公开(公告)号：US12167020B2

公开(公告)日：2024-12-10

申请号：US18086311

申请日：2022-12-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seungsoo Jeong ,  Minwoo Park ,  Kiho Choi ,  Anish Tamse

IPC: H04N7/12 ,  H04N19/109 ,  H04N19/139 ,  H04N19/176 ,  H04N19/513 ,  H04N19/91 ,  H04N19/70

Abstract: Provided is a video decoding method including: generating a merge candidate list including neighboring blocks referred to predict a motion vector of a current block in a skip mode or a merge mode; when a merge motion vector difference is used according to merge difference mode information indicating whether the merge motion vector difference and a motion vector determined from the merge candidate list are used, determining a base motion vector from a candidate determined among the merge candidate list based on merge candidate information; determining the motion vector of the current block by using the base motion vector and a merge motion vector difference of the current block, the merge motion vector difference being determined by using a distance index and direction index of the merge motion vector difference of the current block; and reconstructing the current block by using the motion vector of the current block.

公开(公告)号：US12149700B2

公开(公告)日：2024-11-19

申请号：US18148937

申请日：2022-12-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Anish Tamse ,  Minwoo Park

IPC: H04N19/137 ,  H04N19/105 ,  H04N19/13 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46

Abstract: Provided are a video decoding method and apparatus, in which, during video encoding and decoding processes: in which a first bin of a sub-block merge index indicating a candidate motion vector of a sub-block merge mode is obtained, the first bin being arithmetic-encoded using a context model, a second arithmetic-encoded in a bypass mode is obtained based on a first value obtained by arithmetic-decoding the first bin by using the context model, a second value is obtained by arithmetic-decoding the second bin in the bypass mode, and prediction on a current block is performed in the sub-block merge mode, based on the first value and the second value.

公开(公告)号：US20240320578A1

公开(公告)日：2024-09-26

申请号：US18680233

申请日：2024-05-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Minsoo PARK ,  Minwoo Park

IPC: G06Q10/0631 ,  G06Q10/0637 ,  G06Q10/0639 ,  H04N19/176 ,  H04N19/18 ,  H04N19/46

CPC classification number: G06Q10/06312 ,  G06Q10/0637 ,  G06Q10/0639 ,  H04N19/176 ,  H04N19/18 ,  H04N19/46

Abstract: An image decoding method may include obtaining a first coded block flag, when the first coded block flag of the current coding unit indicates that the current coding unit comprises the one or more non-zero significant transform coefficients, identifying whether at least one of a height and a width of the current coding unit is greater than a predetermined size, based on whether the at least one of the height and the width of the current coding unit is greater than the predetermined size, obtaining at least one transform unit, when the at least one of the height and the width of the current coding unit is greater than the predetermined size, obtaining a second coded block flag, obtaining a residual signal of the block of the luma component based on the second coded block flag, and reconstructing the current coding unit based on the residual signal.

公开(公告)号：US20240305781A1

公开(公告)日：2024-09-12

申请号：US18665651

申请日：2024-05-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Minsoo Park ,  Minwoo Park ,  Heechul Yang

IPC: H04N19/119 ,  H04N19/14 ,  H04N19/146 ,  H04N19/176

CPC classification number: H04N19/119 ,  H04N19/14 ,  H04N19/146 ,  H04N19/176

Abstract: A video decoding method includes: determining a largest size of a coding unit and a smallest size of the coding unit by using information about the largest size of the coding unit and information about the smallest size of the coding unit, the information being obtained from a bitstream; obtaining, from the bitstream, information about a largest size of a block allowed to be ternary split and information about a smallest size of the block allowed to be ternary split, determining the largest size of the block allowed to be ternary split, determining the smallest size of the block allowed to be ternary split, determining whether to ternary split a current block, and decoding blocks generated by ternary splitting the current 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.

公开(公告)号：US12010331B2

公开(公告)日：2024-06-11

申请号：US18160712

申请日：2023-01-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/119 ,  H04N19/122 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70

CPC classification number: H04N19/186 ,  H04N19/119 ,  H04N19/122 ,  H04N19/176 ,  H04N19/70

Abstract: Provided is an image decoding method including determining a plurality of coding units in a chroma image by hierarchically splitting the chroma image, based on a split shape mode of blocks in the chroma image of a current image, and decoding the current image, based on the plurality of coding units in the chroma image. In this regard, the determining of the plurality of coding units in the chroma image may include, when a size or an area of a chroma block from among a plurality of chroma blocks to be generated by splitting a current chroma block in the chroma image is equal to or smaller than a preset size or a preset area, not allowing splitting of the current chroma block based on a split shape mode of the current chroma block, and determining at least one coding unit included in the current chroma block.

公开(公告)号：US11985326B2

公开(公告)日：2024-05-14

申请号：US17728222

申请日：2022-04-25

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Minwoo Park ,  Minsoo Park ,  Narae Choi ,  Seungsoo Jeong ,  Anish Tamse

IPC: H04N19/137 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176

CPC classification number: H04N19/137 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176

Abstract: A video decoding method includes, determining a center motion vector of a current block by using a base motion vector of the current block based on affine model-based inter-prediction being performed in the current block, determining a reference range of an area to be referred to, with respect to the current block, based on a size of the current block, based on a reference area having a size of the reference range with respect to a point in a reference picture of the current block, the point being indicated by a central motion vector of the current block, deviating from or including a boundary of the reference picture, changing the reference area by parallelly translating the reference area into a current picture, and determining prediction samples of sub-blocks of the current block in the changed reference area from the reference picture.