公开(公告)号：US20240236368A9

公开(公告)日：2024-07-11

申请号：US18278758

申请日：2022-02-24

申请人： LG Electronics Inc.

发明人： Seunghwan KIM ,  Seethal PALURI ,  Jie ZHAO

IPC分类号： H04N19/593 ,  H04N19/11 ,  H04N19/119 ,  H04N19/132 ,  H04N19/136 ,  H04N19/176

CPC分类号： H04N19/593 ,  H04N19/11 ,  H04N19/119 ,  H04N19/132 ,  H04N19/136 ,  H04N19/176

摘要： According to one embodiment of the present document, a method by which a decoding device decodes an image is provided. The method comprises the steps of: acquiring, from a bitstream, image information including decoder side intra mode derivation (DIMD)-related information; determining whether a DIMD mode is applied to the current block on the basis of the DIMD-related information; deriving an intra prediction mode for the current block on the basis of the determined result; and generating prediction samples for the current block on the basis of the intra prediction mode.

公开(公告)号：US20240205424A1

公开(公告)日：2024-06-20

申请号：US17909943

申请日：2021-03-05

申请人： LG ELECTRONICS INC.

发明人： Hendry HENDRY ,  Seethal PALURI ,  Seunghwan KIM ,  Jie ZHAO

IPC分类号： H04N19/174 ,  H04N19/119 ,  H04N19/46 ,  H04N19/96

CPC分类号： H04N19/174 ,  H04N19/119 ,  H04N19/46 ,  H04N19/96

摘要： According to a disclosure of the present document, information/parameter related to splitting of a picture can be signaled on the basis of a no-picture partition flag, information related to a tile, and information related to a slice, unnecessary redundant signaling can be removed accordingly, and the number of bits assigned to the signaling can be reduced, thereby deriving an effect of increasing an overall coding efficiency.

公开(公告)号：US20240163453A1

公开(公告)日：2024-05-16

申请号：US18403388

申请日：2024-01-03

申请人： LG ELECTRONICS INC.

发明人： Jane ZHAO ,  Seethal PALURI ,  Seunghwan KIM

IPC分类号： H04N19/159 ,  H04N19/105 ,  H04N19/137 ,  H04N19/176

CPC分类号： H04N19/159 ,  H04N19/105 ,  H04N19/137 ,  H04N19/176

摘要： The disclosure discloses a method for processing a video signal and an apparatus therefor. Specifically, a method of processing a video signal based on inter prediction includes constructing a first merge candidate list of a current block using a spatial merge candidate and temporal merge candidate of the current block, constructing a second merge candidate list by adding a history-based merge candidate indicating motion information of a block coded prior to the current block to the first merge candidate list, obtaining a merge index indicating a merge candidate applied to the current block within the second merge candidate list, and generating a prediction block of the current block using motion information of a merge candidate indicated by the merge index. The history-based merge candidate may be added to the first merge candidate list if the history-based merge candidate has motion information not overlapping motion information of a pre-defined merge candidate among merge candidates included in the first merge candidate list.

公开(公告)号：US20240146919A1

公开(公告)日：2024-05-02

申请号：US18407985

申请日：2024-01-09

申请人： LG ELECTRONICS INC.

发明人： Seethal PALURI ,  Seunghwan KIM

IPC分类号： H04N19/117 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/82

CPC分类号： H04N19/117 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/82

摘要： According to the disclosure of the present document, information regarding ALF filter coefficients may be encoded/decoded by fixed order-based exponential golomb coding. In addition, information regarding a fixed filter in ALF may be binarized by fixed-length coding. Accordingly, signaling efficiency can be increased, and coding complexity can be decreased.

公开(公告)号：US20240129475A1

公开(公告)日：2024-04-18

申请号：US18399123

申请日：2023-12-28

申请人： LG ELECTRONICS INC.

发明人： Hendry HENDRY ,  Seethal PALURI ,  Seunghwan KIM

IPC分类号： H04N19/132 ,  H04N19/174 ,  H04N19/176 ,  H04N19/70

CPC分类号： H04N19/132 ,  H04N19/174 ,  H04N19/176 ,  H04N19/70

摘要： A method by which a video decoding device decodes a video, according to the present document, can comprise the steps of: parsing, from a bitstream, number information related to the number of slices of which the height within a tile of a current picture is explicitly signaled; parsing, from the bitstream, on the basis of the number information, height information related to the height of the slices of which the height is explicitly signaled; deriving the number of slices in the tile on the basis of the number information and the height information; generating prediction samples by predicting the current block of the current picture on the basis of the slices within the tile; generating reconstructed samples on the basis of the prediction samples; and generating a reconstructed picture for the current picture on the basis of the reconstructed samples.

