公开(公告)号：US20210037264A1

公开(公告)日：2021-02-04

申请号：US17074319

申请日：2020-10-19

Applicant: LG ELECTRONICS INC.

Inventor： Jae Hyun LIM ,  Seung Wook PARK ,  Yong Joon JEON ,  Chul Keun KIM ,  Yong Hee CHOI ,  Jung Sun KIM ,  Nae Ri PARK ,  Hendry HENDRY ,  Byeong Moon JEON ,  Joon Young PARK

IPC: H04N19/91 ,  H04N19/13 ,  H04N19/146 ,  H04N19/154 ,  H04N19/159 ,  H04N19/593 ,  H04N19/463 ,  H04N19/184 ,  H04N19/52 ,  H04N19/70 ,  H04N19/174

Abstract: The present invention relates to an entropy encoding method, an entropy decoding method and to an apparatus using same. The entropy decoding method includes: a step of decoding a bin of a syntax element; and a step of acquiring information on the syntax element based on the decoded bin. In the step of decoding the bin, context-based decoding or bypass decoding is performed for each bin of the syntax element.

公开(公告)号：US20200236399A1

公开(公告)日：2020-07-23

申请号：US16839470

申请日：2020-04-03

Applicant: LG Electronics Inc.

Inventor： Yong Joon JEON ,  Seung Wook Park ,  Jae Hyun LIM ,  Jung Sun KIM ,  Joon Young PARK ,  Young Hee CHOI ,  Jae Won SUNG ,  Byeong Moon JEON

IPC: H04N19/593 ,  H04N19/16 ,  H04N19/44 ,  H04N19/423 ,  H04N19/186 ,  H04N19/176 ,  H04N19/70 ,  H04N19/136 ,  H04N19/132 ,  H04N19/11 ,  G06T9/00

Abstract: Disclosed are an intra prediction method of a chrominance block using a luminance sample and an apparatus using the same. An image decoding method comprises the steps of: calculating an intra prediction mode of a chrominance block on the basis of an LM mapping table when the chrominance block uses an LM; and generating a prediction block for the chrominance block on the basis of the calculated intra prediction mode of the chrominance block. When intra prediction mode information of chrominance blocks are decoded, mutually different tables are used depending on whether or not an LM is used, so that encoding and decoding can be performed without an unnecessary waste of bits.

公开(公告)号：US20200092581A1

公开(公告)日：2020-03-19

申请号：US16694784

申请日：2019-11-25

Applicant: LG Electronics Inc.

Inventor： Seung Wook PARK ,  Jae Hyun LIM ,  Jung Sun KIM ,  Joon Young PARK ,  Young Hee CHOI ,  Byeong Moon JEON ,  Yong Joon JEON

IPC: H04N19/513 ,  H04N19/52

Abstract: A method for setting the motion vector list and the apparatus using the same may include determining the presence of a first motion vector or a second motion vector by a sequential determination process in a first spatial candidate prediction group; and setting the first motion vector or the second motion vector produced through the sequential determination process as the candidate prediction motion vector. Thus, the encoding/decoding time and the complexity can be reduced by restricting the scaling number in a process for scanning the candidate prediction motion vector.

公开(公告)号：US20200014932A1

公开(公告)日：2020-01-09

申请号：US16572294

申请日：2019-09-16

Applicant: LG Electronics Inc.

Inventor： Seung Wook PARK ,  Jae Hyun LIM ,  Jung Sun KIM ,  Joon Young PARK ,  Young Hee CHOI ,  Byeong Moon JEON ,  Yong Joon JEON

IPC: H04N19/157 ,  H04N19/82 ,  H04N19/182 ,  H04N19/117 ,  H04N19/61 ,  H04N19/176 ,  H04N19/80

Abstract: According to the present invention, an image-encoding method comprises the following steps: receiving image information; generating a restored block for the current block based on the image information; and generating a finally restored block for the current block by applying an in-loop filter to the restored block on the basis of the image information. According to the present invention, image-encoding/decoding efficiency may be improved.

公开(公告)号：US20190297330A9

公开(公告)日：2019-09-26

申请号：US15797895

申请日：2017-10-30

Applicant: LG ELECTRONICS INC.

Inventor： Yong Joon JEON ,  Seung Wook PARK ,  Jung Sun KIM ,  Joon Young PARK ,  Byeong Moon JEON ,  Jae Hyun LIM

IPC: H04N19/159 ,  H04N19/00 ,  H04N19/86 ,  H04N19/593 ,  H04N19/117 ,  H04N19/176 ,  H04N19/105 ,  H04N19/82

Abstract: An intra prediction method and a device using the intra prediction method are provided. The intra prediction method includes the steps of: deriving a current prediction mode as a prediction mode of a current block; constructing neighboring samples of the current block with available reference samples; filtering the available reference samples; and generating predicted samples of the current block on the basis of the filtered available reference samples. The filtering step includes performing the filtering using the available reference sample located in the prediction direction of the current prediction mode and a predetermined number of available reference samples neighboring to the prediction direction of the current prediction mode.

公开(公告)号：US20180367811A1

公开(公告)日：2018-12-20

申请号：US16113357

申请日：2018-08-27

Applicant: LG ELECTRONICS INC.

Inventor： Seung Wook PARK ,  Jung Sun KIM ,  Young Hee CHOI ,  Byeong Moon Jeon ,  Joon Young PARK

IPC: H04N19/513 ,  H04N19/573 ,  H04N19/46 ,  H04N19/70 ,  H04N19/176 ,  H04N19/61 ,  H04N19/132 ,  H04N19/44

Abstract: A method of processing a video signal is disclosed. The present invention includes obtaining a current macroblock type, obtaining skip or direct mode indication information on a partition of the current macroblock according to the current macroblock type, deriving a motion vector of the partition according to the skip or direct mode indication information, and predicting a pixel value of the partition using the motion vector. Accordingly, the present invention obtains a pixel value of a reference block close to an original video using a motion vector, thereby enhancing a reconstruction ratio of the macroblock. As a macroblock uses skip or direct prediction indication information, it is unnecessary to separately code skip mode indication information and direct mode indication information on the macroblock, whereby an information size to be coded can be reduced.

