公开(公告)号：US20180041760A1

公开(公告)日：2018-02-08

申请号：US15550721

申请日：2016-02-04

Applicant: LG Electronics Inc.

Inventor： Moonmo KOO ,  Jin HEO ,  Eunyong SON ,  Sehoon YEA ,  Seungwook PARK ,  Kyuwoon KIM ,  Bumshik LEE

IPC: H04N19/14 ,  H04N19/61

Abstract: The present invention provides a method of decoding a video signal using graph-based transform comprising the steps: extracting prediction unit partition information of a current coding unit from the video signal; obtaining a graph-based transform kernel from predetermined table information based on the prediction unit partition information; and performing an inverse-transform of a transform unit using the graph-based transform kernel, wherein the graph-based transform kernel corresponds to at least one of the prediction unit partition information and an edge weight, and the edge weight is a predetermined value representing a correlation between pixels.

公开(公告)号：US20170142440A1

公开(公告)日：2017-05-18

申请号：US15421528

申请日：2017-02-01

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 ,  H04N19/44 ,  H04N19/573

CPC classification number: H04N19/577 ,  H04N19/423 ,  H04N19/44 ,  H04N19/46 ,  H04N19/503 ,  H04N19/573 ,  H04N19/70

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 tents 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.

公开(公告)号：US20170105016A1

公开(公告)日：2017-04-13

申请号：US15387727

申请日：2016-12-22

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/44 ,  H04N19/174 ,  H04N19/503

CPC classification number: H04N19/44 ,  H04N19/174 ,  H04N19/33 ,  H04N19/43 ,  H04N19/503 ,  H04N19/59 ,  H04N19/593 ,  H04N19/61 ,  H04N19/63 ,  H04N19/68 ,  H04N19/70 ,  H04N19/895

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：US20170019681A1

公开(公告)日：2017-01-19

申请号：US15280755

申请日：2016-09-29

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 ,  H04N19/176 ,  H04N19/52

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.

Abstract translation: 本发明涉及一种用于处理视频信号的方法和装置，其可以通过考虑到参考图像之间的时间距离的差异的运动矢量缩放来增加运动矢量预测的精度。 为此，本发明提供了一种视频信号处理方法和使用该视频信号处理方法的视频信号处理装置，该方法包括以下步骤：缩放当前分区的运动矢量预测的至少一个相邻分区运动矢量; 当相邻分区运动矢量的参考图片与当前分区的参考图片不同时，缩放已经选择的相邻分区运动矢量; 使用所述缩放的运动矢量获取所述当前分区的运动矢量预测值; 以及使用运动矢量预测值来获取当前分区的运动矢量。

公开(公告)号：US20160330478A1

公开(公告)日：2016-11-10

申请号：US15217607

申请日：2016-07-22

Applicant: LG ELECTRONICS INC.

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

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

CPC classification number: H04N19/593 ,  H04N19/11 ,  H04N19/117 ,  H04N19/176 ,  H04N19/182 ,  H04N19/61 ,  H04N19/80 ,  H04N19/85 ,  H04N19/91

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：US20160330477A1

公开(公告)日：2016-11-10

申请号：US15212390

申请日：2016-07-18

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/593 ,  H04N19/172 ,  H04N19/59 ,  H04N19/186 ,  H04N19/174 ,  H04N19/11 ,  H04N19/122 ,  H04N19/176 ,  H04N19/96

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.

公开(公告)号：US20150382013A1

公开(公告)日：2015-12-31

申请号：US14845883

申请日：2015-09-04

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/52 ,  H04N19/182 ,  H04N19/176

CPC classification number: H04N19/52 ,  G06T9/004 ,  H04N19/159 ,  H04N19/176 ,  H04N19/182 ,  H04N19/31

Abstract: The present invention relates to a technique for encoding and decoding video data, and more particularly, to a method for performing inter-prediction in an effective manner. The present invention combines an inter-prediction method using an AMVP mode and an inter-prediction method using a merge mode so as to propose a method for using the same candidate. The method for encoding video data proposed by the present invention comprises the following steps: receiving mode information on an inter-prediction method of a current block; determining, on the basis of the received mode information, whether the interprediction method to be applied to the current block is an AMVP mode or a merge mode; and selecting a candidate to derive motion information of the current block, wherein the candidate is selected in a left region, top region and corner region of the current block and in the same position block as the current block, and the AMVP mode and the merge mode are applied on the basis of the selected candidate.

Abstract translation: 本发明涉及一种用于对视频数据进行编码和解码的技术，更具体地说，涉及一种以有效的方式执行帧间预测的方法。 本发明使用AMVP模式和使用合并模式的帧间预测方法组合了帧间预测方法，以提出使用相同候选的方法。 本发明提出的编码视频数据的方法包括以下步骤：接收关于当前块的帧间预测方法的模式信息; 基于接收到的模式信息，确定要应用于当前块的间隔预测方法是否为AMVP模式或合并模式; 以及选择候选以导出当前块的运动信息，其中在当前块的左区域，顶部区域和角落区域以及与当前块相同的位置块中选择候选，并且AMVP模式和合并 模式基于所选择的候选者应用。

公开(公告)号：US20150229958A1

公开(公告)日：2015-08-13

申请号：US14690660

申请日：2015-04-20

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/56 ,  H04N19/176 ,  H04N19/513

CPC classification number: H04N19/105 ,  H04N19/139 ,  H04N19/176 ,  H04N19/50 ,  H04N19/513 ,  H04N19/56 ,  H04N19/573 ,  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.

Abstract translation: 本发明涉及用于对视频信号进行编码或解码的方法和装置。 根据本发明，获取并组合多个用于当前单位的图像预测的参考单元以获得单位预测值，从而提高图像预测的准确度。 更具体地，本发明涉及一种使用运动矢量预测值或在常规帧间预测中使用的运动矢量来诱导各种参考单元的方法，并且还涉及一种组合参考单元以便 获取当前单位的预测值。 此外，本发明涉及一种涉及获取用于合并模式的多个参考单元并组合参考单元以执行图像预测的方法。

公开(公告)号：US20150078438A1

公开(公告)日：2015-03-19

申请号：US14554189

申请日：2014-11-26

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/159 ,  H04N19/176 ,  H04N19/18 ,  H04N19/11

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.

Abstract translation: 公开了用于信令和接收用于处理的视频信号的方法和装置。 提供了用于确定用于预测当前预测块的最可能模式的方法以及用于将帧内预测模式分组为预测组的新方法。 还提供了用于预测视频数据的预测块以及信令帧内预测模式的方法。

公开(公告)号：US20130163669A1

公开(公告)日：2013-06-27

申请号：US13772144

申请日：2013-02-20

Applicant: LG Electronics Inc.

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

IPC: H04N7/26

CPC classification number: H04N19/105 ,  H04N19/139 ,  H04N19/176 ,  H04N19/50 ,  H04N19/513 ,  H04N19/56 ,  H04N19/573 ,  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.