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131.发明公开公开(公告)号：US20240357085A1
公开(公告)日：2024-10-24
申请号：US18757232
申请日：2024-06-27
Applicant: Electronics and Telecommunications Research Institute , INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY , INDUSTRY-UNIVERSITY COOPERATION KOREA AEROSPACE UNIVERSITY
Inventor： Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Jin Ho LEE , Hui Yong KIM , Yung Lyul LEE , Myung Jun KIM , Nam Uk KIM , Yang Woo KIM , Ji Yeon JUNG , Jae Gon KIM
IPC: H04N19/105 , H04N19/132 , H04N19/159 , H04N19/176 , H04N19/186
CPC classification number: H04N19/105 , H04N19/132 , H04N19/159 , H04N19/176 , H04N19/186
Abstract: An image encoding/decoding method is provided. An image decoding method of the present invention may comprise restoring an intra-prediction mode of a current chroma block, deriving at least one representative value based on a neighboring sample of the current chroma block and a neighboring sample of a corresponding luma block corresponding to the current chroma block in case the intra-prediction mode is a CCLM (Cross-Component Linear Model) mode, deriving a parameter of CCLM by using the at least one representative value, and generating a prediction block of the current chroma block by using the parameter of CCLM.
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132.发明公开公开(公告)号：US20240340440A1
公开(公告)日：2024-10-10
申请号：US18746655
申请日：2024-06-18
Inventor： Sung Chang LIM , Hui Yong KIM , Se Yoon JEONG , Suk Hee CHO , Jong Ho KIM , Ha Hyun LEE , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM , Chie Teuk AHN
IPC: H04N19/52
CPC classification number: H04N19/52
Abstract: An inter prediction method according to the present invention comprises: a step for deriving reference motion information related to a unit to be decoded in a current picture; and a step for performing motion compensation for the unit to be decoded, using the reference motion information that has been derived. According to the present invention, image encoding/decoding efficiency can be enhanced.
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公开(公告)号：US20240323363A1
公开(公告)日：2024-09-26
申请号：US18734880
申请日：2024-06-05
Applicant: Electronics and Telecommunications Research Institute , RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
Inventor： Jung Won KANG , Ha Hyun LEE , Sung Chang LIM , Jin Ho LEE , Byeung Woo JEON , Jee Yoon PARK
IPC: H04N19/107 , H04N19/132 , H04N19/176 , H04N19/184 , H04N19/186 , H04N19/503 , H04N19/593
CPC classification number: H04N19/107 , H04N19/132 , H04N19/176 , H04N19/184 , H04N19/186 , H04N19/503 , H04N19/593
Abstract: Disclosed herein is an image encoding/decoding method and apparatus. The image decoding method includes deriving an intra prediction value by performing intra prediction with respect to a current block, deriving an inter prediction value by performing inter prediction with respect to the current block, deriving a combined inter intra prediction (CIIP) value by weighting the intra prediction value and the inter prediction value, and generating a reconstructed block of the current block using the CIIP value. The intra prediction is performed in a Planar mode.
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134.发明公开公开(公告)号：US20240314316A1
公开(公告)日：2024-09-19
申请号：US18674728
申请日：2024-05-24
Applicant: Electronics and Telecommunications Research Institute , INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY , 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 , Myung Jun KIM , Nam Uk KIM , Ji Youn JUNG , Yang Woo KIM , Jae Gon KIM
IPC: H04N19/124 , H04N19/119 , H04N19/176
CPC classification number: H04N19/124 , H04N19/119 , H04N19/176
Abstract: There is provided an image encoding/decoding method and apparatus. The image decoding method comprises decoding size information of a quantization group from a bitstream, acquiring a delta quantization parameter of a current block on the basis of the size information of the quantization group, and deriving a quantization parameter for the current block on the basis of the delta quantization parameter.
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公开(公告)号：US20240291969A1
公开(公告)日：2024-08-29
申请号：US18654752
申请日：2024-05-03
Inventor： Ha Hyun LEE , Hui Yong KIM , Sung Chang LIM , Jong Ho KIM , Jin Ho LEE , Se Yoon JEONG , Suk Hee CHO , Jin Soo CHOI , Jin Woong KIM , Chie Teuk AHN
IPC: H04N19/107 , H04N19/105 , H04N19/109 , H04N19/11 , H04N19/13 , H04N19/137 , H04N19/157 , H04N19/159 , H04N19/169 , H04N19/176 , H04N19/196 , H04N19/50 , H04N19/513 , H04N19/52 , H04N19/593 , H04N19/61 , H04N19/70 , H04N19/91
CPC classification number: H04N19/107 , H04N19/105 , H04N19/109 , H04N19/11 , H04N19/13 , H04N19/137 , H04N19/157 , H04N19/159 , H04N19/176 , H04N19/1887 , H04N19/196 , H04N19/50 , H04N19/52 , H04N19/521 , H04N19/593 , H04N19/61 , H04N19/70 , H04N19/91
Abstract: Disclosed herein is an intra prediction method including: deriving neighbor prediction mode information from a left neighbor prediction mode and an upper neighbor prediction mode; deriving an intra prediction mode for a decoding target unit by using the derived neighbor prediction mode information; and performing intra prediction on the decoding target unit based on the intra prediction mode. According to exemplary embodiments of the present invention, image encoding/decoding efficiency can be improved.
