公开(公告)号：US20220286685A1

公开(公告)日：2022-09-08

申请号：US17745719

申请日：2022-05-16

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Seethal PALURI ,  Seunghwan KIM

IPC: H04N19/132 ,  H04N19/82 ,  H04N19/176 ,  H04N19/46

Abstract: According to embodiments of the present document, information for carrying out in-loop filtering across virtual boundaries can be efficiently signaled. For example, in-loop filtering can be carried out on the basis of signaling of information which is related to whether in-loop filtering across virtual boundaries is enabled or not.

公开(公告)号：US20220286669A1

公开(公告)日：2022-09-08

申请号：US17748561

申请日：2022-05-19

Applicant: LG Electronics Inc.

Inventor： Hendry HENDRY

IPC: H04N19/105 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46 ,  H04N19/70

Abstract: An image decoding method performed by a decoding device according to the present document comprises the steps of: obtaining image information including an output layer set (OLS) decoded picture buffer (DPB) parameter index for a target OLS and DPB parameter information; deriving DPB parameter information for the target OLS on the basis of the OLS DPB parameter index; performing a picture management process on pictures of a DPB on the basis of the DPB parameter information for the target OLS; configuring a reference picture list for a current picture on the basis of the pictures of the DPB; and performing an inter prediction on a block in the current picture on the basis of the reference picture list.

公开(公告)号：US20210344955A1

公开(公告)日：2021-11-04

申请号：US17379108

申请日：2021-07-19

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 ,  H04N19/426 ,  H04N19/176 ,  H04N19/11 ,  H04N19/463 ,  H04N19/117 ,  H04N19/122 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13 ,  H04N19/159 ,  H04N19/174 ,  H04N19/44 ,  H04N19/61 ,  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：US20200382789A1

公开(公告)日：2020-12-03

申请号：US16998951

申请日：2020-08-20

Applicant: LG Electronics Inc.

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

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

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：US20200280738A1

公开(公告)日：2020-09-03

申请号：US16875199

申请日：2020-05-15

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 ,  H04N19/174 ,  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 ,  H04N19/61

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 pluraity 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：US20200280724A1

公开(公告)日：2020-09-03

申请号：US16814808

申请日：2020-03-10

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：US20200053389A1

公开(公告)日：2020-02-13

申请号：US16594660

申请日：2019-10-07

Applicant: LG Electronics Inc.

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

IPC: H04N19/593

Abstract: An image decoding method according to the present invention comprises the steps o£ acquiring information to form a reference picture set of a current picture by entropy decoding the received bitstream information; and performing prediction on a prediction block inside the current picture by using a reference picture list which is formed based on the reference picture set.

公开(公告)号：US20200045327A1

公开(公告)日：2020-02-06

申请号：US16597153

申请日：2019-10-09

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：US20200014935A1

公开(公告)日：2020-01-09

申请号：US16576631

申请日：2019-09-19

Applicant: LG Electronics Inc.

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

IPC: H04N19/159 ,  H04N19/30 ,  H04N19/503 ,  H04N19/172 ,  H04N19/176 ,  H04N19/105 ,  H04N19/46 ,  H04N19/463 ,  H04N19/187 ,  H04N19/33 ,  H04N19/573 ,  H04N19/577

Abstract: The present invention relates to a method for coding a scalable video in a multilayer structure, and a method for encoding a video according to the present invention comprises the steps of: decoding and saving a picture of a reference layer; inducing an interlayer reference picture which is referenced for predicting a current block of a current layer; producing a reference picture list including the interlayer reference picture and a reference picture of the current layer; conducting a prediction on the current block of the current layer with the reference picture list to induce a prediction sample with respect to the current block; inducing a recovery sample with respect to the current block based on the prediction sample and the prediction block with respect to the current block; and transmitting reference information for indicating a picture that can be used for interlayer prediction from the pictures of the reference layer.

公开(公告)号：US20190268620A1

公开(公告)日：2019-08-29

申请号：US16406810

申请日：2019-05-08

Applicant: LG Electronics Inc.

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

IPC: H04N19/577 ,  H04N19/46 ,  H04N19/503 ,  H04N19/44 ,  H04N19/423 ,  H04N19/70 ,  H04N19/573

Abstract: The present invention relates to a method for signaling image information and to a decoding method using same. The method for signaling image information according to the present invention comprises: a step of performing inter-prediction for a current picture; and a step of signaling information including the result of said inter-prediction and reference picture information indicating reference pictures usable in said inter prediction, wherein said reference picture information contains pieces of picture order count (POC) information of said usable reference pictures. The POC information of said usable reference pictures in said reference picture information is configured such that POCs for the pictures existing before said current picture in terms of a POC sequence are located at the front, and POCs for the pictures existing after said current picture in terms of a POC sequence are located following the POCs located at the front.