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291.发明申请公开(公告)号：US20240397038A1
公开(公告)日：2024-11-28
申请号：US18794315
申请日：2024-08-05
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 , H04N19/176 , H04N19/423 , H04N19/46 , H04N19/51
Abstract: An image decoding method is disclosed in the present specification. An image decoding method according to the present invention may comprise deriving a candidate list for inter-prediction of a current block, deriving motion information of the current block by using the candidate list, deriving a cumulative coding information candidate by using the motion information of the current block, inserting the derived cumulative coding information candidate into a cumulative coding information candidate list and updating the candidate list by using the cumulative coding information candidate list, wherein the updated candidate list is used for inter-prediction of a block to be decoded after the current block.
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292.发明申请公开(公告)号：US20240380893A1
公开(公告)日：2024-11-14
申请号：US18783326
申请日：2024-07-24
Inventor： Ha Hyun LEE , Jung Won KANG , Sung Chang LIM , Jin Ho LEE , Hui Yong KIM
IPC: H04N19/137 , H04N19/105 , H04N19/157 , H04N19/176
Abstract: Disclosed herein is an image encoding/decoding method and apparatus. The image decoding method includes obtaining symmetric motion vector difference mode availability information from a bitstream, obtaining first prediction direction's zero motion vector difference information from the bitstream, obtaining symmetric motion vector difference mode information of a current block from the bitstream on the basis of the symmetric motion vector difference mode availability information and the first prediction direction's zero motion vector difference information, obtaining first prediction direction's reference picture index information, second prediction direction's reference picture index information and a first prediction direction's motion vector difference value on the basis of the symmetric motion vector difference mode information, and generating a prediction block of the current block by using at least one of the first prediction direction's reference picture index information, the second prediction direction's reference picture index information and the first prediction direction's motion vector difference value.
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293.发明公开公开(公告)号：US20240333959A1
公开(公告)日：2024-10-03
申请号：US18676310
申请日：2024-05-28
Inventor： Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Jin Ho LEE , Hui Yong KIM
IPC: H04N19/513 , H04N19/105 , H04N19/109 , H04N19/139 , H04N19/172 , H04N19/176 , H04N19/184 , H04N19/31 , H04N19/43 , H04N19/85
CPC classification number: H04N19/513 , H04N19/105 , H04N19/109 , H04N19/139 , H04N19/172 , H04N19/176 , H04N19/184 , H04N19/31 , H04N19/43 , H04N19/85
Abstract: The present specification discloses a method of decoding an image. The method includes obtaining a motion vector of a collocated block included in a reference picture of a current block in a temporal motion buffer; changing a format of the obtained motion vector; and deriving the motion vector, in which the format is changed, into a temporal motion vector of the current block.
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公开(公告)号：US20240291989A1
公开(公告)日：2024-08-29
申请号：US18653636
申请日：2024-05-02
Applicant: Electronics and Telecommunications Research Institute , UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
Inventor： Hui Yong KIM , Sung Chang LIM , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM , Gwang Hoon PARK , Kyung Yong KIM
IPC: H04N19/129 , H04N19/119 , H04N19/122 , H04N19/124 , H04N19/136 , H04N19/157 , H04N19/159 , H04N19/176 , H04N19/44 , H04N19/593 , H04N19/61 , H04N19/625 , H04N19/70
CPC classification number: H04N19/129 , H04N19/119 , H04N19/122 , H04N19/124 , H04N19/136 , H04N19/157 , H04N19/159 , H04N19/176 , H04N19/44 , H04N19/593 , H04N19/61 , H04N19/625 , H04N19/70
Abstract: A method and a device for encoding/decoding images are disclosed. The method for encoding images comprises the steps of: deriving a scan type of a residual signal for a current block according to whether or not the current block is a transform skip block; and applying the scan type to the residual signal for the current block, wherein the transform skip block is a block to which transform for the current block is not applied and is specified on the basis of information indicating whether or not transform for the current block is to be applied.
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295.发明公开公开(公告)号：US20240259593A1
公开(公告)日：2024-08-01
申请号：US18626271
申请日：2024-04-03
Inventor： Jung Won KANG , Ha Hyun LEE , Sung Chang LIM , Jin Ho LEE , Hui Yong KIM
IPC: H04N19/593 , H04N19/105 , H04N19/119 , H04N19/12 , H04N19/132 , H04N19/159 , H04N19/169 , H04N19/176 , H04N19/186 , H04N19/423 , H04N19/503
CPC classification number: H04N19/593 , H04N19/105 , H04N19/119 , H04N19/12 , H04N19/132 , H04N19/159 , H04N19/176 , H04N19/186 , H04N19/1883 , H04N19/423 , H04N19/503
Abstract: An image encoding/decoding method and apparatus are disclosed. The image decoding method includes acquiring prediction mode information of a current block from a bitstream, deriving a prediction mode of the current block using the prediction mode information of the current block, acquiring information indicating whether a residual signal of a transform block for the current block is present based on at least one of information on partitioning of the current block or the prediction mode of the current block, and reconstructing the current block based on the information indicating whether the residual signal of the transform block is present.
