公开(公告)号：US11470347B2

公开(公告)日：2022-10-11

申请号：US17054347

申请日：2019-05-10

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

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：US20220295049A1

公开(公告)日：2022-09-15

申请号：US17826898

申请日：2022-05-27

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: 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：US11438614B2

公开(公告)日：2022-09-06

申请号：US16913583

申请日：2020-06-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Heechul Yang ,  Minsoo Park

IPC: H04B1/66 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/44 ,  H04N19/124 ,  H04N19/176 ,  H04N19/46 ,  H04N19/96

Abstract: Provided is an image decoding method including determining a predicted quantization parameter of a current quantization group determined according to at least one of block split information and block size information, determining a difference quantization parameter of the current quantization group, determining a quantization parameter of the current quantization group, based on the predicted quantization parameter and the difference quantization parameter of the current quantization group, and inverse quantizing a current block included in the current quantization group, according to the quantization parameter of the current quantization group.

公开(公告)号：US11317109B2

公开(公告)日：2022-04-26

申请号：US16913583

申请日：2020-06-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Heechul Yang ,  Minsoo Park

IPC: H04B1/66 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/44 ,  H04N19/124 ,  H04N19/176 ,  H04N19/46 ,  H04N19/96

Abstract: Provided is an image decoding method including determining a predicted quantization parameter of a current quantization group determined according to at least one of block split information and block size information, determining a difference quantization parameter of the current quantization group, determining a quantization parameter of the current quantization group, based on the predicted quantization parameter and the difference quantization parameter of the current quantization group, and inverse quantizing a current block included in the current quantization group, according to the quantization parameter of the current quantization group.

公开(公告)号：US11140390B2

公开(公告)日：2021-10-05

申请号：US17052573

申请日：2019-05-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N11/02 ,  H04N19/119 ,  H04N19/184 ,  H04N19/186 ,  H04N19/176 ,  H04N19/103 ,  H04N19/60

Abstract: Provided is an image decoding method including: determining a first coding block and a second coding block corresponding to the first coding block; when a size of the first coding block is equal to or smaller than a preset size, obtaining first split shape mode information and second split shape mode information from a bitstream; determining a split mode of the first coding block, based on the first split shape mode information, and determining a split mode of the second coding block, based on the second split shape mode information; and decoding a coding block of a first color component which is determined based on the split mode of the first coding block and a coding block of a second color component which is determined based on the split mode of the second coding block.

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：US12184889B2

公开(公告)日：2024-12-31

申请号：US18531301

申请日：2023-12-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seungsoo Jeong ,  Minwoo Park ,  Minsoo Park

IPC: H04N19/53 ,  H04N19/139 ,  H04N19/176

Abstract: In a video encoding and decoding process, a video decoding method and a video decoding apparatus are provided to for determining whether a motion vector of an adjacent block at a location corresponding to one motion vector resolution among a plurality of motion vector resolutions is available, when the motion vector of the adjacent block is available, obtaining the motion vector of the adjacent block as a motion vector predictor of a current block, when the motion vector of the adjacent block is unavailable, obtaining a default motion vector by using a motion vector of one of two other adjacent blocks of the current block as a motion vector predictor of the current block, and performing prediction on the current block based on the motion vector predictor of the current block.

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：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.