公开(公告)号：US11825117B2

公开(公告)日：2023-11-21

申请号：US16959726

申请日：2019-01-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yinji Piao ,  Elena Alshina ,  Alexander Alshin ,  Anish Tamse

IPC: H04N19/615 ,  H04N19/105 ,  H04N19/109 ,  H04N19/117 ,  H04N19/176 ,  H04N19/423

CPC classification number: H04N19/615 ,  H04N19/105 ,  H04N19/109 ,  H04N19/117 ,  H04N19/176 ,  H04N19/423

Abstract: Provided is a video decoding method including: determining an inter prediction mode of a current block when the current block is inter-predicted; determining at least one reference sample location to be referred to by the current block, based on the inter prediction mode of the current block; determining filter information to be applied to at least one reconstructed reference sample corresponding to the at least one reference sample location, based on the inter prediction mode of the current block; performing filtering on the at least one reconstructed reference sample, based on the filter information; and decoding the current block by using prediction samples generated via the filtering.

公开(公告)号：US20230353729A1

公开(公告)日：2023-11-02

申请号：US18346704

申请日：2023-07-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seungsoo JEONG ,  Gahyun Ryu ,  Minsoo Park ,  Minwoo Park ,  Kiho Choi ,  Narae Choi ,  Woongil Choi ,  Anish Tamse ,  Yinji Piao

IPC: H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/177 ,  H04N19/91

CPC classification number: H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/177 ,  H04N19/91

Abstract: Disclosed is an image decoding method according to an embodiment, the image decoding method including: obtaining a first reference block and a second reference block, for bi-directional prediction of a current block; obtaining, from a bitstream, weight information for combining the first reference block with the second reference block; performing entropy decoding on the weight information to obtain a weight index; combining the first reference block with the second reference block according to a candidate value indicated by the weight index among candidate values included in a weight candidate group; and reconstructing the current block based on a result of the combining, wherein a first binary value corresponding to the weight index is entropy-decoded based on a context model, and the remaining binary value corresponding to the weight index is entropy-decoded by a bypass method.

公开(公告)号：US11509906B2

公开(公告)日：2022-11-22

申请号：US17271087

申请日：2019-08-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Anish Tamse ,  Woongil Choi ,  Minwoo Park ,  Seungsoo Jeong ,  Yinji Piao ,  Gahyun Ryu ,  Kiho Choi ,  Narae Choi ,  Minsoo Park

IPC: H04N19/137 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/513

Abstract: Provided is an image decoding method including determining a current chroma block having a rectangular shape corresponding to a current luma block included in one of a plurality of luma blocks, determining a piece of motion information for the current chroma block and a chroma block adjacent to the current chroma block by using motion information of the current chroma block and the adjacent chroma block, and performing inter prediction on the current chroma block and the adjacent chroma block by using the piece of motion information for the current chroma block and the adjacent chroma block to generate prediction blocks of the current chroma block and the adjacent chroma block.

公开(公告)号：US20220174288A1

公开(公告)日：2022-06-02

申请号：US17675410

申请日：2022-02-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Minwoo PARK ,  Minsoo Park ,  Kwangpyo Choi ,  Kiho Choi ,  Yinji Piao

IPC: H04N19/139 ,  H04N19/176 ,  H04N19/105 ,  H04N19/172 ,  H04N19/52 ,  H04N19/11

Abstract: A method, performed by an image decoding apparatus, of decoding a motion vector, including obtaining information indicating a motion vector resolution of a current block from a bitstream; selecting a first neighboring block from among neighboring blocks adjacent to the current block, by using the obtained information indicating the motion vector resolution of the current block; based on the current block referring to a reference picture in a list 0, and the first neighboring block referring to the reference picture in the list 0, determining a prediction motion vector of the current block using a motion vector of the first neighboring block; based on the current block referring to the reference picture in the list 0 and the first neighboring block referring to a reference picture in a list 1, selecting a motion vector of a second neighboring block among the neighboring blocks as a basic motion vector, and determining the prediction motion vector of the current block using the determined basic motion vector; and determining a motion vector of the current block using the prediction motion vector of the current block.

公开(公告)号：US11350089B2

公开(公告)日：2022-05-31

申请号：US17071600

申请日：2020-10-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Narae Choi ,  Minwoo Park ,  Chanyul Kim ,  Minsoo Park ,  Yumi Sohn ,  Seungsoo Jeong ,  Kiho Choi ,  Woongil Choi ,  Anish Tamse ,  Yinji Piao

IPC: H04N11/02 ,  H04N19/11 ,  H04N19/176

Abstract: Provided are a video decoding method and apparatus and a video encoding method and apparatus which determine whether to use a Most Probable Mode (MPM) list, based on encoding information of a current block, obtain, from a bitstream, intra prediction mode index information indicating one of candidate intra prediction modes included in the MPM list, and determine an intra prediction mode of the current block by using the obtained intra prediction mode index information.

