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11.发明公开公开(公告)号：US20240073445A1
公开(公告)日：2024-02-29
申请号：US18504867
申请日：2023-11-08
Inventor： Ha Hyun LEE , Jung Won KANG , Sung Chang LIM , Jin Ho LEE , Hui Yong KIM , Dae Yeon KIM , Dong Jin PARK
IPC: H04N19/55 , H04N19/182 , H04N19/563
CPC classification number: H04N19/55 , H04N19/182 , H04N19/563
Abstract: Disclosed is a method of decoding an image and a method of encoding an image. The method of decoding an image includes: obtaining motion-constrained tile set information; determining, on the basis of the motion-constrained tile set information, a first boundary region of a collocated tile set within a reference picture, which corresponds to a motion-constrained tile set; padding a second boundary region corresponding to the first boundary region; and performing inter prediction on the motion-constrained tile set by using a collocated tile set that includes the padded second boundary region.
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公开(公告)号：US20240056583A1
公开(公告)日：2024-02-15
申请号：US18464472
申请日：2023-09-11
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 , H04N19/159 , H04N19/176 , H04N19/513 , H04N19/51 , H04N19/44 , H04N19/91 , H04N19/146
CPC classification number: H04N19/137 , H04N19/105 , H04N19/13 , H04N19/159 , H04N19/176 , H04N19/513 , H04N19/51 , H04N19/44 , H04N19/91 , H04N19/146
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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13.发明公开公开(公告)号：US20240048761A1
公开(公告)日：2024-02-08
申请号：US18489149
申请日：2023-10-18
Inventor： Hyun Suk KO , Ha Hyun LEE , Sung Chang LIM , Jung Won KANG , Jin Ho LEE , Dong San JUN , Hui Yong KIM
IPC: H04N19/593 , H04N19/11 , H04N19/176
CPC classification number: H04N19/593 , H04N19/11 , H04N19/176
Abstract: The present invention relates to an image encoding/decoding method and apparatus. The image decoding method according to the present invention may comprise reconstructing an intra prediction mode of a current block, determining a reference sample for intra prediction of the current block, and generating a prediction block of the current block by performing the intra prediction on the current block on the basis of the intra prediction mode and the reference sample. The determining of the reference sample or the intra prediction may be performed on the basis of a shape of the current block.
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14.发明公开公开(公告)号：US20240048693A1
公开(公告)日：2024-02-08
申请号：US18486461
申请日：2023-10-13
Inventor： Jin Ho LEE , Sung Chang LIM , Jung Won KANG , Hyun Suk KO , Dong San JUN , Ha Hyun LEE , Seung Hyun CHO , Hui Yong KIM , Jin Soo CHOI
IPC: H04N19/107 , H04N19/176 , H04N19/117 , H04N19/147 , H04N19/119 , H04N19/11 , H04N19/105 , H04N19/30 , H04N19/91 , H04N19/146 , H04N19/44 , H04N19/126 , H04N19/52
CPC classification number: H04N19/107 , H04N19/176 , H04N19/117 , H04N19/147 , H04N19/119 , H04N19/11 , H04N19/105 , H04N19/30 , H04N19/91 , H04N19/146 , H04N19/44 , H04N19/126 , H04N19/52
Abstract: The present invention relates to an image encoding/decoding method and apparatus. An image decoding method performing intra prediction according to the present invention may comprise dividing a current block into at least one sub-block; deriving an intra prediction mode for the at least one sub-block; constructing a reference sample for the intra prediction; and performing intra prediction for the at least one sub-block based on the derived intra prediction mode.
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15.发明公开公开(公告)号：US20240022753A1
公开(公告)日：2024-01-18
申请号：US18363282
申请日：2023-08-01
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
Inventor： Sung Chang LIM , Hae Chul CHOI , Se Yoon JEONG , Suk Hee CHO , Hui Yong KIM , Jin Ho LEE , Ha Hyun LEE , Jong Ho KIM , Jin Soo CHOI , Jin Woong KIM , Gwang Hoon PARK , Kyung Yong KIM , Dong Gyu SIM , Seoung Jun OH
IPC: H04N19/50 , H04N19/132 , H04N19/46 , H04N19/11 , H04N19/147 , H04N19/169 , H04N19/176
CPC classification number: H04N19/50 , H04N19/132 , H04N19/46 , H04N19/11 , H04N19/147 , H04N19/169 , H04N19/176 , H04N19/593
Abstract: Provided are an encoding device using predictive coding in a screen and a method thereof, and a decoding device and a method thereof. The encoding device is capable of generating a prediction block of a current block according to one of methods for generating a plurality of predetermined prediction blocks, and outputting at least one of encoding information and differential blocks as bitstream by entropy encoding according to whether differential blocks are encoded or not.
