公开(公告)号：US20250142116A1

公开(公告)日：2025-05-01

申请号：US19009614

申请日：2025-01-03

Applicant: LG Electronics Inc.

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

IPC: H04N19/593 ,  H04N19/70 ,  H04N19/96

Abstract: Disclosed are a method for partitioning a block and a decoding device. A method for decoding an image comprises the steps of: partitioning one prediction unit, in which an intra prediction is performed in a predetermined intra prediction mode, into a plurality of transform units; and performing the intra prediction for each of the plurality of the transform units on the basis of the predetermined intra prediction mode. Thus, the invention increases the image encoding efficiency.

公开(公告)号：US20230362407A1

公开(公告)日：2023-11-09

申请号：US18223817

申请日：2023-07-19

Applicant: LG Electronics Inc.

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

IPC: H04N19/593 ,  H04N19/50 ,  H04N19/11 ,  H04N19/14 ,  H04N19/157 ,  H04N19/182 ,  H04N19/44 ,  H04N19/80 ,  H04N19/82 ,  G06V10/20

CPC classification number: H04N19/593 ,  H04N19/50 ,  H04N19/11 ,  H04N19/14 ,  H04N19/157 ,  H04N19/182 ,  H04N19/44 ,  H04N19/80 ,  H04N19/82 ,  G06V10/20

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：US20220150535A1

公开(公告)日：2022-05-12

申请号：US17587850

申请日：2022-01-28

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

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.

公开(公告)号：US20210211726A1

公开(公告)日：2021-07-08

申请号：US17208100

申请日：2021-03-22

Applicant: LG ELECTRONICS INC.

Inventor： Jung Sun KIM ,  Seung Wook PARK ,  Young Hee CHOI ,  Jaewon SUNG ,  Byeong Moon JEON ,  Joon Young PARK

IPC: H04N19/61 ,  H04N19/625 ,  H04N19/129 ,  H04N19/18 ,  H04N19/149 ,  H04N19/119 ,  H04N19/122 ,  H04N19/176

Abstract: The present invention relates to a method for decoding a video signal, comprising the steps of: acquiring a transform size flag of the current macroblock from a video signal; checking the number of non-zero transform coefficients at each pixel position in a first transform block which corresponds to the transform size flag; changing a scan order of the first transform block by prioritizing the position of the pixel having the greatest number of the non-zero transform coefficients in the first transform block; determining the number of the non-zero transform coefficients at each pixel position in a second transform block, and setting the changed scan order of the first transform block as an initialized scan order of the second transform block; adding the number of the non-zero transform coefficients at each pixel position in the first transform block and the number of the non-zero transform coefficients at each pixel position in the second transform block, and changing the scan order of the second transform block by prioritizing the position of the pixel having the greatest number of the non-zero transform coefficients; and decoding the transform coefficients arranged in the scan order changed in the previous step, wherein the first transform block and the second transform block have sizes corresponding to the transform size flag, and are contained in the current macroblock.

公开(公告)号：US20210006817A1

公开(公告)日：2021-01-07

申请号：US16893093

申请日：2020-06-04

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：US20190373268A1

公开(公告)日：2019-12-05

申请号：US16540540

申请日：2019-08-14

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/159 ,  H04N19/61 ,  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 ,  H04N19/105

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：US20180270504A1

公开(公告)日：2018-09-20

申请号：US15988512

申请日：2018-05-24

Applicant: LG ELECTRONICS INC.

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

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

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.

公开(公告)号：US20180103265A1

公开(公告)日：2018-04-12

申请号：US15836462

申请日：2017-12-08

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/513 ,  H04N19/583 ,  H04N19/51

Abstract: The method for deriving a temporal motion vector predictor according to the present invention comprises the steps of: selecting a reference picture for a current block; deciding a predictor block corresponding to a predetermined storage unit block, as a reference prediction unit for the current block, in the reference picture; and deriving the temporal motion vector predictor from motion information of the decided reference prediction unit. The present invention enhances image compression efficiency.

公开(公告)号：US20160249054A1

公开(公告)日：2016-08-25

申请号：US15143719

申请日：2016-05-02

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/139 ,  H04N19/159 ,  H04N19/61 ,  H04N19/513 ,  H04N19/56 ,  H04N19/105 ,  H04N19/167

CPC classification number: H04N19/139 ,  H04N19/105 ,  H04N19/159 ,  H04N19/167 ,  H04N19/51 ,  H04N19/521 ,  H04N19/56 ,  H04N19/61 ,  H04N19/96

Abstract: The present invention discloses a method and apparatus for encoding or decoding a video signal. The method for processing a video signal according to the present invention uses a merging mode in which prediction information on a neighbor unit is used instead of transmitting prediction information on the present unit, so as to improve coding efficiency. In this case, the number of available candidate units for merging among the units in a predetermined position is determined, and information for the merging mode is acquired on the basis of the number of the available candidate units for merging. The unit to be merged is determined using the information for the merging mode, and prediction information on the unit to be merged is acquired. The prediction value for the present unit is acquired using the prediction information on the unit to be merged, and the present unit is restored using the acquired prediction value.

公开(公告)号：US20160073131A1

公开(公告)日：2016-03-10

申请号：US14758866

申请日：2014-01-02

Applicant: LG ELECTRONICS INC.

Inventor： Jin HEO ,  Jiwook JUNG ,  Sehoon YEA ,  Moonmo KOO ,  Taesup KIM ,  Jaewon SUNG ,  Eunyong SON

IPC: H04N19/597 ,  H04N13/00 ,  H04N19/44

CPC classification number: H04N19/597 ,  H04N13/128 ,  H04N13/161 ,  H04N19/44 ,  H04N2213/003

Abstract: The present invention relates to a video signal processing method and device and is capable of acquiring differential depth index information on the basis of a predetermined binarization method, acquiring a differential depth value by using the differential depth index information, acquiring the depth value of a current depth block by using the differential depth value, and decoding the current depth block by using the depth value of the current depth block. The present invention can increase encoding efficiency.

Abstract translation: 视频信号处理方法和装置技术领域本发明涉及视频信号处理方法和装置，并且能够基于预定的二值化方法获取差分深度索引信息，通过使用差分深度索引信息获取差分深度值，获取当前的深度值 通过使用差分深度值进行深度块，并且通过使用当前深度块的深度值来解码当前深度块。 本发明可以提高编码效率。