公开(公告)号：US20210058635A1

公开(公告)日：2021-02-25

申请号：US17091528

申请日：2020-11-06

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：US20200228835A1

公开(公告)日：2020-07-16

申请号：US16835894

申请日：2020-03-31

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/593 ,  H04N19/105 ,  H04N19/176 ,  H04N19/11 ,  H04N19/117

Abstract: The present invention relates to an intra-prediction method and to an encoder and decoder using same. The intra-prediction method according to one embodiment of the present invention comprises the steps of deriving a prediction mode of a current block; and generating a prediction block with respect to the current block on the basis of the prediction mode of the current block. When the prediction mode of the current block is an intra-angular prediction mode, values of boundary samples from among left boundary samples and upper boundary samples of the prediction block, which are not positioned in a prediction direction of the intra-angular prediction mode, are derived on the basis of reference samples positioned in the prediction direction of the intra-angular prediction mode, and on the basis of adjacent reference samples.

公开(公告)号：US20200177924A1

公开(公告)日：2020-06-04

申请号：US16785114

申请日：2020-02-07

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Yongjoon JEON ,  Chulkeun KIM ,  Sangoh JEONG ,  Byeongmoon JEON ,  Jungsun KIM

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

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：US20200077108A1

公开(公告)日：2020-03-05

申请号：US16677192

申请日：2019-11-07

Applicant: LG Electronics Inc.

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

IPC: H04N19/44 ,  H04N19/70 ,  H04N19/43 ,  H04N19/895 ,  H04N19/68 ,  H04N19/63 ,  H04N19/61 ,  H04N19/593 ,  H04N19/33 ,  H04N19/59 ,  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：US20190238869A1

公开(公告)日：2019-08-01

申请号：US16381051

申请日：2019-04-11

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/29 ,  H04N19/44 ,  H04N19/184 ,  H04N19/174 ,  H04N19/70 ,  H04N19/86 ,  H04N19/30 ,  H04N19/46

CPC classification number: H04N19/29 ,  H04N19/174 ,  H04N19/184 ,  H04N19/30 ,  H04N19/44 ,  H04N19/46 ,  H04N19/597 ,  H04N19/70 ,  H04N19/86

Abstract: A method for decoding an image according to the present invention comprises the steps of: receiving and parsing a parameter set including indication information which indicates the presence of withheld information to be used in the future; receiving and parsing a slide header including the withheld information, when the indication information indicates the presence of the withheld information; and decoding the image according to semantics and a value corresponding to the withheld information. As a result, provided are a method and an apparatus for describing an additional extension information indication in a bitstream supporting a hierarchical image.

公开(公告)号：US20190174142A1

公开(公告)日：2019-06-06

申请号：US16251018

申请日：2019-01-17

Applicant: LG ELECTRONICS INC.

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

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

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：US20190149826A1

公开(公告)日：2019-05-16

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

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：US20180367809A1

公开(公告)日：2018-12-20

申请号：US16113703

申请日：2018-08-27

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 ,  H04N19/70 ,  H04N19/174 ,  H04N19/119

CPC classification number: H04N19/436 ,  H04N19/119 ,  H04N19/174 ,  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：US20180332294A1

公开(公告)日：2018-11-15

申请号：US16042696

申请日：2018-07-23

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/159 ,  H04N19/154 ,  H04N19/182 ,  H04N19/463 ,  H04N19/11 ,  H04N19/593 ,  H04N19/61 ,  H04N19/196 ,  H04N19/46 ,  H04N19/176 ,  H04N19/105 ,  H04N19/18 ,  H04N19/59 ,  H04N19/513 ,  H04N19/50 ,  H04N19/14

CPC classification number: H04N19/159 ,  H04N19/105 ,  H04N19/11 ,  H04N19/14 ,  H04N19/154 ,  H04N19/176 ,  H04N19/18 ,  H04N19/182 ,  H04N19/196 ,  H04N19/46 ,  H04N19/463 ,  H04N19/50 ,  H04N19/513 ,  H04N19/59 ,  H04N19/593 ,  H04N19/61

Abstract: A method and apparatus for signaling and receiving a video signal for processing is disclosed. Methods for determining a most probable mode for predicting a current prediction block are provided as well as new methods for grouping intra prediction modes into prediction groups. Methods for predicting a prediction block of video data as well as signaling intra prediction modes are also provided.

公开(公告)号：US20180288442A1

公开(公告)日：2018-10-04

申请号：US15996877

申请日：2018-06-04

Applicant: LG ELECTRONICS INC.

Inventor： Seungwook PARK ,  Jungsun KIM ,  Yongjoon JEON ,  Joonyoung PARK ,  Byeongmoon JEON ,  Jaehyun LIM

IPC: H04N19/80 ,  H04N19/44 ,  H04N19/13 ,  H04N19/82 ,  H04N19/70 ,  H04N19/61 ,  H04N19/50 ,  H04N19/117 ,  H04N19/186 ,  H04N19/132 ,  H04N19/126 ,  H04N19/98

CPC classification number: H04N19/80 ,  H04N19/117 ,  H04N19/126 ,  H04N19/13 ,  H04N19/132 ,  H04N19/186 ,  H04N19/44 ,  H04N19/50 ,  H04N19/61 ,  H04N19/70 ,  H04N19/82 ,  H04N19/98

Abstract: The present invention relates to a method for encoding and decoding image information and to an apparatus using same, and the method for encoding the image information, according to the present invention, comprises the steps of: generating a recovery block; applying a deblocking filter to the recovery block; applying a sample adaptive offset (SAO) to the recovery block to which the deblocking filter is applied; and transmitting the image information including information on the SAO which is applied, wherein in the step of transmitting, information for specifying bands that cover a scope of a pixel value, to which a band off set is applied, is transmitted when the band offset is applied during the step of applying the SAO.