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公开(公告)号：US20240323431A1
公开(公告)日：2024-09-26
申请号：US18734611
申请日：2024-06-05
发明人： Sung Chang LIM , Jung Won KANG , Hyun Suk KO , Dong San JUN , Jin Ho LEE , Ha Hyun LEE , Hui Yong KIM
IPC分类号： H04N19/523 , H04N19/124 , H04N19/13 , H04N19/176
CPC分类号： H04N19/523 , H04N19/176 , H04N19/124 , H04N19/13
摘要： Disclosed is an image encoding method. The method includes deriving a motion refinement candidate from among motion information of spatial neighboring blocks, motion information of a temporal neighboring blocks, predefined motion information, and motion information that most frequently occurs in a reference picture, performing a motion information refinement on the derived motion refinement candidate, and generating a prediction block of a current block by using the motion refinement candidate having undergone the motion information refinement.
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2.发明公开公开(公告)号：US20230353776A1
公开(公告)日：2023-11-02
申请号：US18346732
申请日：2023-07-03
发明人： Ha Hyun LEE , Jung Won KANG , Hyun Suk KO , Sung Chang LIM , Jin Ho LEE , Dong San JUN , Seung Hyun CHO , Hui Yong KIM , Jin Soo CHOI
IPC分类号： H04N19/513 , H04N19/105 , H04N19/139 , H04N19/176 , H04N19/537
CPC分类号： H04N19/521 , H04N19/105 , H04N19/139 , H04N19/176 , H04N19/537
摘要： The present invention relates to a method for encoding and decoding an image. The method for decoding an image includes: deriving an initial motion vector from a merge candidate list of a current block; deriving a refined motion vector using the initial motion vector; and generating a prediction block of the current block using the refined motion vector.
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公开(公告)号：US20240137503A1
公开(公告)日：2024-04-25
申请号：US18403620
申请日：2024-01-03
发明人： Hyun Suk KO , Jin Ho LEE , Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Dong San JUN , Hui Yong KIM
IPC分类号： H04N19/11 , H04N19/105 , H04N19/132 , H04N19/176 , H04N19/46 , H04N19/50 , H04N19/593 , H04N19/70 , H04N19/80
CPC分类号： H04N19/11 , H04N19/105 , H04N19/132 , H04N19/176 , H04N19/46 , H04N19/50 , H04N19/593 , H04N19/70 , H04N19/80
摘要： An image encoding/decoding method is disclosed. A method of decoding an image, the method comprising, deriving an intra prediction mode for a current block, decoding at least one original sample that is present in a rightmost column and a bottommost row (a bottom row) of the current block, constructing a reference sample by using the at least one decoded original sample and performing intra prediction on the current block by using the constructed reference sample.
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公开(公告)号：US20230370618A1
公开(公告)日：2023-11-16
申请号：US18358844
申请日：2023-07-25
发明人： Dong San JUN , Sung Chang LIM , Jung Won KANG , Hyun Suk KO , Jin Ho LEE , Ha Hyun LEE , Hui Yong KIM
IPC分类号： H04N19/159 , H04N19/176 , H04N19/11
CPC分类号： H04N19/159 , H04N19/176 , H04N19/11
摘要： An image encoding/decoding method and apparatus for performing template matching-based intra prediction are provided. An image decoding method may comprise deriving a first intra-prediction mode for a current block, generating a first intra-prediction block corresponding to the first intra-prediction mode, deriving a second intra-prediction mode for the current block, generating a second intra-prediction block corresponding to the second intra-prediction mode, and generating a final intra-prediction block by using a weighted sum of the first intra-prediction block and the second intra-prediction block.
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公开(公告)号：US20240236307A9
公开(公告)日：2024-07-11
申请号：US18403620
申请日：2024-01-03
发明人： Hyun Suk KO , Jin Ho LEE , Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Dong San JUN , Hui Yong KIM
IPC分类号： H04N19/11 , H04N19/105 , H04N19/132 , H04N19/176 , H04N19/46 , H04N19/50 , H04N19/593 , H04N19/70 , H04N19/80
CPC分类号： H04N19/11 , H04N19/105 , H04N19/132 , H04N19/176 , H04N19/46 , H04N19/50 , H04N19/593 , H04N19/70 , H04N19/80
摘要： An image encoding/decoding method is disclosed. A method of decoding an image, the method comprising, deriving an intra prediction mode for a current block, decoding at least one original sample that is present in a rightmost column and a bottommost row (a bottom row) of the current block, constructing a reference sample by using the at least one decoded original sample and performing intra prediction on the current block by using the constructed reference sample.
