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公开(公告)号：US20250008103A1
公开(公告)日：2025-01-02
申请号：US18885456
申请日：2024-09-13
Inventor： Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Jin Ho LEE , Hui Yong KIM
IPC: H04N19/119 , H04N19/176 , H04N19/96
Abstract: There is provided a method and apparatus of encoding/decoding an image. The method comprises decoding information on block partitioning of a current block included in a current picture from a bitstream; determining a partitioning method of the current block on the basis of the information; and partitioning the current block by using the determined partitioning method, wherein the partitioning method is determined on the basis of whether or not the current block includes a predetermined boundary.
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292.发明申请公开(公告)号：US20240422319A1
公开(公告)日：2024-12-19
申请号：US18814388
申请日：2024-08-23
Applicant: Electronics and Telecommunications Research Institute , lNDUSTRY-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 , Yung Lyul LEE
IPC: H04N19/13 , H04N19/105 , H04N19/119 , H04N19/159 , H04N19/176
Abstract: Disclosed herein is an image decoding method. The method of decoding an image comprises obtaining prediction information and residual signal information for a current block from a bitstream and reconstructing, based on the obtained prediction information and the residual signal information, the current block, wherein the prediction information is obtained through entropy decoding, and wherein a context model used for the entropy decoding of the prediction information is determined based on a prediction mode of a neighboring block of the current block.
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公开(公告)号：US20240406413A1
公开(公告)日：2024-12-05
申请号：US18805847
申请日：2024-08-15
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 , Hee Ji HAN
IPC: H04N19/159 , H04N19/105 , H04N19/174 , H04N19/176 , H04N19/513 , 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 prediction mode of a current block as IBC (Intra Block Copy) mode, deriving a candidate list for deriving a block vector of the current block and deriving a block vector of the current block by using the candidate list, wherein the candidate list is derived based on a size of the current block.
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294.发明申请公开(公告)号：US20240406378A1
公开(公告)日：2024-12-05
申请号：US18794355
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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295.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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Patent Agency Ranking
296.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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297.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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299.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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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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