公开(公告)号：US20180124426A1

公开(公告)日：2018-05-03

申请号：US15859132

申请日：2017-12-29

Applicant: LG ELECTRONICS INC.

Inventor： Yong Joon JEON ,  Seung Wook PARK ,  Jae Hyun LIM ,  Jung Sun KIM ,  Joon Young PARK ,  Young Hee CHOI ,  Jae Won SUNG ,  Byeong Moon JEON

IPC: H04N19/577 ,  H04N19/159 ,  H04N19/105 ,  H04N19/11 ,  H04N19/80 ,  H04N19/182 ,  H04N19/593 ,  H04N19/70

CPC classification number: H04N19/577 ,  H04N19/105 ,  H04N19/11 ,  H04N19/159 ,  H04N19/182 ,  H04N19/593 ,  H04N19/70 ,  H04N19/80

Abstract: An intra prediction method and a device using the intra prediction method are provided. The intra prediction method using a DC mode includes setting a bottom-right pixel to a DC-predicted value, interpolating the bottom-right pixel and an n-th top reference pixel to derive predicted values of an n-th column and interpolating the bottom-right pixel and an n-th left reference pixel to derive predicted values of an n-row, and performing bidirectional linear interpolation to derive predicted values of pixels included in a prediction unit other than the n-th row and the n-th column.

公开(公告)号：US20180027254A1

公开(公告)日：2018-01-25

申请号：US15721135

申请日：2017-09-29

Applicant: LG ELECTRONICS INC.

Inventor： Jae Hyun LIM ,  Seung Wook PARK ,  Jung Sun KIM ,  Yong Joon JEON ,  Joon Young PARK ,  Byeong Moon JEON

IPC: H04N19/51 ,  H04N19/52 ,  H04N19/103 ,  H04N19/176 ,  H04N19/109 ,  H04N19/50 ,  H04N19/517 ,  H04N19/82

CPC classification number: H04N19/51 ,  H04N19/103 ,  H04N19/109 ,  H04N19/176 ,  H04N19/50 ,  H04N19/517 ,  H04N19/52 ,  H04N19/82

Abstract: According to the present invention, an inter-prediction method includes: receiving mode information on the inter-prediction of a current block; decoding the received mode information; and performing inter-prediction using the decoded mode information. According to the present invention, image compression efficiency may be improved.

公开(公告)号：US20160255374A1

公开(公告)日：2016-09-01

申请号：US15151257

申请日：2016-05-10

Applicant: LG ELECTRONICS INC.

Inventor： Jae Hyun LIM ,  Seung Wook PARK ,  Yong Joon JEON ,  Chul Keun KIM ,  Young Hee CHOI ,  Jung Sun KIM ,  Nae Ri PARK ,  Hendry HENDRY ,  Byeong Moon JEON ,  Joon Young PARK

IPC: H04N19/91 ,  H04N19/174 ,  H04N19/159 ,  H04N19/13 ,  H04N19/70

CPC classification number: H04N19/91 ,  H04N19/13 ,  H04N19/146 ,  H04N19/154 ,  H04N19/159 ,  H04N19/174 ,  H04N19/184 ,  H04N19/463 ,  H04N19/52 ,  H04N19/593 ,  H04N19/70

Abstract: The present invention relates to an entropy decoding method and to a decoding apparatus using same. The entropy decoding method according to the present invention comprises: a step of decoding a bin of a syntax element; and a step of acquiring information on the syntax element based on the decoded bin. In the step of decoding the bin, context-based decoding or bypass decoding is performed for each bin of the syntax element.

公开(公告)号：US20160065986A1

公开(公告)日：2016-03-03

申请号：US14935631

申请日：2015-11-09

Applicant: LG ELECTRONICS INC.

Inventor： Seung Wook PARK ,  Jung Sun KIM ,  Young Hee CHOI ,  Byeong Moon Jeon ,  Joon Young PARK

IPC: H04N19/513 ,  H04N19/176 ,  H04N19/573 ,  H04N19/61

CPC classification number: H04N19/513 ,  H04N19/132 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/573 ,  H04N19/61 ,  H04N19/70

Abstract: A method of processing a video signal is disclosed. The present invention includes obtaining a current macroblock type, obtaining skip or direct mode indication information on a partition of the current macroblock according to the current macroblock type, deriving a motion vector of the partition according to the skip or direct mode indication information, and predicting a pixel value of the partition using the motion vector. Accordingly, the present invention obtains a pixel value of a reference block close to an original video using a motion vector, thereby enhancing a reconstruction ratio of the macroblock. As a macroblock uses skip or direct prediction indication information, it is unnecessary to separately code skip mode indication information and direct mode indication information on the macroblock, whereby an information size to be coded can be reduced.

Abstract translation: 公开了一种处理视频信号的方法。 本发明包括获取当前宏块类型，根据当前宏块类型获得关于当前宏块的分区的跳过或直接模式指示信息，根据跳过或直接模式指示信息导出分区的运动矢量，并且预测 使用运动矢量的分区的像素值。 因此，本发明使用运动矢量来获得接近原始视频的参考块的像素值，从而提高宏块的重构率。 由于宏块使用跳过或直接预测指示信息，因此不需要对宏块分别编码跳过模式指示信息和直接模式指示信息，从而可以减少要编码的信息大小。