公开(公告)号：US12231646B2

公开(公告)日：2025-02-18

申请号：US17880840

申请日：2022-08-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yinji Piao ,  Kyungah Kim ,  Quockhanh Dinh ,  Minsoo Park

IPC: H04N19/132 ,  H04N19/105 ,  H04N19/176 ,  H04N19/30

Abstract: An image processing apparatus including a memory storing instructions, and a processor configured to operate based on the instructions to reconstruct a current block from encoded data of the current block, obtain a quantization error map including sample values calculated based on a quantization parameter included in the encoded data, obtain a first modified block by applying the current block and the quantization error map to a neural network, obtain a first differential block between the current block and the first modified block, obtain a second differential block by changing sample values of the first differential block based on a parameter dependent on a feature of the current block, and obtain a second modified block by combining the current block and the second differential block.

公开(公告)号：US20240276011A1

公开(公告)日：2024-08-15

申请号：US18427172

申请日：2024-01-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Giyong Choi ,  Minwoo Park ,  Kwangpyo Choi ,  Yinji Piao

IPC: H04N19/577 ,  H04N19/105 ,  H04N19/139 ,  H04N19/172 ,  H04N19/176 ,  H04N19/52 ,  H04N19/573

CPC classification number: H04N19/577 ,  H04N19/105 ,  H04N19/139 ,  H04N19/172 ,  H04N19/176 ,  H04N19/52 ,  H04N19/573

Abstract: An image decoding method, including: obtaining a motion vector of at least one temporal neighboring block included in at least one of a first reference picture and a second reference picture; deriving one or more motion vector candidates from the motion vector of the at least one temporal neighboring block, wherein each motion vector candidate of the one or more motion vector candidates includes a first motion vector indicating a block within the first reference picture and a second motion vector indicating a block within the second reference picture; selecting a motion vector candidate for a current interpolation block from among the one or more motion vector candidates; generating the current interpolation block using a first block within the first reference picture indicated by the first motion vector included in the selected motion vector candidate and a second block within the second reference picture indicated by the second motion vector included in the selected motion vector candidate; and reconstructing a current block using the current interpolation block.

公开(公告)号：US20240223783A1

公开(公告)日：2024-07-04

申请号：US18602566

申请日：2024-03-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Woongil Choi ,  Gahyun Ryu ,  Minsoo Park ,  Minwoo Park ,  Seungsoo Jeong ,  Kwangpyo Choi ,  Kiho Choi ,  Narae Choi ,  Anish Tamse ,  Yinji Piao

IPC: H04N19/174 ,  H04N19/105 ,  H04N19/119 ,  H04N19/172 ,  H04N19/70

CPC classification number: H04N19/174 ,  H04N19/105 ,  H04N19/119 ,  H04N19/172 ,  H04N19/70

Abstract: Provided is a video decoding method including obtaining identification information of a first tile and identification information of a last tile from a bitstream, wherein the first and last tiles are included in a first slice, determining an index difference between the first tile and the last tile, based on a result of comparing the identification information of the first tile with the identification information of the last tile, determining the number of tiles included in the first slice, by using the index difference between the first tile and the last tile, and decoding a plurality of tiles included in the first slice according to an encoding order by using the number of tiles included in the first slice, the identification information of the first tile, and the identification information of the last tile.

公开(公告)号：US12028514B2

公开(公告)日：2024-07-02

申请号：US17566389

申请日：2021-12-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Minwoo Park ,  Seungsoo Jeong ,  Minsoo Park ,  Kiho Choi ,  Woongil Choi ,  Yinji Piao

IPC: H04N19/105 ,  H04N19/139 ,  H04N19/174 ,  H04N19/176 ,  H04N19/52 ,  H04N19/573 ,  H04N19/119

CPC classification number: H04N19/105 ,  H04N19/139 ,  H04N19/174 ,  H04N19/176 ,  H04N19/52 ,  H04N19/573 ,  H04N19/119

Abstract: A method, performed by a decoding apparatus, of decoding motion information, including: obtaining change information indicating whether to change motion information of a neighboring block of a current block; based on the change information indicating to change the motion information, determining a prediction direction of the current block by changing a prediction direction of the neighboring block; based on the prediction direction of the neighboring block being a first uni-direction and the prediction direction of the current block being a second uni-direction or a bi-direction, selecting a reference picture of the second uni-direction of the current block from a second reference picture list; obtaining a motion vector of the second uni-direction of the current block; and reconstructing the current block using a reference block indicated by the motion vector of the second uni-direction of the current block.

公开(公告)号：US12015781B2

公开(公告)日：2024-06-18

申请号：US17975001

申请日：2022-10-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Anish Tamse ,  Woongil Choi ,  Minwoo Park ,  Seungsoo Jeong ,  Yinji Piao ,  Gahyun Ryu ,  Kiho Choi ,  Narae Choi ,  Minsoo Park

IPC: H04N19/137 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/513

CPC classification number: H04N19/137 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/513

Abstract: Provided is an image decoding method including determining a current chroma block having a rectangular shape corresponding to a current luma block included in one of a plurality of luma blocks, determining a piece of motion information for the current chroma block and a chroma block adjacent to the current chroma block by using motion information of the current chroma block and the adjacent chroma block, and performing inter prediction on the current chroma block and the adjacent chroma block by using the piece of motion information for the current chroma block and the adjacent chroma block to generate prediction blocks of the current chroma block and the adjacent chroma block.