公开(公告)号：US11451781B2

公开(公告)日：2022-09-20

申请号：US17125545

申请日：2020-12-17

申请人： KT CORPORATION

发明人： Bae Keun Lee

IPC分类号： H04N19/132 ,  H04N19/105 ,  H04N19/176 ,  H04N19/11 ,  H04N19/117 ,  H04N19/186 ,  H04N19/86 ,  H04N19/96 ,  H04N19/82 ,  H04N19/70 ,  H04N19/159

摘要： A method for decoding a video according to the present invention may comprise: deriving a reference sample for a current block, determining an intra prediction mode of the current block, and obtaining a prediction sample for the current block by using the reference sample and the intra prediction mode.

公开(公告)号：US11450044B2

公开(公告)日：2022-09-20

申请号：US16359001

申请日：2019-03-20

申请人： KT CORPORATION

发明人： Zu-Cheul Lee ,  Kyung-Kuk Kim ,  Yong-Beom Yi

IPC分类号： G06T11/60 ,  G06T5/00 ,  G06T5/20 ,  G06T11/00 ,  G06T19/00

摘要： Provided is a method and a device for creating and displaying a multilayer augmented reality image. The device may include a photographing circuit configured to capture images of a real environment and an image processor configured to create an AR content, extract at least one object from the captured images of the real environment, display the captured images of real environment as a first layer, display the created AR content as a second layer and overlay the second layer on the first layer, and display the extracted object as an object image layer and overlay the object image layer on the second layer.

公开(公告)号：US20220295056A1

公开(公告)日：2022-09-15

申请号：US17636966

申请日：2020-08-28

申请人： KT CORPORATION

发明人： Sung Won LIM

IPC分类号： H04N19/117 ,  H04N19/186 ,  H04N19/159 ,  H04N19/176 ,  H04N19/167 ,  H04N19/132 ,  H04N19/593

摘要： An image decoding method according to the disclosure comprises the steps of: determining whether a cross-component linear model (CCLM) mode is applied to a chroma block; acquiring a filtered neighboring luma sample with respect to a neighboring chroma sample adjacent to the chroma block, when it is determined that the CCLM mode is applied to the chroma block; deriving a CCLM parameter by using the neighboring chroma sample and the filtered neighboring luma sample; and generating a prediction block for the chroma block by using the CCLM parameter.

公开(公告)号：US11445194B2

公开(公告)日：2022-09-13

申请号：US17125315

申请日：2020-12-17

申请人： KT CORPORATION

发明人： Bae Keun Lee

IPC分类号： H04N19/124 ,  H04N19/96 ,  H04N19/60 ,  H04N19/103 ,  H04N19/44 ,  H04N19/196 ,  H04N19/119 ,  H04N19/174 ,  H04N19/13 ,  H04N19/159 ,  H04N19/176

摘要： A method for decoding a video according to the present invention may comprise: deriving a spatial merge candidate for a current block, generating a merge candidate list for the current block based on the spatial merge candidate, obtaining motion information for the current block based on the merge candidate list, and performing motion compensation for the current block based on the motion information. Herein, if the current block does not have a pre-defined shape or a size equal to or greater than a pre-defined size, the spatial merge candidate of the current block may be derived based on a block which have the pre-defined shape or a size equal to or greater than the pre-defined size, the block including the current block.

公开(公告)号：US11445178B2

公开(公告)日：2022-09-13

申请号：US17124929

申请日：2020-12-17

申请人： KT CORPORATION

发明人： Bae Keun Lee

IPC分类号： H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/107 ,  H04N19/70 ,  H04N19/119 ,  H04N19/182 ,  H04N19/10 ,  H04N19/44

摘要： A method for decoding a video according to the present invention may comprise: deriving a plurality of reference sample lines for a current block, selecting at least one among the plurality of reference sample lines, determining whether to apply an intra filter to a reference sample included in the selected reference sample line, selectively applying the intra filter to the reference sample according to the determination, and performing intra prediction for the current block using the reference sample.

公开(公告)号：US11432019B2

公开(公告)日：2022-08-30

申请号：US17126922

申请日：2020-12-18

申请人： KT CORPORATION

发明人： Bae Keun Lee

IPC分类号： H04N19/91 ,  H04N19/96 ,  H04N19/124 ,  H04N19/176 ,  H04N19/44 ,  H04N19/174 ,  H04N19/132 ,  H04N19/46 ,  H04N19/119 ,  H04N19/70 ,  H04N19/159

摘要： A method for decoding a video according to the present invention may comprise: determining whether to divide a current block with quad tree partitioning, and dividing the current block into four partitions based on a vertical line and a horizontal line when it is determined that the current block is divided with the quad tree partitioning.

公开(公告)号：US11412246B2

公开(公告)日：2022-08-09

申请号：US17057231

申请日：2019-06-07

申请人： KT CORPORATION

发明人： Bae Keun Lee

IPC分类号： H04N19/51 ,  H04N19/105 ,  H04N19/176

摘要： An image decoding method according to the present invention can comprise the steps of: deriving merge candidates from neighboring blocks adjacent to a current block; generating a merge candidate list including the merge candidates, wherein the arrangement order of the merge candidates in the merge candidate list is determined on the basis of initial priorities; re-arranging the merge candidates included in the merge candidate list; decoding information for specifying at least one of the merge candidates included in the merge candidate list; and deriving motion information of the current block from a merge candidate corresponding to the information.

公开(公告)号：US20220240283A1

公开(公告)日：2022-07-28

申请号：US17613726

申请日：2020-03-06

申请人： KT CORPORATION

发明人： Sung-pyo HONG

IPC分类号： H04W72/12 ,  H04L1/18 ,  H04L5/00

摘要： Provided are apparatus and method for communication in a non-terrestrial network (NTN). The method may include: receiving, from a base station, HARQ process activation indication information indicating whether to activate an HARQ process operation; determining whether to perform the HARQ process operation for a downlink signal on the basis of information included in the downlink signal when the downlink signal is received from the base station if the HARQ process operation deactivation is configured by the HARQ process activation indication information; and transmitting, to the base station, feedback information for the downlink signal when performing the HARQ process operation for the downlink signal is determined.

公开(公告)号：US11375340B2

公开(公告)日：2022-06-28

申请号：US16983917

申请日：2020-08-03

申请人： KT CORPORATION

发明人： Ki-tae Kim

IPC分类号： H04W4/029 ,  G01S5/10

摘要： Provided are a method and an apparatus for performing positioning. The method of a user equipment (UE) may include: receiving configuration information about a positioning reference signal (PRS) including subcarrier spacing information to be applied when the PRS is transmitted in each cell; receiving the PRS from each cell based on the subcarrier spacing information; and measuring a reference signal time difference (RSTD) based on the received PRS.

公开(公告)号：US20220191470A1

公开(公告)日：2022-06-16

申请号：US17688049

申请日：2022-03-07

申请人： KT CORPORATION

发明人： Bae Keun LEE

IPC分类号： H04N19/103 ,  H04N19/159 ,  H04N19/176 ,  H04N19/593

摘要： An image decoding method according to the present invention comprises the steps of: deriving most probable mode (MPM) candidates on the basis of an intra-prediction mode of candidate blocks; determining whether the MPM candidate having the intra-prediction mode, which is the same as that of a current block, exists among MPM candidates; and deriving the intra-prediction mode of the current block on the basis of the determination, wherein the candidate block includes a neighboring block which is adjacent to the current block, and a non-neighboring block which is not adjacent to the current block.