公开(公告)号：US11902513B2

公开(公告)日：2024-02-13

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

CPC classification number: 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：US20230388510A1

公开(公告)日：2023-11-30

申请号：US18328572

申请日：2023-06-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/132 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46 ,  H04N19/80

CPC classification number: H04N19/132 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46 ,  H04N19/80

Abstract: Provided is a video decoding method including: obtaining, from a bitstream, intra prediction mode information indicating an intra prediction mode of a current block; determining an interpolation filter set to be used in prediction of the current block, based on at least one of a size of the current block and the intra prediction mode indicated by the intra prediction mode information; determining a reference location to which a current sample of the current block refers according to the intra prediction mode; determining, in the interpolation filter set, an interpolation filter that corresponds to the reference location; determining a prediction value of the current sample, according to reference samples of the current block and the interpolation filter; and reconstructing the current block, based on the prediction value of the current sample.

公开(公告)号：US20230038846A1

公开(公告)日：2023-02-09

申请号：US17962245

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: H04N19/577 ,  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：US11516483B2

公开(公告)日：2022-11-29

申请号：US17299193

申请日：2019-12-09

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

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：US20220375030A1

公开(公告)日：2022-11-24

申请号：US17752347

申请日：2022-05-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Narae Choi ,  Sungho Lee ,  Woongil Choi

IPC: G06T3/40 ,  G06T7/246

Abstract: An artificial intelligence (AI)-based frame interpolation method includes obtaining, from among consecutive frames of an image, feature maps for a first frame at a plurality of levels and feature maps for a second frame at the plurality of levels, obtaining, via a flow estimation neural network, a first optical flow from a first feature map at a certain level to a second feature map at the certain level and a second optical flow from the second feature map at the certain level to the first feature map at the certain level, and obtaining a forward-warped first feature map by forward-warping the first feature map using the first optical flow and a forward-warped second feature map by forward-warping the second feature map using the second optical flow.

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：US11272209B2

公开(公告)日：2022-03-08

申请号：US16970564

申请日：2019-04-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ramkumaar KK ,  Sri Nitchith Akula ,  Chirag Mahesh Kumar Pujara ,  Anubhav Singh ,  Akhil Konda ,  Raj Narayana Gadde ,  Amith Dsouza ,  Nishant Sharma ,  Kwangpyo Choi ,  Woongil Choi

IPC: H04N19/597 ,  H04N19/14 ,  H04N13/139 ,  H04N13/10

Abstract: Provided are methods and apparatus for determining an adjustment parameter during encoding of a spherical multimedia content which comprises finding the region of maximum concentrated energy is concentrated in the generated energy map of the spherical multimedia content, measuring the width of the maximum concentrated energy region in the generated energy map, and deriving optimal adjustment parameter from the width of the maximum concentrated energy region in the generated energy map.

公开(公告)号：US20220030236A1

公开(公告)日：2022-01-27

申请号：US17492250

申请日：2021-10-01

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: H04N19/119 ,  H04N19/103 ,  H04N19/176 ,  H04N19/184 ,  H04N19/186 ,  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：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.