公开(公告)号：US20220109834A1

公开(公告)日：2022-04-07

申请号：US17416984

申请日：2019-12-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seungsoo JEONG ,  Anish TAMSE ,  Minsoo PARK ,  Minwoo PARK

IPC: H04N19/119 ,  H04N19/176 ,  H04N19/105 ,  H04N19/52 ,  H04N19/91

Abstract: According to an embodiment, provided is an image decoding method including obtaining, from a bitstream, information related to a triangle prediction mode for a current block; splitting the current block into two triangular partitions, according to the information related to a triangle prediction mode; generaling a merge list for a triangle prediction mode, according to a merge list generation method in a regular merge mode; selecting a motion vector for the two triangular partitions according to information indicating the motion vector from among motion vectors included in the merge list; obtaining, from a reference image, prediction blocks corresponding to the two triangular partitions, based on the motion vector; and reconstructing the current block, based on a final prediction block.

公开(公告)号：US20220014730A1

公开(公告)日：2022-01-13

申请号：US17294164

申请日：2019-11-15

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 ,  H04N19/91 ,  H04N19/159 ,  H04N19/177 ,  H04N19/176

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：US20210266557A1

公开(公告)日：2021-08-26

申请号：US17251305

申请日：2019-06-11

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 ,  H04N19/80 ,  H04N19/159 ,  H04N19/46 ,  H04N19/176

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：US20210235114A1

公开(公告)日：2021-07-29

申请号：US17228234

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：US20200351517A1

公开(公告)日：2020-11-05

申请号：US16934228

申请日：2020-07-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

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

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：US20200314446A1

公开(公告)日：2020-10-01

申请号：US16954639

申请日：2019-01-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Anish TAMSE ,  Minwoo PARK ,  Seungsoo JEONG ,  Jinyoung LEE

IPC: H04N19/52 ,  H04N19/59 ,  H04N19/176 ,  H04N19/122 ,  H04N19/186

Abstract: Provided are a method and apparatus for, in a video encoding and decoding procedure, selecting a candidate motion vector of a current block from a motion vector candidate list of the current block, determining a motion vector of the current block by performing a motion search based on the candidate motion vector, performing motion compensation by using the determined motion vector of the current block, and applying local luminance compensation to the current block based on whether the local luminance compensation is to be applied to the current block, wherein a cost function used for performing the motion search is determined based on whether the local luminance compensation is to be applied to the current block.

公开(公告)号：US20250150628A1

公开(公告)日：2025-05-08

申请号：US19011923

申请日：2025-01-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kiho CHOI ,  Minsoo PARK ,  Minwoo PARK ,  Woongil CHOI ,  Yinji PIAO ,  Seungsoo JEONG ,  Narae CHOI ,  Anish TAMSE

IPC: H04N19/625 ,  H04N19/105 ,  H04N19/136 ,  H04N19/176 ,  H04N19/186 ,  H04N19/503 ,  H04N19/593 ,  H04N19/70

Abstract: Provided is an image decoding method including: obtaining, from a bitstream, a syntax element regarding multiple transform selection (MTS) with respect to a current coding unit or a current transform unit included in the current coding unit; determining a horizontal transform kernel or a vertical transform kernel with respect to the current transform unit based on the obtained syntax element; obtaining a residual signal by performing inverse transformation on the current transform unit, based on the determined horizontal transform kernel or vertical transform kernel with respect to the current transform unit; and generating a reconstruction block including the current coding unit or the current transform unit based on the residual signal with respect to the current transform unit.

公开(公告)号：US20250080771A1

公开(公告)日：2025-03-06

申请号：US18950458

申请日：2024-11-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/573 ,  H04N19/105 ,  H04N19/117 ,  H04N19/139 ,  H04N19/176 ,  H04N19/70

Abstract: A method of decoding motion information may include: obtaining, from a bitstream, change information indicating whether to change motion information of a neighboring block; when the change information indicates a change of the motion information and a higher block is able to use one reference picture list, identifying the number of pictures included in the reference picture list of the current block; selecting, as a reference picture of the current block, a reference picture of the neighboring block based on the number of pictures; when the reference picture of the neighboring block is selected as the reference picture of the current block, obtaining a motion vector of the current block by applying an offset to a motion vector of the neighboring block; and reconstructing the current block by using a reference block indicated by the motion vector of the current block in the reference picture of the current block.

公开(公告)号：US20240314294A1

公开(公告)日：2024-09-19

申请号：US18674107

申请日：2024-05-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yinji PIAO ,  Anish TAMSE ,  Minsoo PARK ,  Minwoo PARK ,  Seungsoo JEONG ,  Kiho CHOI ,  Narae CHOI ,  Woongil CHOI

IPC: H04N19/105 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/196

CPC classification number: H04N19/105 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/196

Abstract: Proposed is a video decoding method including: determining a weight of a residual sample of a Cr component and a weight of a residual sample of a Cb component, based on a prediction type of a coding unit, cbf information for the Cr component, and cbf information of the Cb component, obtaining a chroma joint residual sample of a current block from a bitstream, reconstructing the residual sample of the Cr component by using the chroma joint residual sample of the current block and the weight of the residual sample of the Cr component, and reconstructing the residual sample of the Cb component by using the chroma joint residual sample of the current block and the weight of the residual sample of the Cb component.

公开(公告)号：US20240107060A1

公开(公告)日：2024-03-28

申请号：US18531345

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

CPC classification number: 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.