公开(公告)号：US20250126292A1

公开(公告)日：2025-04-17

申请号：US19002238

申请日：2024-12-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/593 ,  H04N19/11 ,  H04N19/132 ,  H04N19/136 ,  H04N19/176 ,  H04N19/82

Abstract: A video decoding method includes predicting a current block according to an intra prediction mode of the current block, determining whether to apply position dependent intra prediction filtering to the current block according to the intra prediction mode of the current block, when the position dependent intra prediction filtering is applied to the current block, determining at least one of an upper reference sample, a left reference sample, an upper weight, and a left weight for the position dependent intra prediction filtering of a current sample of the current block according to the intra prediction mode of the current block, and applying the position dependent intra prediction filtering to the current sample of the current block according to at least one of the upper reference sample, the left reference sample, the upper weight, and the left weight.

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：US12219174B2

公开(公告)日：2025-02-04

申请号：US18605375

申请日：2024-03-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/593 ,  H04N19/11 ,  H04N19/132 ,  H04N19/136 ,  H04N19/176 ,  H04N19/82

Abstract: A video decoding method includes predicting a current block according to an intra prediction mode of the current block, determining whether to apply position dependent intra prediction filtering to the current block according to the intra prediction mode of the current block, when the position dependent intra prediction filtering is applied to the current block, determining at least one of an upper reference sample, a left reference sample, an upper weight, and a left weight for the position dependent intra prediction filtering of a current sample of the current block according to the intra prediction mode of the current block, and applying the position dependent intra prediction filtering to the current sample of the current block according to at least one of the upper reference sample, the left reference sample, the upper weight, and the left weight.

公开(公告)号：US12132914B2

公开(公告)日：2024-10-29

申请号：US17835553

申请日：2022-06-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/159 ,  H04N19/105 ,  H04N19/119 ,  H04N19/132 ,  H04N19/176 ,  H04N19/593

CPC classification number: H04N19/159 ,  H04N19/105 ,  H04N19/119 ,  H04N19/132 ,  H04N19/176 ,  H04N19/593

Abstract: Provided are a video encoding or decoding method and apparatus, which, during video encoding and decoding processes, determine whether an intra prediction mode of the current block is a DC mode, when the intra prediction mode of the current block is the DC mode, in a case where lengths of a height and a width of the current block are the same, determine an average of upper reference samples of the current block and left reference samples of the current block, as a DC value, and in a case where the lengths of the height and the width of the current block are different from each other, determine a weighted average value, which is determined by determining an average of the upper reference samples of the current block as an upper DC value, determine an average of the left reference samples of the current block as a left DC value, and combining the upper value and the left DC value with a predetermined weight, as a DC value, and perform intra prediction on the current block, based on the DC value.

公开(公告)号：US12081745B2

公开(公告)日：2024-09-03

申请号：US17551483

申请日：2021-12-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Narae Choi ,  Minwoo Park ,  Minsoo Park

IPC: H04N19/117 ,  H04N19/107 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/196 ,  H04N19/503 ,  H04N19/593 ,  H04N19/61 ,  H04N19/82

CPC classification number: H04N19/117 ,  H04N19/107 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/196 ,  H04N19/503 ,  H04N19/593 ,  H04N19/61 ,  H04N19/82

Abstract: Provided is a video decoding method including: obtaining constrained prediction information indicating whether a constrained intra prediction mode is enabled; generating reconstructed samples of a current block by using prediction samples of the current block and residual samples of the current block; when the constrained intra prediction mode is enabled by the constrained prediction information and a prediction mode of a neighboring block is not an intra prediction mode, determining a padding value corresponding to a neighboring sample adjacent to outside of a boundary between the current block and the neighboring block, by using the reconstructed samples of the current block; and performing post-reconstruction filtering on the current block, by using the padding value corresponding to the neighboring sample.

公开(公告)号：US12079749B2

公开(公告)日：2024-09-03

申请号：US17946749

申请日：2022-09-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Minsoo Park ,  Minwoo Park

IPC: G06Q10/063 ,  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：US12022073B2

公开(公告)日：2024-06-25

申请号：US17426981

申请日：2020-01-30

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：US11973941B2

公开(公告)日：2024-04-30

申请号：US17827239

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：US11968370B2

公开(公告)日：2024-04-23

申请号：US17980986

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

CPC classification number: H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/96

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：US11949905B2

公开(公告)日：2024-04-02

申请号：US17981597

申请日：2022-11-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Anish Tamse ,  Minwoo Park ,  Minsoo Park

IPC: H04N19/00 ,  H04N19/107 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176 ,  H04N19/196 ,  H04N19/40 ,  H04N19/513 ,  H04N19/52

CPC classification number: H04N19/52 ,  H04N19/107 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176 ,  H04N19/196 ,  H04N19/40 ,  H04N19/513

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.