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Patent Agency Ranking
公开(公告)号：US20240107025A1
公开(公告)日：2024-03-28
申请号：US18499795
申请日：2023-11-01
Inventor： Ha Hyun LEE , Jung Won KANG , Sung Chang LIM , Jin Ho LEE , Hui Yong KIM
IPC: H04N19/139 , H04N19/159 , H04N19/167 , H04N19/176 , H04N19/593
CPC classification number: H04N19/139 , H04N19/159 , H04N19/167 , H04N19/176 , H04N19/593
Abstract: An image decoding method is disclosed in the present specification. An image decoding method according to the present invention may include: determining a position of a co-located block of a current block within a co-located picture (co-located picture); determining a representative motion vector of the current block by using motion information at the position of the co-located block; and deriving motion information on a sub-block included in the current block by using the representative motion vector.
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137.发明公开公开(公告)号：US20240056572A1
公开(公告)日：2024-02-15
申请号：US18492596
申请日：2023-10-23
Applicant: Electronics and Telecommunications Research Institute , HANBAT NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
Inventor： Ha Hyun LEE , Jung Won KANG , Sung Chang LIM , Jin Ho LEE , Hui Yong KIM , Hae Chul CHOI , Dae Hyeok GWON
IPC: H04N19/119 , H04N19/159 , H04N19/176 , H04N19/169 , H04N19/70 , H04N19/96
CPC classification number: H04N19/119 , H04N19/159 , H04N19/176 , H04N19/1883 , H04N19/70 , H04N19/96
Abstract: An image encoding/decoding method is disclosed. An image decoding method of the present invention may comprise identifying a region by partitioning an image, and determining a prediction mode of the region on the basis of at least one of a size of the region, a partition shape, and a coding parameter of the region. The determined prediction mode of the region may be determined as a prediction mode of all coding blocks included in the region.
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公开(公告)号：US20230379466A1
公开(公告)日：2023-11-23
申请号：US18359384
申请日：2023-07-26
Applicant: Electronics and Telecommunications Research Institute , Industry Academy Cooperation Foundation of Sejong University
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 , Yung Lyul LEE , Nam Uk KIM , Jun Woo CHOI
IPC: H04N19/122 , H04N19/90 , H04N19/132 , H04N19/70 , H04N19/625 , H04N19/103 , H04N19/107 , H04N19/186 , H04N19/176 , H04N19/61
CPC classification number: H04N19/122 , H04N19/90 , H04N19/132 , H04N19/70 , H04N19/625 , H04N19/103 , H04N19/107 , H04N19/186 , H04N19/176 , H04N19/61
Abstract: The present invention relates to a method and apparatus for encoding and decoding a video image based on transform. The method for decoding a video includes: determining a transform mode of a current block; inverse-transforming residual data of the current block according to the transform mode of the current block; and rearranging the inverse-transformed residual data of the current block according to the transform mode of the current block, wherein the transform mode includes at least one of SDST (Shuffling Discrete Sine Transform), SDCT (Shuffling Discrete cosine Transform), DST (Discrete Sine Transform) or DCT (Discrete Cosine Transform).
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139.发明公开公开(公告)号：US20230353774A1
公开(公告)日：2023-11-02
申请号：US18347483
申请日：2023-07-05
Inventor： Sung Chang LIM , Hui Yong KIM , Se Yoon JEONG , Suk Hee CHO , Jong Ho KIM , Ha Hyun LEE , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM , Chie Teuk AHN
IPC: H04N19/52
CPC classification number: H04N19/52
Abstract: An inter prediction method according to the present invention comprises: a step for deriving reference motion information related to a unit to be decoded in a current picture; and a step for performing motion compensation for the unit to be decoded, using the reference motion information that has been derived. According to the present invention, image encoding/decoding efficiency can be enhanced.
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公开(公告)号：US20230353751A1
公开(公告)日：2023-11-02
申请号：US18346488
申请日：2023-07-03
Inventor： Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Dong San JUN , Hyun Suk KO , Jin Ho LEE , Seung Hyun CHO , Hui Yong KIM , Jin Soo CHOI
IPC: H04N19/139 , H04N19/52 , H04N19/51 , H04N19/117 , H04N19/124 , H04N19/91
CPC classification number: H04N19/139 , H04N19/52 , H04N19/51 , H04N19/117 , H04N19/124 , H04N19/91
Abstract: The present invention relates to a method of performing motion compensation by using motion vector prediction. To this end, a method of decoding an image may include: generating multiple motion vector candidate lists according to an inter-prediction direction of a current block; deriving multiple motion vectors for the current block by using the multiple motion vector candidate lists; determining multiple prediction blocks for the current block by using the multiple motion vectors; and obtaining a final prediction block for the current block based on the multiple prediction blocks.
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