US15845690

申请日：2017-12-18

Applicant: LG Electronics Inc.

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

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/593 ,  H04N19/176 ,  H04N19/61 ,  H04N19/11 ,  H04N19/463 ,  H04N19/426 ,  H04N19/117 ,  H04N19/122 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13 ,  H04N19/159 ,  H04N19/174 ,  H04N19/44 ,  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：US10218993B2

公开(公告)日：2019-02-26

申请号：US15925169

申请日：2018-03-19

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry ,  Byeongmoon Jeon ,  Jungsun Kim ,  Sangoh Jeong

IPC: H04N19/436 ,  H04N19/174 ,  H04N19/70 ,  H04N19/44

Abstract: A video encoding method includes a step of encoding substreams which are rows of largest coding units (LCUs) in parallel with each other, and a step of transmitting a bit stream including the encoded substreams, where the number of the substreams may be the same as the number of entry points.

公开(公告)号：US10158872B2

公开(公告)日：2018-12-18

申请号：US15892650

申请日：2018-02-09

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry ,  Seungwook Park ,  Byeongmoon Jeon ,  Joonyoung Park ,  Jungsun Kim ,  Sangoh Jeong ,  Chulkeun Kim

IPC: H04N19/44 ,  H04N19/63 ,  H04N19/61 ,  H04N19/593 ,  H04N19/33 ,  H04N19/59 ,  H04N19/70 ,  H04N19/43 ,  H04N19/895 ,  H04N19/68 ,  H04N19/174 ,  H04N19/503

Abstract: The present invention relates to an inter-layer prediction method and to an apparatus implementing the method. The method may comprise the steps of generating a first block constituted by the value obtained by up-sampling the reconstruction value of a reference block of a reference layer corresponding to the current block; generating a second block constituted by a prediction value derived from intra-prediction mode of the current block; and generating a prediction block of the current block by combining sample values of the first block and the second block. Thus, intra-prediction on the current layer can be performed using the intra-prediction mode information of another layer.

公开(公告)号：US10038914B2

公开(公告)日：2018-07-31

申请号：US15685662

申请日：2017-08-24

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/55 ,  H04N19/52 ,  H04N19/61 ,  H04N19/176 ,  H04N19/593 ,  H04N19/625 ,  H04N19/172 ,  H04N19/184 ,  H04N19/513

CPC classification number: H04N19/55 ,  H04N19/172 ,  H04N19/176 ,  H04N19/184 ,  H04N19/513 ,  H04N19/52 ,  H04N19/593 ,  H04N19/61 ,  H04N19/625

Abstract: The present invention relates to a method and apparatus for processing a video signal, which can increase the accuracy of the motion vector prediction through motion vector scaling which takes a difference in the temporal distance between reference pictures into consideration. To this end, the present invention provides a video signal processing method and a video signal processing apparatus using the same, and the method comprises the steps of: scaling at least one neighboring partition motion vector for a motion vector prediction of the current partition; scaling the neighboring partition motion vector, which has been selected, when the reference picture of the neighboring partition motion vector is different from the reference picture of the current partition; acquiring a motion vector prediction value of the current partition using the scaled motion vector; and acquiring a motion vector of the current partition using the motion vector prediction value.