公开(公告)号：US12113964B2

公开(公告)日：2024-10-08

申请号：US18346697

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：US20240223800A1

公开(公告)日：2024-07-04

申请号：US18605285

申请日：2024-03-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/593 ,  H04N19/11 ,  H04N19/132 ,  H04N19/136 ,  H04N19/176 ,  H04N19/82

CPC classification number: H04N19/593 ,  H04N19/11 ,  H04N19/132 ,  H04N19/136 ,  H04N19/176 ,  H04N19/82

Abstract: A video decoding method includes predicting a current block according to an intra prediction mode of the current block, determining whether to apply position dependent intra prediction filtering to the current block according to the intra prediction mode of the current block, when the position dependent intra prediction filtering is applied to the current block, determining at least one of an upper reference sample, a left reference sample, an upper weight, and a left weight for the position dependent intra prediction filtering of a current sample of the current block according to the intra prediction mode of the current block, and applying the position dependent intra prediction filtering to the current sample of the current block according to at least one of the upper reference sample, the left reference sample, the upper weight, and the left weight.

公开(公告)号：US11962785B2

公开(公告)日：2024-04-16

申请号：US17967654

申请日：2022-10-17

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：US11943471B2

公开(公告)日：2024-03-26

申请号：US17962197

申请日：2022-10-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/105 ,  H04N19/119 ,  H04N19/44 ,  H04N19/577

CPC classification number: H04N19/577 ,  H04N19/105 ,  H04N19/119 ,  H04N19/44

Abstract: A video decoding method includes determining, based on an area of a current block, whether a multi-prediction combination mode for predicting the current block by combining prediction results obtained according to a plurality of prediction modes is applied to the current block, when the multi-prediction combination mode is applied to the current block, determining the plurality of prediction modes to be applied to the current block, generating a plurality of prediction blocks of the current block, according to the plurality of prediction modes, and determining a combined prediction block of the current block, by combining the plurality of prediction blocks according to respective weights.

公开(公告)号：US11910007B2

公开(公告)日：2024-02-20

申请号：US17962156

申请日：2022-10-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/105 ,  H04N19/119 ,  H04N19/44 ,  H04N19/577

CPC classification number: H04N19/577 ,  H04N19/105 ,  H04N19/119 ,  H04N19/44

Abstract: A video decoding method includes determining, based on an area of a current block, whether a multi-prediction combination mode for predicting the current block by combining prediction results obtained according to a plurality of prediction modes is applied to the current block, when the multi-prediction combination mode is applied to the current block, determining the plurality of prediction modes to be applied to the current block, generating a plurality of prediction blocks of the current block, according to the plurality of prediction modes, and determining a combined prediction block of the current block, by combining the plurality of prediction blocks according to respective weights.

公开(公告)号：US11871030B2

公开(公告)日：2024-01-09

申请号：US18185982

申请日：2023-03-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seungsoo Jeong ,  Minwoo Park

IPC: H04N19/176 ,  H04N7/12 ,  H04N19/523 ,  H04N19/103 ,  H04N19/513

CPC classification number: H04N19/523 ,  H04N19/103 ,  H04N19/176 ,  H04N19/513

Abstract: Provided is a video decoding method including: obtaining, from a sequence parameter set, sequence merge mode with motion vector difference (sequence MMVD) information indicating whether an MMVD mode is applicable in a current sequence; when the MMVD mode is applicable according to the sequence MMVD information, obtaining, from a bitstream, first MMVD information indicating whether the MMVD mode is applied in a first inter prediction mode for a current block included in the current sequence; when the MMVD mode is applicable in the first inter prediction mode according to the first MMVD information, reconstructing a motion vector of the current block which is to be used in the first inter prediction mode, by using a distance of a motion vector difference and a direction of a motion vector difference obtained from the bitstream; and reconstructing the current block by using the motion vector of the current block.

公开(公告)号：US11800103B2

公开(公告)日：2023-10-24

申请号：US17689402

申请日：2022-03-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Minsoo Park ,  Minwoo Park ,  Kiho Choi ,  Seungsoo Jeong

IPC: H04N19/82 ,  H04N19/119 ,  H04N19/117 ,  H04N19/176

CPC classification number: H04N19/119 ,  H04N19/117 ,  H04N19/176 ,  H04N19/82

Abstract: An image decoding method includes reconstructing a current image by performing deblocking filtering on a boundary of at least one reconstruction block from among reconstruction blocks, wherein the reconstructing of the current image by performing the deblocking filtering on the boundary of the at least one reconstruction block from among the reconstruction blocks includes, when a prediction mode of at least one reconstruction mode from among blocks located on both sides of the boundary of the at least one reconstruction block is a combined inter-intra prediction mode, determining that a value of a boundary filtering strength applied to the boundary of the at least one reconstruction block is a predetermined value and performing deblocking filtering on the boundary of the at least one reconstruction block based on the determined value of the boundary filtering strength.

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：US11412251B2

公开(公告)日：2022-08-09

申请号：US17228308

申请日：2021-04-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seungsoo Jeong ,  Minwoo Park ,  Yumi Sohn ,  Kiho Choi

IPC: H04N19/53 ,  H04N19/109 ,  H04N19/176

Abstract: Provided are a video encoding and decoding method and apparatus for obtaining, in a video encoding and decoding process, motion vector resolution information from a bit stream by using a high-level syntax which is a group of information that is applied to a predefined data unit group; determining a motion vector resolution of a current block included in the predefined data unit group based on the motion vector resolution information; determining a prediction motion vector of the current block to be a motion vector of a candidate block from among at least one candidate block, based on the motion vector resolution of the current block; and determining a motion vector of the current block by using the prediction motion vector of the current block.

公开(公告)号：US11388435B2

公开(公告)日：2022-07-12

申请号：US17228269

申请日：2021-04-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seungsoo Jeong ,  Minwoo Park ,  Yumi Sohn ,  Kiho Choi

IPC: H04N19/53 ,  H04N19/109 ,  H04N19/176

Abstract: Provided are a video encoding and decoding method and apparatus for obtaining, in a video encoding and decoding process, motion vector resolution information from a bit stream by using a high-level syntax which is a group of information that is applied to a predefined data unit group; determining a motion vector resolution of a current block included in the predefined data unit group based on the motion vector resolution information; determining a prediction motion vector of the current block to be a motion vector of a candidate block from among at least one candidate block, based on the motion vector resolution of the current block; and determining a motion vector of the current block by using the prediction motion vector of the current block.