公开(公告)号：US20190014317A1

公开(公告)日：2019-01-10

申请号：US16113730

申请日：2018-08-27

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: H04N19/117 ,  H04N19/176 ,  H04N19/82 ,  H04N19/13 ,  H04N19/139 ,  H04N19/14 ,  H04N19/91 ,  H04N19/186 ,  H04N19/70

Abstract: The present invention relates to an image information encoding and decoding method and a device for same. One embodiment of an image information encoding method according to the present invention, as an image information encoding method according to another embodiment of the present invention, includes the steps of: generating a restore block; applying a deblocking filter on the restore block; applying a Sample Adaptive Offset (SAO) on the restore block having the deblocking filter applied thereon; and transmitting information on the SAO application. During the applying of the SAO, the SAO is applied to chroma pixels, and during the transmitting of the information, in addition to information on whether the SAO is applied on the chroma pixels, at least one of area information, division information on the SAO coverage area, SAO type information, and SAO offset information is transmitted.

公开(公告)号：US20170310963A1

公开(公告)日：2017-10-26

申请号：US15648206

申请日：2017-07-12

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: H04N19/117 ,  H04N19/82 ,  H04N19/70 ,  H04N19/186 ,  H04N19/176 ,  H04N19/14 ,  H04N19/139 ,  H04N19/91 ,  H04N19/13

CPC classification number: H04N19/117 ,  H04N19/13 ,  H04N19/139 ,  H04N19/14 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70 ,  H04N19/82 ,  H04N19/91

Abstract: The present invention relates to an image information encoding and decoding method and a device for same. One embodiment of an image information encoding method according to the present invention, as an image information encoding method according to another embodiment of the present invention, includes the steps of: generating a restore block; applying a deblocking filter on the restore block; applying a Sample Adaptive Offset (SAO) on the restore block having the deblocking filter applied thereon; and transmitting information on the SAO application. During the applying of the SAO, the SAO is applied to chroma pixels, and during the transmitting of the information, in addition to information on whether the SAO is applied on the chroma pixels, at least one of area information, division information on the SAO coverage area, SAO type information, and SAO offset information is transmitted.

公开(公告)号：US09743083B2

公开(公告)日：2017-08-22

申请号：US14990405

申请日：2016-01-07

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: H04N19/91 ,  H04N19/186 ,  H04N19/117 ,  H04N19/70 ,  H04N19/14 ,  H04N19/82 ,  H04N19/13 ,  H04N19/139 ,  H04N19/176

CPC classification number: H04N19/117 ,  H04N19/13 ,  H04N19/139 ,  H04N19/14 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70 ,  H04N19/82 ,  H04N19/91

Abstract: The present invention relates to an image information encoding and decoding method and a device for same. One embodiment of an image information encoding method according to the present invention, as an image information encoding method according to another embodiment of the present invention, includes the steps of: generating a restore block; applying a deblocking filter on the restore block; applying a Sample Adaptive Offset (SAO) on the restore block having the deblocking filter applied thereon; and transmitting information on the SAO application. During the applying of the SAO, the SAO is applied to chroma pixels, and during the transmitting of the information, in addition to information on whether the SAO is applied on the chroma pixels, at least one of area information, division information on the SAO coverage area, SAO type information, and SAO offset information is transmitted.

公开(公告)号：US09167249B2

公开(公告)日：2015-10-20

申请号：US14042912

申请日：2013-10-01

Applicant: LG Electronics Inc.

