公开(公告)号：US20190246139A1

公开(公告)日：2019-08-08

申请号：US16389037

申请日：2019-04-19

Applicant: LG Electronics Inc. ,  Korea Advanced Institute of Science and Technology

Inventor： Byeong Moon JEON ,  Seung Wook PARK ,  Joon Young PARK ,  Jae Won SUNG ,  Hyun Wook PARK ,  Jee Hong LEE ,  Jin Young LEE ,  Dong San JUN ,  Yinji PIAO

IPC: H04N19/55 ,  H04N19/80 ,  G06F1/00 ,  H04N19/182 ,  H04N19/132 ,  H04N19/11 ,  H04N19/593 ,  H04N19/513 ,  H04N19/51 ,  H04N19/147 ,  H04N19/70 ,  H04N19/176 ,  H04N19/139 ,  H04N19/52 ,  H04N19/56 ,  H04N19/00 ,  G06K9/00 ,  H04N19/19

Abstract: An apparatus for processing a video signal and method thereof are disclosed. The present invention includes receiving prediction mode information, interpolating information and a residual of a current block, reconstructing an interpolating pixel using the interpolating information and a neighbor block, and reconstructing the current block using the interpolating pixel, the prediction mode information and the residual, wherein the interpolating information is generated based on a location of the current block. According to an apparatus and method for processing a video signal, high reconstruction rate can be obtained by improving the related art method having limited intra prediction modes available for a current block located on a boundary area of a picture in encoding in a manner of reconstructing and using an interpolating pixel based on interpolating information.

公开(公告)号：US20170280157A1

公开(公告)日：2017-09-28

申请号：US15622771

申请日：2017-06-14

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 ,  H04N19/80 ,  H04N19/11 ,  H04N19/593 ,  H04N19/182 ,  H04N19/159 ,  H04N19/105 ,  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：US20150249840A1

公开(公告)日：2015-09-03

申请号：US14711129

申请日：2015-05-13

Applicant: LG Electronics Inc.

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

IPC: H04N19/645 ,  H04N19/625

CPC classification number: H04N19/61 ,  H04N19/119 ,  H04N19/122 ,  H04N19/129 ,  H04N19/149 ,  H04N19/176 ,  H04N19/18 ,  H04N19/625

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.

Abstract translation: 本发明涉及一种视频信号解码方法，包括以下步骤：从视频信号中获取当前宏块的变换大小标志; 检查对应于变换大小标志的第一变换块中的每个像素位置处的非零变换系数的数量; 通过对第一变换块中具有最大数目的非零变换系数的像素的位置进行优先排列来改变第一变换块的扫描顺序; 确定第二变换块中每个像素位置处的非零变换系数的数目，并将第一变换块的改变的扫描顺序设置为第二变换块的初始化扫描顺序; 将第一变换块中的每个像素位置处的非零变换系数的数量和第二变换块中的每个像素位置处的非零变换系数的数量相加，并且将第二变换块的扫描顺序改变为 优先考虑具有最大数目的非零变换系数的像素的位置; 以及对在前一步骤中改变的扫描顺序排列的变换系数进行解码，其中第一变换块和第二变换块具有与变换大小标志对应的大小，并且被包含在当前宏块中。

公开(公告)号：US20220272379A1

公开(公告)日：2022-08-25

申请号：US17736632

申请日：2022-05-04

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

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：US20210218992A1

公开(公告)日：2021-07-15

申请号：US17214059

申请日：2021-03-26

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

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：US20210076067A1

公开(公告)日：2021-03-11

申请号：US17100162

申请日：2020-11-20

Applicant: LG Electronics Inc.

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

IPC: H04N19/593 ,  H04N19/105 ,  H04N19/176 ,  H04N19/61 ,  H04N19/14 ,  H04N19/157 ,  H04N19/182 ,  H04N19/44 ,  H04N19/86 ,  H04N19/46

Abstract: A method and apparatus for decoding a video signal are disclosed. A method for decoding a video signal includes obtaining block type information of a current block, confirming a prediction mode of the current block based on the block type information, obtaining, if the prediction mode of the current block is an intra prediction mode according to the prediction mode, at least one correlation parameter information using at least one neighboring pixel of the current block, obtaining an intra prediction value of the current block using the correlation parameter information, and reconstructing the current block using the intra prediction value of the current block.

