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公开(公告)号：US20250097430A1
公开(公告)日：2025-03-20
申请号：US18968618
申请日：2024-12-04
Inventor： Sung Chang LIM , Jung Won KANG , Hyun Suk KO , Jin Ho LEE , Ha Hyun LEE , Dong San JUN , Seung Hyun CHO , Hui Yong KIM , Jin Soo CHOI
IPC: H04N19/137 , H04N19/105 , H04N19/13 , H04N19/146 , H04N19/159 , H04N19/176 , H04N19/44 , H04N19/51 , H04N19/513 , H04N19/91
Abstract: The present invention relates to a video encoding and decoding method. A video decoding method for the same may include: obtaining granularity information; determining a sharing region based on the granularity information; and generating a prediction block of a current block by using motion information of the sharing region when the current block corresponds to the sharing region.
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公开(公告)号：US20250080723A1
公开(公告)日：2025-03-06
申请号：US18951139
申请日：2024-11-18
Inventor： Jin Ho LEE , Jung Won KANG , Ha Hyun LEE , Sung Chang LIM , Hui Yong KIM
IPC: H04N19/105 , H04N19/11 , H04N19/119 , H04N19/174 , H04N19/176 , H04N19/186 , H04N19/70
Abstract: Provided are an image encoding/decoding method and device. An image decoding method according to the present invention comprises the steps of: determining an intra prediction mode of a current block; and generating a prediction block of the current block by performing prediction on the basis of the intra prediction mode of the current block. An intra prediction mode for a luminance block of the current block is derived by means of a most probable mode (MPM) list comprises a plurality of MPM candidates. The MPM list can be constructed independently from as to whether a plurality of reference sample lines are used and whether a divided prediction is performed by means of a sub-block.
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63.发明申请公开(公告)号：US20250080721A1
公开(公告)日：2025-03-06
申请号：US18949948
申请日：2024-11-15
Applicant: Electronics and Telecommunications Research Institute , UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
Inventor： Jung Won KANG , Ha Hyun LEE , Sung Chang LIM , Jin Ho LEE , Hui Yong KIM , Gwang Hoon PARK , Tae Hyun KIM , Dae Young LEE
IPC: H04N19/105 , H04N19/119 , H04N19/137 , H04N19/176
Abstract: Disclosed herein is an image encoding/decoding method. The method of decoding the image includes structuring a motion information candidate list of a current block, selecting a first motion information candidate used for prediction of a first subblock in the current block from the motion information candidate list, selecting a second motion information candidate used for prediction of a second subblock in the current block from the motion information candidate list, generating a prediction sample of the first subblock by performing inter prediction with respect to the first subblock based on the first motion information candidate, and generating a prediction sample of the second subblock by performing inter prediction with the second subblock based on the second motion information candidate. The first and second motion information candidates are any one of candidates in first and second prediction directions in the motion information candidate list, respectively.
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64.发明申请公开(公告)号：US20250047837A1
公开(公告)日：2025-02-06
申请号：US18923584
申请日：2024-10-22
Inventor： Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Jin Ho LEE , Hui Yong KIM
IPC: H04N19/105 , H04N19/137 , H04N19/176 , H04N19/51 , H04N19/96
Abstract: An image encoding/decoding method is disclosed. Present invention of the method of decoding an image comprises deriving motion information of a current block by using a candidate list, generating a prediction block of the current block by using the motion information of the current block and adding the motion information of the current block in the candidate list, wherein the candidate list is used for inter prediction of a block to be decoded after the current block.
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公开(公告)号：US20250039410A1
公开(公告)日：2025-01-30
申请号：US18918728
申请日：2024-10-17
Inventor： Sung Chang LIM , Hui Yong KIM , Se Yoon JEONG , Jong Ho KIM , Ha Hyun LEE , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/176 , H04N19/129 , H04N19/136
Abstract: Provided is a transform coefficient scan method including: determining a reference transform block for a decoding target block; deriving a scanning map of the decoding target block using scanning information of the reference transform block; and performing inverse scanning on a transform coefficient of the decoding target block using the derived scanning map. According to the present invention, picture encoding/decoding efficiency may be improved.
