公开(公告)号：US11665360B2

公开(公告)日：2023-05-30

申请号：US17563914

申请日：2021-12-28

申请人： LG ELECTRONICS INC.

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

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

CPC分类号： H04N19/44 ,  H04N19/11 ,  H04N19/176 ,  H04N19/184 ,  H04N19/196 ,  H04N19/587 ,  H04N19/61 ,  H04N19/70

摘要： 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 ultra 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：US11303893B2

公开(公告)日：2022-04-12

申请号：US17158695

申请日：2021-01-26

申请人： LG ELECTRONICS INC.

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

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

摘要： 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：US20210152822A1

公开(公告)日：2021-05-20

申请号：US17158695

申请日：2021-01-26

申请人： LG ELECTRONICS INC.

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

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

摘要： 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：US10999598B2

公开(公告)日：2021-05-04

申请号：US16740822

申请日：2020-01-13

申请人： LG Electronics Inc.

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

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

摘要： 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.

公开(公告)号：US10986372B2

公开(公告)日：2021-04-20

申请号：US16519897

申请日：2019-07-23

申请人： LG ELECTRONICS INC.

发明人： Jung Sun Kim ,  Seung Wook Park ,  Young Hee Choi ,  Jaewon Sung ,  Byeong Moon Jeon ,  Joon Young Park

IPC分类号： H04N19/625 ,  H04N19/61 ,  H04N19/129 ,  H04N19/18 ,  H04N19/149 ,  H04N19/119 ,  H04N19/122 ,  H04N19/176

摘要： 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.

公开(公告)号：US10887603B2

公开(公告)日：2021-01-05

申请号：US16572294

申请日：2019-09-16

申请人： LG Electronics Inc.

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

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

摘要： 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：US10609410B2

公开(公告)日：2020-03-31

申请号：US16194898

申请日：2018-11-19

申请人： LG ELECTRONICS INC.

发明人： 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分类号： H04N19/105 ,  H04N19/593 ,  H04N19/577 ,  H04N19/11 ,  H04N19/159 ,  H04N19/70 ,  H04N19/182 ,  H04N19/80

摘要： 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：US10091505B2

公开(公告)日：2018-10-02

申请号：US15648206

申请日：2017-07-12

申请人： LG ELECTRONICS INC.

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

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

摘要： 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：US10038912B2

公开(公告)日：2018-07-31

申请号：US15660760

申请日：2017-07-26

申请人： LG ELECTRONICS INC.

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

IPC分类号： H04N11/02 ,  H04N19/51 ,  H04N19/86 ,  H04N19/44 ,  H04N19/107 ,  H04N19/11 ,  H04N19/18 ,  H04N19/172 ,  H04N19/176 ,  H04N19/61

CPC分类号： H04N19/51 ,  H04N19/107 ,  H04N19/11 ,  H04N19/172 ,  H04N19/176 ,  H04N19/18 ,  H04N19/44 ,  H04N19/61 ,  H04N19/86

摘要： 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.

公开(公告)号：US10015523B2

公开(公告)日：2018-07-03

申请号：US15151257

申请日：2016-05-10

申请人： LG ELECTRONICS INC.

发明人： 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分类号： H04N19/91 ,  H04N19/13 ,  H04N19/146 ,  H04N19/154 ,  H04N19/52 ,  H04N19/70 ,  H04N19/159 ,  H04N19/593 ,  H04N19/463 ,  H04N19/184 ,  H04N19/174

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

摘要： 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.