公开(公告)号：US20190110074A1

公开(公告)日：2019-04-11

申请号：US16210700

申请日：2018-12-05

Applicant: LG Electronics Inc.

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

IPC: H04N19/593 ,  H04N19/46 ,  H04N19/86 ,  H04N19/44 ,  H04N19/182 ,  H04N19/105 ,  H04N19/14 ,  H04N19/61 ,  H04N19/176 ,  H04N19/157

Abstract: A method and apparatus for decoding a video signal are disclosed. A method for decoding a video signal includes obtaining block type information of a current block, confirming a prediction mode of the current block based on the block type information, obtaining, if the prediction mode of the current block is an intra prediction mode according to the prediction mode, at least one correlation parameter information using at least one neighboring pixel of the current block, obtaining an intra prediction value of the current block using the correlation parameter information, and reconstructing the current block using the intra prediction value of the current block.

公开(公告)号：US20160212445A1

公开(公告)日：2016-07-21

申请号：US15007896

申请日：2016-01-27

Applicant: LG ELECTRONICS INC.

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

IPC: H04N19/593 ,  H04N19/86 ,  H04N19/105 ,  H04N19/44 ,  H04N19/157 ,  H04N19/176 ,  H04N19/182 ,  H04N19/46 ,  H04N19/14

CPC classification number: H04N19/593 ,  H04N19/105 ,  H04N19/14 ,  H04N19/157 ,  H04N19/176 ,  H04N19/182 ,  H04N19/44 ,  H04N19/46 ,  H04N19/61 ,  H04N19/86

Abstract: A method and apparatus for decoding a video signal are disclosed. A method for decoding a video signal includes obtaining block type information of a current block, confirming a prediction mode of the current block based on the block type information, obtaining, if the prediction mode of the current block is an intra prediction mode according to the prediction mode, at least one correlation parameter information using at least one neighboring pixel of the current block, obtaining an intra prediction value of the current block using the correlation parameter information, and reconstructing the current block using the intra prediction value of the current block.

Abstract translation: 公开了一种解码视频信号的方法和装置。 一种解码视频信号的方法包括获取当前块的块类型信息，基于块类型信息确认当前块的预测模式，如果当前块的预测模式是根据该块类型信息的帧内预测模式， 使用当前块的至少一个相邻像素的至少一个相关参数信息，使用相关参数信息获得当前块的帧内预测值，并使用当前块的帧内预测值重构当前块。

公开(公告)号：US20130272417A1

公开(公告)日：2013-10-17

申请号：US13914187

申请日：2013-06-10

Applicant: Korea Advanced Institute of Science and Technology ,  LG Electronics Inc.

Inventor： Byeong Moon JEON ,  Seung Wook PARK ,  Joon Young PARK ,  Jae Won SUNG ,  Hyun Wook PARK ,  Jee Hong LEE ,  Jin Young LEE ,  Dong San JUN ,  Yinji PIAO

IPC: H04N7/36

CPC classification number: H04N19/55 ,  G06F1/00 ,  G06K9/00 ,  H04N19/00 ,  H04N19/11 ,  H04N19/132 ,  H04N19/139 ,  H04N19/147 ,  H04N19/176 ,  H04N19/182 ,  H04N19/19 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/56 ,  H04N19/593 ,  H04N19/70 ,  H04N19/80

Abstract: An apparatus for processing a video signal and method thereof are disclosed. The present invention includes receiving prediction mode information, interpolating information and a residual of a current block, reconstructing an interpolating pixel using the interpolating information and a neighbor block, and reconstructing the current block using the interpolating pixel, the prediction mode information and the residual, wherein the interpolating information is generated based on a location of the current block. According to an apparatus and method for processing a video signal, high reconstruction rate can be obtained by improving the related art method having limited intra prediction modes available for a current block located on a boundary area of a picture in encoding in a manner of reconstructing and using an interpolating pixel based on interpolating information.

公开(公告)号：US20250097459A1

公开(公告)日：2025-03-20

申请号：US18971605

申请日：2024-12-06

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

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.