Inventor： Seung Wook Park ,  Jung Sun Kim ,  Young Hee Choi ,  Byeong Moon Jeon ,  Joon Young Park

IPC: H04N11/02 ,  H04N19/583 ,  H04N19/176 ,  H04N19/172 ,  H04N19/51 ,  H04N19/61 ,  H04N19/11 ,  H04N19/107 ,  H04N19/44 ,  H04N19/86

CPC classification number: H04N19/51 ,  H04N19/107 ,  H04N19/11 ,  H04N19/172 ,  H04N19/176 ,  H04N19/18 ,  H04N19/44 ,  H04N19/61 ,  H04N19/86

Abstract: The present invention relates to a video signal decoding method for adding an intra prediction mode as a sub-macroblock type to prediction of a macroblock in coding a video signal. Some implementations may include obtaining a macroblock type, when a macroblock includes the intra prediction coded sub-macroblock and the inter prediction coded sub-macroblock based on the macroblock type, obtaining prediction mode flag information indicating whether the sub-macroblock is the intra prediction coded or the inter prediction coded, and obtaining a prediction value of the sub-macroblock. Accordingly, implementations disclosed herein may raise coding efficiency of video signal by adding an intra prediction mode as a sub-macroblock type in predicting a macroblock.

Abstract translation: 本发明涉及用于将帧内预测模式作为子宏块类型添加到对编码视频信号的宏块进行预测的视频信号解码方法。 一些实现可以包括：当宏块包括基于宏块类型的帧内预测编码子宏块和帧间预测编码子宏块时获得宏块类型，获得指示子宏块是帧内预测编码的预测模式标志信息 或帧间预测编码，并获得子宏块的预测值。 因此，本文公开的实现方式可以通过在预测宏块中添加帧内预测模式作为子宏块类型来提高视频信号的编码效率。

公开(公告)号：US12058369B2

公开(公告)日：2024-08-06

申请号：US17831919

申请日：2022-06-03

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 ,  H04N19/14 ,  H04N19/157 ,  H04N19/176 ,  H04N19/182 ,  H04N19/44 ,  H04N19/46 ,  H04N19/61 ,  H04N19/86

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.

公开(公告)号：US11930201B2

公开(公告)日：2024-03-12

申请号：US18136170

申请日：2023-04-18

Applicant: LG ELECTRONICS INC.

Inventor： Joon Young Park ,  Seung Wook Park ,  Jung Sun Kim ,  Young Hee Choi ,  Byeong Moon Jeon

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

CPC classification number: H04N19/44 ,  H04N19/11 ,  H04N19/176 ,  H04N19/184 ,  H04N19/196 ,  H04N19/587 ,  H04N19/61 ,  H04N19/70

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：US20230254497A1

公开(公告)日：2023-08-10

申请号：US18136170

申请日：2023-04-18

Applicant: LG ELECTRONICS INC.

Inventor： Joon Young PARK ,  Seung Wook 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

CPC classification number: 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：US11240520B2

公开(公告)日：2022-02-01

申请号：US17107083

申请日：2020-11-30

Applicant: LG ELECTRONICS INC.

Inventor： Joon Young Park ,  Seung Wook Park ,  Jung Sun Kim ,  Young Hee Choi ,  Byeong Moon Jeon

IPC: H04N19/44 ,  H04N19/70 ,  H04N19/196 ,  H04N19/11 ,  H04N19/176 ,  H04N19/587 ,  H04N19/184 ,  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：US11184640B2

公开(公告)日：2021-11-23

申请号：US17006341

申请日：2020-08-28

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：US20200154134A1

公开(公告)日：2020-05-14

申请号：US16740822

申请日：2020-01-13

Applicant: LG Electronics Inc.

Inventor： Joon Young PARK ,  Seung Wook Park ,  Jae Hyun Lim ,  Jung Sun Kim ,  Young Hee Choi ,  Byeong Moon Jeon ,  Yong Joon Jeon

IPC: H04N19/56 ,  H04N19/61 ,  H04N19/44 ,  H04N19/176 ,  H04N19/139 ,  H04N19/124 ,  H04N19/117 ,  H04N19/107 ,  H04N19/513 ,  H04N19/52

Abstract: A method for selecting a motion vector predictor is provided. The method of selecting a motion vector predictor includes the steps of selecting motion vector predictor candidates for a current block and selecting a motion vector predictor of the current block out of the motion vector predictor candidates, wherein the motion vector predictor candidates for the current block include a motion vector of a first candidate block which is first searched for as an available block out of left neighboring blocks of the current block and a motion vector of a second candidate block which is first searched for as an available block out of upper neighboring blocks of the current block.