公开(公告)号：US20140098872A1

公开(公告)日：2014-04-10

申请号：US14103403

申请日：2013-12-11

Applicant: LG Electronics Inc.

Inventor： Byeong Moon JEON

IPC: H04N7/36

CPC classification number: H04N19/577 ,  H04N19/105 ,  H04N19/157 ,  H04N19/176 ,  H04N19/50 ,  H04N19/503 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/521 ,  H04N19/56 ,  H04N19/573 ,  H04N19/61

Abstract: In one embodiment, a method for a moving picture coding system to derive at least one motion vector of a bi-predictive block in a current picture from a motion vector of a first block in a first picture includes selecting, by the moving picture coding system, a list 1 motion vector of the first block in the first picture as a motion vector for deriving list 0 and list 1 motion vectors of the bi-predictive block if the first block only has the list 1 motion vector, the first picture being permitted to be located temporally before the current picture and permitted to be located temporally after the current picture, scaling the selected motion vector and deriving the list 0 and list 1 motion vectors of the bi-predictive block based on the scaled motion vector.

Abstract translation: 在一个实施例中，一种运动图像编码系统从第一图像中的第一块的运动矢量导出当前图像中的双向预测块的至少一个运动矢量的方法包括：通过运动图像编码系统 ，第一图像中的第一块的列表1运动矢量作为用于导出列表0的运动矢量和列表1双预测块的运动矢量，如果第一块仅具有列表1运动矢量，则允许第一图像 位于时间上位于当前画面之前并被允许位于当前画面之后的时间上，缩放所选择的运动矢量，并且基于缩放的运动矢量导出列表0和列表1双预测块的运动矢量。

公开(公告)号：US20130266071A1

公开(公告)日：2013-10-10

申请号：US13914106

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：US20250016375A1

公开(公告)日：2025-01-09

申请号：US18896804

申请日：2024-09-25

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 ,  H04N19/119 ,  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 nonzero 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 nonzero 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：US20230362404A1

公开(公告)日：2023-11-09

申请号：US18222188

申请日：2023-07-14

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: H04N19/52 ,  H04N19/513

CPC classification number: H04N19/521 ,  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：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：US20220060736A1

公开(公告)日：2022-02-24

申请号：US17516382

申请日：2021-11-01

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 ,  H04N19/70 ,  H04N19/46 ,  H04N19/61 ,  H04N19/132 ,  H04N19/44 ,  H04N19/573

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：US20210368201A1

公开(公告)日：2021-11-25

申请号：US17395953

申请日：2021-08-06

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：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：US20210084320A1

公开(公告)日：2021-03-18

申请号：US17107083

申请日：2020-11-30

Applicant: LG ELECTRONICS INC.

Inventor： Joon Young Park ,  SeungWook PARK ,  Jung Sun KIM ,  Young Hee CHOI ,  Byeong Moon JEON

IPC: H04N19/44 ,  H04N19/70 ,  H04N19/196 ,  H04N19/11 ,  H04N19/176 ,  H04N19/184 ,  H04N19/587 ,  H04N19/61

Abstract: The present invention includes obtaining block type identification information on a partition of the current macroblock when the current macroblock is intra-mixed, specifying a bock type of the current macroblock based on the block type identification information, obtaining an intra prediction mode of the current macroblock according to the block type of the partition of the current macroblock, and predicting the current macroblock using the intra prediction mode and a pixel value of a neighboring block.

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.