公开(公告)号：US20240080447A1

公开(公告)日：2024-03-07

申请号：US18381446

申请日：2023-10-18

申请人： LG ELECTRONICS INC.

发明人： Seethal PALURI ,  Hendry HENDRY ,  Seunghwan KIM ,  Jie ZHAO

IPC分类号： H04N19/132 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/46 ,  H04N19/70

CPC分类号： H04N19/132 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/46 ,  H04N19/70

摘要： A video decoding method performed by a video decoding device according to the present document comprises the steps of: acquiring image information from a bitstream, the image information including a picture header associated with the current picture including a plurality of slices; parsing, from the picture header, a first flag indicating whether information necessary for an inter-prediction operation for a decoding process is present in the picture header; parsing, from the picture header, a second flag indicating whether information necessary for an intra-prediction operation for the decoding process is present in the picture header; and generating prediction samples by performing at least one of intra-prediction or inter-prediction for the slices in the current picture on the basis of the first flag or the second flag.

公开(公告)号：US20240056566A1

公开(公告)日：2024-02-15

申请号：US18382246

申请日：2023-10-20

申请人： LG Electronics Inc.

发明人： Seethal PALURI ,  Hendry HENDRY ,  Jie ZHAO ,  Seunghwan KIM

IPC分类号： H04N19/105 ,  H04N19/132 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/503 ,  H04N19/70

CPC分类号： H04N19/105 ,  H04N19/132 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/503 ,  H04N19/70

摘要： A video decoding method performed by a video decoding apparatus, according to the present document, comprises the steps of: parsing, from a bitstream, flags associated with weighted prediction; parsing a prediction weighted table syntax from a picture header of the bitstream on the basis of the flags; generating prediction samples regarding a current block in a current picture on the basis of syntax elements in the prediction weighted table syntax; and generating reconstructed samples on the basis of the prediction samples, wherein the flags comprise a first flag associated with whether the weighted prediction is applied to slices referring to a picture parameter set of the bitstream, and a second flag associated with whether information related to the weighted prediction is present in the picture header, and the second flag may be parsed from the picture parameter set on the basis of the first flag.

公开(公告)号：US20240031575A1

公开(公告)日：2024-01-25

申请号：US18222230

申请日：2023-07-14

申请人： LG ELECTRONICS INC.

发明人： Hendry HENDRY ,  Seung Hwan KIM ,  Seethal PALURI

IPC分类号： H04N19/136 ,  H04N19/172 ,  H04N19/174

CPC分类号： H04N19/136 ,  H04N19/172 ,  H04N19/174

摘要： Disclosed herein are an image encoding/decoding method and apparatus. An image decoding method performed by an image encoding apparatus may include acquiring size information indicating a size of a current slice corresponding to at least a portion of a current picture from a bitstream and determining the size of the current slice based on the size information.

公开(公告)号：US20240015294A1

公开(公告)日：2024-01-11

申请号：US18131763

申请日：2023-04-06

申请人： LG ELECTRONICS INC.

发明人： Jie ZHAO ,  Seung Hwan KIM ,  Hendry HENDRY ,  Seethal PALURI

IPC分类号： H04N19/132 ,  H04N19/176 ,  H04N19/18 ,  H04N19/186 ,  H04N19/70

CPC分类号： H04N19/132 ,  H04N19/176 ,  H04N19/18 ,  H04N19/186 ,  H04N19/70

摘要： An image encoding/decoding method and apparatus are provided. The image decoding method performed by the image decoding apparatus, according to the present disclosure, comprises the steps of: determining a current block by splitting an image on the basis of split information acquired from a bitstream; determining a quantization parameter of the current block; and determining a transform coefficient of the current block on the basis of the quantization parameter.

公开(公告)号：US20230319302A1

公开(公告)日：2023-10-05

申请号：US17915928

申请日：2021-03-31

申请人： LG ELECTRONICS INC.

发明人： Hendry HENDRY ,  Seethal PALURI ,  Seung Hwan KIM

IPC分类号： H04N19/503 ,  H04N19/105 ,  H04N19/184 ,  H04N19/31

CPC分类号： H04N19/503 ,  H04N19/105 ,  H04N19/184 ,  H04N19/31

摘要： An image encoding/decoding method and apparatus is provided. The image decoding method performed by the image decoding apparatus may comprise determining inter-layer direct reference and determining the number of sublayers of a current layer based on the inter-layer direct reference.