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Patent Agency Ranking
公开(公告)号：US20240259584A1
公开(公告)日：2024-08-01
申请号：US18630834
申请日：2024-04-09
Inventor： Sung Chang LIM , Hui Yong KIM , Se Yoon JEONG , Suk Hee CHO , Dong San JUN , Jong Ho KIM , Ha Hyun LEE , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/513 , H04N19/426 , H04N19/44 , H04N19/61
CPC classification number: H04N19/513 , H04N19/426 , H04N19/44 , H04N19/61
Abstract: The present invention relates to image processing, and more particularly, to a video coding/decoding method using a clipped motion vector and an apparatus thereof. An embodiment of the present invention relates to a method of decoding an image. The method includes clipping a motion vector of a reference picture in a predetermined dynamic range to generate a clipped motion vector, storing the clipped motion vector in a buffer, deriving a motion vector of a coding treeblock using the motion vector stored in the buffer, and performing inter prediction decoding process using the motion vector of the coding treeblock. According to the exemplary embodiment of the present invention, a size of a memory required for storing motion vectors may be reduced.
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297.发明公开公开(公告)号：US20240205457A1
公开(公告)日：2024-06-20
申请号：US18435936
申请日：2024-02-07
Inventor： Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Jin Ho LEE , Hui Yong KIM
IPC: H04N19/61 , H04N19/11 , H04N19/176 , H04N19/593 , H04N19/91
CPC classification number: H04N19/61 , H04N19/11 , H04N19/176 , H04N19/593 , H04N19/91
Abstract: Disclosed herein is a video decoding method including: obtaining a transform skip mode flag indicating whether or not a transform skip mode is applied to a current block; based on the transform skip mode flag, when a transform skip mode is applied to the current block, determining that secondary transform/inverse transform is not applied to the current block; and, according to the transform skip mode flag, when a transform skip mode is not applied to the current block, obtaining a transform matrix index for secondary transform/inverse transform of the current block and, according to the transform matrix index, determining whether or not secondary transform/inverse transform is applied to the current block.
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公开(公告)号：US20240187644A1
公开(公告)日：2024-06-06
申请号：US18545040
申请日：2023-12-19
Inventor： Sung Chang LIM , Jung Won KANG , Hyun Suk KO , Ha Hyun LEE , Dong San JUN , Jin Ho LEE , Seung Hyun CHO , Hui Yong KIM , Jin Soo CHOI
IPC: H04N19/583 , H04N19/105 , H04N19/132 , H04N19/176 , H04N19/196 , H04N19/463 , H04N19/51 , H04N19/513 , H04N19/56 , H04N19/577 , H04N19/96
CPC classification number: H04N19/583 , H04N19/105 , H04N19/176 , H04N19/51 , H04N19/96 , H04N19/132 , H04N19/197 , H04N19/463 , H04N19/513 , H04N19/56 , H04N19/577
Abstract: The present invention relates to a method for encoding/decoding a video. To this end, the method for decoding a video may include: generating a merge candidate list of a current block including at least one merge candidate corresponding to each of a plurality of reference picture lists; determining at least one piece of motion information by using the merge candidate list; and generating a prediction block of the current block by using the determined at least one piece of motion information.
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公开(公告)号：US20240155152A1
公开(公告)日：2024-05-09
申请号：US18413605
申请日：2024-01-16
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , University-Industry Cooperation Group of Kyung Hee University
Inventor： Hui Yong KIM , Gwang Hoon PARK , Kyung Yong KIM , Sang Min KIM , Sung Chang LIM , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/577 , H04N19/109 , H04N19/176 , H04N19/503 , H04N19/513 , H04N19/52 , H04N19/593
CPC classification number: H04N19/577 , H04N19/109 , H04N19/176 , H04N19/503 , H04N19/513 , H04N19/52 , H04N19/593 , H04N19/119
Abstract: According to the present invention, an image encoding apparatus comprises: a motion prediction unit which derives motion information on a current block in the form of the motion information including L0 motion information and L1 motion information; a motion compensation unit which performs a motion compensation for the current block on the basis of at least one of the L0 motion information and L1 motion information so as to generate a prediction block corresponding to the current block; and a restoration block generating unit which generates a restoration block corresponding to the current block based on the prediction block. According to the present invention, image encoding efficiency can be improved.
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300.发明公开公开(公告)号：US20240155110A1
公开(公告)日：2024-05-09
申请号：US18411515
申请日：2024-01-12
Inventor： Jung Won KANG , Sung Chang LIM , Hyun Suk KO , Ha Hyun LEE , Jin Ho LEE , Dong San JUN , Seung Hyun CHO , Hui Yong KIM , Jin Soo CHOI
IPC: H04N19/105 , H04N19/119 , H04N19/159 , H04N19/176 , H04N19/186 , H04N19/70 , H04N19/96
CPC classification number: H04N19/105 , H04N19/119 , H04N19/159 , H04N19/176 , H04N19/186 , H04N19/70 , H04N19/96
Abstract: The present invention relates to an image encoding method and an image decoding method. The image decoding method includes partitioning a picture into a plurality of coding units, constructing a coding unit group including at least one coding unit of the plurality of coding units, obtaining coding information in units of one coding unit group, and decoding at least one coding unit of the plurality of coding units included in the coding unit group by using the obtained coding information.
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