公开(公告)号：US20220256147A1

公开(公告)日：2022-08-11

申请号：US17733656

申请日：2022-04-29

Applicant: LG Electronics Inc.

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

IPC: H04N19/117 ,  H04N19/159 ,  H04N19/176 ,  H04N19/136 ,  H04N19/82 ,  H04N19/86

Abstract: A deblocking filtering method, a boundary strength (bS) deriving method, and encoding/decoding method and apparatus using the methods are provided. The bS deriving method includes the steps of: deriving a boundary of a deblocking filtering unit block which is a unit block on which deblocking filtering is performed; and setting a bS for each bS setting unit block in the deblocking filtering unit block. Here, the step of setting the bS includes setting a bS value of a target boundary corresponding to the boundary of the deblocking filtering unit block as the bS setting unit block.

公开(公告)号：US20210329260A1

公开(公告)日：2021-10-21

申请号：US17362604

申请日：2021-06-29

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

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：US20200260094A1

公开(公告)日：2020-08-13

申请号：US16863885

申请日：2020-04-30

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 ,  H04N19/174 ,  H04N19/119 ,  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.

公开(公告)号：US20190289326A1

公开(公告)日：2019-09-19

申请号：US16434922

申请日：2019-06-07

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

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：US20190166372A1

公开(公告)日：2019-05-30

申请号：US16182060

申请日：2018-11-06

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Joonyoung PARK ,  Chulkeun KIM ,  Byeongmoon JEON ,  Jungsun KIM

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

CPC classification number: H04N19/159 ,  H04N7/00 ,  H04N19/105 ,  H04N19/172 ,  H04N19/184 ,  H04N19/423 ,  H04N19/46 ,  H04N19/58 ,  H04N19/70

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：US20190124344A1

公开(公告)日：2019-04-25

申请号：US16222383

申请日：2018-12-17

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Seungwook PARK ,  Byeongmoon JEON ,  Joonyoung PARK ,  Jungsun KIM ,  Sangoh JEONG ,  Chulkeun KIM

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

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

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：US20180192068A1

公开(公告)日：2018-07-05

申请号：US15737140

申请日：2016-06-16

Applicant: LG Electronics Inc.

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

IPC: H04N19/44 ,  H04N19/80 ,  H04N19/117

Abstract: Disclosed in the present invention are a method for encoding/decoding an image and a device for same. Particularly, a method for decoding an image may comprise the steps of: parsing a filter index from a bit stream outputted from an encoder; determining a filter set using the filter index, from among a plurality of filter sets belonging to a predetermined filter bank; deriving a filter coefficient based on a coefficient for filtering, defined by the filter set, which has been determined by the filter index; and applying filtering to a reconstructed image obtained using a prediction signal and a differential signal, by using the derived filter coefficient.

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：US20180109803A1

公开(公告)日：2018-04-19

申请号：US15845770

申请日：2017-12-18

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Yongjoon JEON ,  Chulkeun KIM ,  Jungsun KIM ,  Byeongmoon JEON ,  Joonyoung PARK

IPC: H04N19/44 ,  H04N19/58 ,  H04N19/176 ,  H04N19/587 ,  H04N19/105 ,  H04N19/70 ,  H04N19/157

CPC classification number: H04N19/44 ,  H04N19/105 ,  H04N19/157 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/463 ,  H04N19/513 ,  H04N19/523 ,  H04N19/573 ,  H04N19/58 ,  H04N19/587 ,  H04N19/70

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：US20180063552A1

公开(公告)日：2018-03-01

申请号：US15550331

申请日：2016-02-15

Applicant: LG Electronics Inc.

Inventor： Chulkeun KIM ,  Jin HEO ,  Sehoon YEA

IPC: H04N19/82 ,  H04N19/159 ,  H04N19/61 ,  H04N19/107

CPC classification number: H04N19/82 ,  H04N19/107 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176 ,  H04N19/48 ,  H04N19/593 ,  H04N19/61 ,  H04N19/91

Abstract: Disclosed is a method of decoding a video signal. The method includes extracting an intra-prediction mode of a current block from a video signal, generating a prediction block according to the intra-prediction mode, performing a transform on the prediction block, performing a filtering on the transformed prediction block using a spatial correlation coefficient, and generating a reconstruction block based on the filtered prediction block and a residual block, wherein the spatial correlation coefficient is a value determined based on a direction of the intra-prediction mode.