公开(公告)号：US20240073425A1

公开(公告)日：2024-02-29

申请号：US18237150

申请日：2023-08-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Quockhanh DINH ,  Hyungmin ROH ,  Minwoo PARK ,  Kwangpyo CHOI

IPC: H04N19/139 ,  H04N19/172 ,  H04N19/42 ,  H04N19/52

CPC classification number: H04N19/139 ,  H04N19/172 ,  H04N19/42 ,  H04N19/52

Abstract: An image encoding method based on artificial intelligence (AI) includes obtaining motion vector feature data of a current frame by inputting the current frame and a reference frame to a motion vector encoder and applying a plurality of resolution scales to the current frame and the reference frame via the motion vector encoder; obtaining a current motion vector by inputting the motion vector feature data to a motion vector decoder; obtaining a current predicted image based on the current motion vector and the reference frame; and generating a bitstream based on the motion vector feature data and the current predicted image.

公开(公告)号：US20240073414A1

公开(公告)日：2024-02-29

申请号：US18502779

申请日：2023-11-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/11 ,  H04N19/105 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176

CPC classification number: H04N19/11 ,  H04N19/105 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176

Abstract: Provided are video encoding/decoding methods and apparatuses for determining an intra prediction mode of a current block, based on a width and height of the current block. When the current block has a square shape in which the width and height are equal, the intra prediction mode of the current block is determined from among first intra prediction mode candidates including a plurality of predetermined intra prediction directions, and when the current block has a non-square shape in which the width and height are not equal, the intra prediction mode of the current block is determined from among second intra prediction mode candidates configured based on the non-square shape.

公开(公告)号：US20230353727A1

公开(公告)日：2023-11-02

申请号：US18346610

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：US20230319277A1

公开(公告)日：2023-10-05

申请号：US18329386

申请日：2023-06-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Minwoo PARK ,  Minsoo PARK ,  Anish TAMSE

IPC: H04N19/119 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186 ,  H04N19/60

CPC classification number: H04N19/119 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186 ,  H04N19/60 ,  H04N19/42

Abstract: Provided is a video decoding method including: generating coding units by splitting at least one of a height and a width of a largest coding unit having a first size; based on whether a height or a width of a non-square first coding unit including an outer boundary of an image, among the coding units, is greater than a maximum transform size, determining whether it is allowed to generate two second coding units by splitting at least one of the height and the width of the first coding unit; and decoding the second coding units generated from the first coding unit.

公开(公告)号：US20230069175A1

公开(公告)日：2023-03-02

申请号：US17981597

申请日：2022-11-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Anish TAMSE ,  Minwoo PARK ,  Minsoo PARK

IPC: H04N19/52 ,  H04N19/107 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176 ,  H04N19/196 ,  H04N19/40

Abstract: Provided are a video decoding method and apparatus for, in a video encoding and decoding procedure, when a merge candidate list of a current block is configured, determining whether the number of merge candidates included in the merge candidate list is greater than 1 and is smaller than a predetermined maximum merge candidate number, when the number of the merge candidates included in the merge candidate list is greater than 1 and is smaller than the predetermined maximum merge candidate number, determining an additional merge candidate by using a first merge candidate and a second merge candidate of the merge candidate list of the current block, configuring the merge candidate list by adding the determined additional merge candidate to the merge candidate list, and performing prediction on the current block, based on the merge candidate list.

公开(公告)号：US20230047715A1

公开(公告)日：2023-02-16

申请号：US17981015

申请日：2022-11-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/132 ,  H04N19/186 ,  H04N19/96 ,  H04N19/159 ,  H04N19/176

Abstract: Provided are a method and apparatus, which, during video encoding and decoding processes, obtain chroma intra prediction mode information about a current chroma block, when the chroma intra prediction mode information indicates a direct mode (DM), determine a luma block including a luma sample corresponding to a chroma sample at a lower-right location with respect to a center of the current chroma block, determine a chroma intra prediction mode of the current chroma block based on an intra prediction mode of the determined luma block, and perform intra prediction on the current chroma block, based on the determined chroma intra prediction mode.

公开(公告)号：US20230032531A1

公开(公告)日：2023-02-02

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: H04N19/577 ,  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：US20220201299A1

公开(公告)日：2022-06-23

申请号：US17691732

申请日：2022-03-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Minsoo PARK ,  Minwoo PARK ,  Kiho CHOI ,  Seungsoo JEONG

IPC: 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：US20220201298A1

公开(公告)日：2022-06-23

申请号：US17691702

申请日：2022-03-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Minsoo PARK ,  Minwoo PARK ,  Kiho CHOI ,  Seungsoo JEONG

IPC: 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：US20220174288A1

公开(公告)日：2022-06-02

申请号：US17675410

申请日：2022-02-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Minwoo PARK ,  Minsoo Park ,  Kwangpyo Choi ,  Kiho Choi ,  Yinji Piao

IPC: H04N19/139 ,  H04N19/176 ,  H04N19/105 ,  H04N19/172 ,  H04N19/52 ,  H04N19/11

Abstract: A method, performed by an image decoding apparatus, of decoding a motion vector, including obtaining information indicating a motion vector resolution of a current block from a bitstream; selecting a first neighboring block from among neighboring blocks adjacent to the current block, by using the obtained information indicating the motion vector resolution of the current block; based on the current block referring to a reference picture in a list 0, and the first neighboring block referring to the reference picture in the list 0, determining a prediction motion vector of the current block using a motion vector of the first neighboring block; based on the current block referring to the reference picture in the list 0 and the first neighboring block referring to a reference picture in a list 1, selecting a motion vector of a second neighboring block among the neighboring blocks as a basic motion vector, and determining the prediction motion vector of the current block using the determined basic motion vector; and determining a motion vector of the current block using the prediction motion vector of the current block.