公开(公告)号：US20140321542A1

公开(公告)日：2014-10-30

申请号：US14324446

申请日：2014-07-07

Applicant: LG Electronics Inc.

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

IPC: H04N19/593

CPC classification number: G06K9/36 ,  H04N19/11 ,  H04N19/14 ,  H04N19/157 ,  H04N19/182 ,  H04N19/44 ,  H04N19/50 ,  H04N19/593 ,  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.

Abstract translation: 引入新的内部平面模式用于预测数字视频数据。 作为新的内部平面模式的一部分，提供了用于预测预测单元内的第一样本的各种方法，其中需要第一样本以在处理新的内部平面模式时参考。 并且一旦成功地预测了第一个样本，新的平面内模式能够通过处理四个先前重建的参考样本的双线性内插来预测预测单元内的视频数据的样本。

公开(公告)号：US20230135855A1

公开(公告)日：2023-05-04

申请号：US18089253

申请日：2022-12-27

Applicant: LG Electronics Inc.

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

IPC: H04N19/139 ,  H04N19/61 ,  H04N19/96 ,  H04N19/105 ,  H04N19/159 ,  H04N19/167 ,  H04N19/513 ,  H04N19/56 ,  H04N19/51

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：US20220321911A1

公开(公告)日：2022-10-06

申请号：US17840272

申请日：2022-06-14

Applicant: LG Electronics Inc.

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

IPC: H04N19/593 ,  H04N19/96

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：US20220295097A1

公开(公告)日：2022-09-15

申请号：US17827093

申请日：2022-05-27

Applicant: LG Electronics Inc.

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

IPC: H04N19/593 ,  H04N19/96

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：US20220060749A1

公开(公告)日：2022-02-24

申请号：US17518306

申请日：2021-11-03

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：US20210297660A1

公开(公告)日：2021-09-23

申请号：US17342033

申请日：2021-06-08

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.

公开(公告)号：US20210250588A1

公开(公告)日：2021-08-12

申请号：US17240282

申请日：2021-04-26

Applicant: LG Electronics Inc.

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

IPC: H04N19/139 ,  H04N19/61 ,  H04N19/96 ,  H04N19/105 ,  H04N19/159 ,  H04N19/167 ,  H04N19/513 ,  H04N19/56 ,  H04N19/51

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：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：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：US20180199063A1

公开(公告)日：2018-07-12

申请号：US15915211

申请日：2018-03-08

Applicant: LG Electronics Inc.

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

IPC: H04N19/593 ,  H04N19/96 ,  H04N19/107 ,  H04N19/70 ,  H04N19/122 ,  H04N19/61 ,  H04N19/11 ,  H04N19/186 ,  H04N19/157 ,  H04N19/80 ,  H04N19/196 ,  H04N19/172 ,  H04N19/59 ,  H04N19/174 ,  H04N19/176

CPC classification number: H04N19/593 ,  H04N19/107 ,  H04N19/11 ,  H04N19/122 ,  H04N19/157 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186 ,  H04N19/196 ,  H04N19/59 ,  H04N19/61 ,  H04N19/70 ,  H04N19/80 ,  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.