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公开(公告)号：US20240196010A1
公开(公告)日：2024-06-13
申请号：US18586194
申请日：2024-02-23
发明人： Hyun Suk KO , Sung Chang LIM , Jung Won KANG , Jin Ho LEE , Ha Hyun LEE , Dong San JUN , Hui Yong KIM
IPC分类号： H04N19/593 , H04N19/176 , H04N19/184
CPC分类号： H04N19/593 , H04N19/176 , H04N19/184
摘要： The present invention relates to an image encoding/decoding method and apparatus. The image decoding method according to the present invention may comprise configuring an MPM list based on intra-prediction modes of neighbor blocks of a current block and a number of frequencies of the intra-prediction modes of the neighbor blocks, deriving an intra-prediction mode of the current block based on the MPM list, and performing intra-prediction for the current block based on the intra-prediction mode.
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公开(公告)号：US20230353735A1
公开(公告)日：2023-11-02
申请号：US18346728
申请日：2023-07-03
发明人： Hyun Suk KO , Sung Chang LIM , Jung Won KANG , Jin Ho LEE , Ha Hyun LEE , Dong San JUN , Hui Yong KIM
IPC分类号： H04N19/117 , H04N19/105 , H04N19/14 , H04N19/159 , H04N19/176
CPC分类号： H04N19/117 , H04N19/105 , H04N19/14 , H04N19/159 , H04N19/176
摘要： The present invention relates to an image encoding and decoding method. An image decoding method for the same includes: determining a reference sample of a current block; performing filtering for the reference sample on the basis of a feature of an area where the reference sample is included; and performing intra-prediction by using the reference sample for which filtering is performed.
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8.发明公开公开(公告)号：US20230344992A1
公开(公告)日：2023-10-26
申请号：US18346735
申请日：2023-07-03
发明人： Dong San JUN , Ha Hyun LEE , Jung Won KANG , Hyun Suk KO , Sung Chang LIM , Jin Ho LEE , Seung Hyun CHO , Hui Yong KIM , Jin Soo CHOI
IPC分类号： H04N19/109 , H04N19/176 , H04N19/91 , H04N19/513 , H04N19/182 , H04N19/132 , H04N19/172 , H04N19/117 , H04N19/174 , H04N19/86 , H04N19/119
CPC分类号： H04N19/109 , H04N19/176 , H04N19/91 , H04N19/513 , H04N19/182 , H04N19/132 , H04N19/172 , H04N19/117 , H04N19/174 , H04N19/86 , H04N19/119
摘要： An image encoding method and an image decoding method are provided. The image decoding method includes deriving a temporal merge candidate from a co-located block of a current block, generating a merge candidate list of the current block based on the derived temporal merge candidate, and generating a prediction block of the current block based on the generated merge candidate list. The deriving a temporal merge candidate includes scaling a motion vector derived from the co-located block based on a POC difference value between the current block and a reference picture of the current block and a POC difference value between the co-located block and a reference picture of the co-located block, and modifying the scaled motion vector based on motion vector scaling information between a neighboring block of the current block and a co-located block of the neighboring block.
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9.发明公开公开(公告)号：US20240305778A1
公开(公告)日：2024-09-12
申请号：US18668051
申请日：2024-05-17
发明人： Dong San JUN , Ha Hyun LEE , Jung Won KANG , Hyun Suk KO , Sung Chang LIM , Jin Ho LEE , Seung Hyun CHO , Hui Yong KIM , Jin Soo CHOI
IPC分类号： H04N19/109 , H04N19/117 , H04N19/119 , H04N19/132 , H04N19/172 , H04N19/174 , H04N19/176 , H04N19/182 , H04N19/513 , H04N19/86 , H04N19/91
CPC分类号： H04N19/109 , H04N19/117 , H04N19/119 , H04N19/132 , H04N19/172 , H04N19/174 , H04N19/176 , H04N19/182 , H04N19/513 , H04N19/86 , H04N19/91
摘要： An image encoding method and an image decoding method are provided. The image decoding method includes deriving a temporal merge candidate from a co-located block of a current block, generating a merge candidate list of the current block based on the derived temporal merge candidate, and generating a prediction block of the current block based on the generated merge candidate list. The deriving a temporal merge candidate includes scaling a motion vector derived from the co-located block based on a POC difference value between the current block and a reference picture of the current block and a POC difference value between the co-located block and a reference picture of the co-located block, and modifying the scaled motion vector based on motion vector scaling information between a neighboring block of the current block and a co-located block of the neighboring block.
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10.发明公开公开(公告)号：US20240155150A1
公开(公告)日：2024-05-09
申请号：US18409711
申请日：2024-01-10
发明人： Ha Hyun LEE , Jung Won KANG , Hyun Suk KO , Sung Chang LIM , Jin Ho LEE , Dong San JUN , Seung Hyun CHO , Hui Yong KIM , Jin Soo CHOI
IPC分类号： H04N19/513 , H04N19/105 , H04N19/139 , H04N19/176 , H04N19/537
CPC分类号： H04N19/521 , H04N19/105 , H04N19/139 , H04N19/176 , H04N19/537
摘要： The present invention relates to a method for encoding and decoding an image. The method for decoding an image includes: deriving an initial motion vector from a merge candidate list of a current block; deriving a refined motion vector using the initial motion vector; and generating a prediction block of the current block using the refined motion vector.
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