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Patent Agency Ranking
16.发明公开公开(公告)号：US20240015323A1
公开(公告)日：2024-01-11
申请号：US18468512
申请日：2023-09-15
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
IPC: H04N19/593 , H04N19/107 , H04N19/127 , H04N19/159 , H04N19/176 , H04N19/196 , H04N19/503 , G06T9/00 , H04N19/189
CPC classification number: H04N19/593 , H04N19/107 , H04N19/127 , H04N19/159 , H04N19/176 , H04N19/196 , H04N19/503 , G06T9/004 , H04N19/189 , H04N19/132
Abstract: Disclosed herein is a method of decoding an image. The method includes generating an inter prediction block by performing inter prediction with respect to a current block, generating an intra prediction block by performing intra prediction with respect to the current block, determining a first weight and a second weight, and generating a final prediction block by respectively applying the first weight and the second weight to the inter prediction block and the intra prediction block. The generating of the intra prediction block includes generating the intra prediction block using a predefined intra prediction mode.
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17.发明公开公开(公告)号：US20230421757A1
公开(公告)日：2023-12-28
申请号：US18241393
申请日：2023-09-01
Inventor： Dong San JUN , Jin Ho LEE , Jung Won KANG , Hyun Suk KO , Sung Chang LIM , Ha Hyun LEE , Seung Hyun CHO , Hui Yong KIM , Jin Soo CHOI
IPC: H04N19/11 , H04N19/176 , H04N19/593
CPC classification number: H04N19/11 , H04N19/593 , H04N19/176
Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method of the present invention comprises decoding first information indicating whether a maximum of N intra prediction modes are used or a maximum of M intra prediction modes are used for an intra prediction for a current block, in which the M is smaller than the N, deriving an intra prediction mode of the current block, inverse-mapping the derived intra prediction mode on a corresponding intra prediction mode among the maximum N intra prediction modes when the decoded first information indicates that the maximum M intra prediction modes are used for the intra prediction for the current block, and generating an intra prediction block by performing an intra prediction for the current block, based on the inverse-mapped intra prediction mode.
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公开(公告)号：US20230396769A1
公开(公告)日：2023-12-07
申请号：US18451596
申请日：2023-08-17
Inventor： Sung Chang LIM , Hui Yong KIM , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/126 , H04N19/159 , H04N19/61 , H04N19/196 , H04N19/70 , H04N19/50 , H04N19/463
CPC classification number: H04N19/126 , H04N19/159 , H04N19/61 , H04N19/196 , H04N19/70 , H04N19/50 , H04N19/463 , H04N19/198 , H04N19/176
Abstract: The present invention relates to a method for encoding and decoding a quantized matrix and an apparatus using same, the method for encoding a quantized matrix according to the present invention comprising the steps of: determining a quantization matrix to be used for quantization and quantizing; determining the prediction method used for the quantization of the quantization matrix; and encoding quantization matrix information on the basis of the determined prediction method, wherein the prediction method can be either a prediction method between coefficients in the quantization matrix or a duplicate of the quantization matrix.
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公开(公告)号：US20230353731A1
公开(公告)日：2023-11-02
申请号：US18345301
申请日：2023-06-30
Inventor： Jin Ho LEE , Hui Yong KIM , Sung Chang LIM , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/11 , H04N19/107 , H04N19/176 , H04N19/184 , H04N19/44 , H04N19/91
CPC classification number: H04N19/11 , H04N19/107 , H04N19/176 , H04N19/184 , H04N19/44 , H04N19/91
Abstract: An image decoding method, according to the present invention, includes the steps of: deriving an MPM candidate mode from neighboring blocks adjacent to a target block to be decoded; generating an MPM list using the MPM candidate mode derived from the neighboring blocks; and deriving an intra prediction mode for the target block to be decoded using the generated MPM list. According to the present invention, image compression efficiency can be improved.
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20.发明公开公开(公告)号：US20230308644A1
公开(公告)日：2023-09-28
申请号：US18317800
申请日：2023-05-15
Inventor： Jung Won KANG , Ha Hyun LEE , Sung Chang LIM , Jin Ho LEE , Hui Yong KIM
IPC: H04N19/107 , H04N19/119 , H04N19/139 , H04N19/176 , H04N19/573
CPC classification number: H04N19/107 , H04N19/119 , H04N19/139 , H04N19/176 , H04N19/573 , H04N19/124
Abstract: An image decoding method is disclosed in the present specification. An image decoding method according to the present invention may comprise determining a prediction mode of a current block and performing prediction with respect to the current block on the basis of the determined prediction mode.
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