公开(公告)号：US20220132155A1

公开(公告)日：2022-04-28

申请号：US17572289

申请日：2022-01-10

Applicant: LG Electronics Inc.

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

IPC: H04N19/44 ,  H04N19/463 ,  H04N19/91 ,  H04N19/124 ,  H04N19/176 ,  H04N19/184 ,  H04N19/503

Abstract: A method or coding image information, according to the present invention, comprises the steps of: binarizing according to different techniques, index values of forward prediction, backward prediction, and bidirectional prediction, depending on whether the bidirectional prediction is applied when inter-predicting a current block; and entropy coding a binarized codeword, wherein whether to apply the bidirectional prediction when inter-predicting the current block can be determined on the basis of the size of the current block. As a result, provided are a method for binarizing an inter-prediction direction of a prediction unit having a specific size, and an apparatus using same.

公开(公告)号：US20210258609A1

公开(公告)日：2021-08-19

申请号：US17240678

申请日：2021-04-26

Applicant: LG Electronics Inc.

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

IPC: H04N19/593

Abstract: An image decoding method according to the present invention comprises the steps of: 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：US20210241018A1

公开(公告)日：2021-08-05

申请号：US17234340

申请日：2021-04-19

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：US20210185360A1

公开(公告)日：2021-06-17

申请号：US17189582

申请日：2021-03-02

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：US20210006829A1

公开(公告)日：2021-01-07

申请号：US17028433

申请日：2020-09-22

Applicant: LG Electronics Inc.

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

IPC: H04N19/593 ,  H04N19/196 ,  H04N19/176 ,  H04N19/70 ,  H04N19/122 ,  H04N19/61 ,  H04N19/11 ,  H04N19/186 ,  H04N19/157 ,  H04N19/80 ,  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：US20200351523A1

公开(公告)日：2020-11-05

申请号：US16918418

申请日：2020-07-01

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/96 ,  H04N19/70 ,  H04N19/184 ,  H04N19/13

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：US20200329255A1

公开(公告)日：2020-10-15

申请号：US16914766

申请日：2020-06-29

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 ,  H04N19/91 ,  H04N19/182 ,  H04N19/80 ,  H04N19/85 ,  H04N19/11 ,  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.

公开(公告)号：US20200120361A1

公开(公告)日：2020-04-16

申请号：US16715895

申请日：2019-12-16

Applicant: LG Electronics Inc.

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

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

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.

公开(公告)号：US20200099932A1

公开(公告)日：2020-03-26

申请号：US16694279

申请日：2019-11-25

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 ,  H04N19/91 ,  H04N19/96 ,  H04N19/50 ,  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：US20200092547A1

公开(公告)日：2020-03-19

申请号：US16694769

申请日：2019-11-25

Applicant: LG Electronics Inc.

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

IPC: H04N19/105 ,  H04N19/573 ,  H04N19/50 ,  H04N19/176 ,  H04N19/513 ,  H04N19/56 ,  H04N19/139 ,  H04N19/577

Abstract: The present invention relates to a method and apparatus for encoding or decoding a video signal. According to the present invention, a plurality of reference units for image prediction of the current unit is acquired and combined to obtain a unit prediction value, thereby improving the accuracy of image prediction. More particularly, the present invention relates to a method for inducing a variety of reference units using a motion vector prediction value or a motion vector which is used in conventional inter-prediction, and also relates to a method which combines the reference units so as to obtain the prediction value for the current unit. In addition, the present invention relates to a method which involves acquiring a plurality of reference units for a merging mode, and combining the reference units so as to perform image prediction.