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Patent Agency Ranking
66.发明申请公开(公告)号：US20240388722A1
公开(公告)日：2024-11-21
申请号：US18785984
申请日：2024-07-26
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY
Inventor： Jin Ho LEE , Jung Won KANG , Ha Hyun LEE , Sung Chang LIM , Hui Yong KIM , Jae Gon KIM , Do Hyeon PARK , Ji Hoon DO , Yong Uk YOON
IPC: H04N19/176 , H04N19/119 , H04N19/18 , H04N19/50
Abstract: Disclosed herein is a video decoding method including determining a zero-out width threshold and a zero-out height threshold for distinguishing between a transform coefficient coding region and a zero-out region of a current block according to a size of the current block, determining the transform coefficient coding region and the zero-out region of the current block according to the zero-out width threshold and the zero-out height threshold, acquiring transform coefficient information of the transform coefficient coding region from a bitstream and determining a level of a transform coefficient of the transform coefficient coding region according to the transform coefficient information, determining a level of a transform coefficient of the zero-out region as 0 without acquiring transform coefficient information, and reconstructing the current block by inversely transforming the transform coefficient of the current block.
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公开(公告)号：US20240291991A1
公开(公告)日：2024-08-29
申请号：US18658426
申请日：2024-05-08
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY , INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY
Inventor： Jin Ho LEE , Jung Won KANG , Ha Hyun LEE , Sung Chang LIM , Hui Yong KIM , Jae Gon KIM , Do Hyeon PARK , Yong Uk YOON , Yung Lyul LEE
IPC: H04N19/13 , H04N19/172 , H04N19/184
CPC classification number: H04N19/13 , H04N19/172 , H04N19/184
Abstract: There is provided an video encoding/decoding method and apparatus. The video decoding method comprises acquiring a bitstream including a predetermined context element, performing at least one of a context model determination, a probability update, and a probability interval determination on the predetermined syntax element, and arithmetically decoding the predetermined syntax element on the basis of a result of the performance.
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68.发明公开公开(公告)号：US20240275968A1
公开(公告)日：2024-08-15
申请号：US18615773
申请日：2024-03-25
Inventor： Sung Chang LIM , Jung Won KANG , Jin Ho LEE , Ha Hyun LEE , Hui Yong KIM
IPC: H04N19/119 , H04N19/105 , H04N19/176 , H04N19/96
CPC classification number: H04N19/119 , H04N19/105 , H04N19/176 , H04N19/96
Abstract: In this specification, a image decoding method is disclosed. The image decoding method of the present invention comprises, decoding block partition information of a current block included in a current picture, determining a partitioning scheme for the current block according to the block partition information and partitioning the current block using the partitioning scheme determined, wherein the partitioning scheme is determined according to whether the current block includes a boundary of the current picture.
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公开(公告)号：US20240259556A1
公开(公告)日：2024-08-01
申请号：US18627311
申请日：2024-04-04
Inventor： Jin Ho LEE , Jung Won KANG , Ha Hyun LEE , Sung Chang LIM , Hui Yong KIM
IPC: H04N19/105 , H04N19/132 , H04N19/159 , H04N19/176
CPC classification number: H04N19/105 , H04N19/132 , H04N19/159 , H04N19/176
Abstract: Disclosed herein is a method of decoding an image including deriving intra prediction mode of a current block using an intra prediction mode of a neighbor block adjacent to the current block, constructing a reference sample of the current block, and performing intra prediction with respect to the current block using the intra prediction mode and the reference sample. The deriving of the intra prediction mode of the current block includes constructing a most probable mode (MPM) list based on whether the intra prediction mode of the current block is a Planar mode.
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70.发明公开公开(公告)号：US20240179320A1
公开(公告)日：2024-05-30
申请号：US18431917
申请日：2024-02-02
Applicant: Electronics and Telecommunications Research Institute , INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY , CHIPS&MEDIA, INC , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY
Inventor： Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Jin Ho LEE , Hui Yong KIM , Yung Lyul LEE , Ji Yeon JUNG , Nam Uk KIM , Myung Jun KIM , Yang Woo KIM , Dae Yeon KIM , Jae Gon KIM , Do Hyeon PARK
IPC: H04N19/132 , H04N19/105 , H04N19/159 , H04N19/176 , H04N19/186
CPC classification number: H04N19/132 , H04N19/105 , H04N19/159 , H04N19/176 , H04N19/186
Abstract: An image encoding/decoding method is provided. An image decoding method of the present invention may comprise deriving an intra-prediction mode of a current luma block, deriving an intra-prediction mode of a current chroma block based on the intra-prediction mode of the current luma block, generating a prediction block of the current chroma block based on the intra-prediction mode of the current chroma block, and the deriving of an intra-prediction mode of a current chroma block may comprise determining whether or not CCLM (Cross-Component Linear Mode) can be performed for the current chroma block.
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