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11.发明授权公开(公告)号：US12262001B2
公开(公告)日：2025-03-25
申请号：US18479313
申请日：2023-10-02
Applicant: Electronics and Telecommunications Research Institute , University-Industry Cooperation Group of Kyung Hee University
Inventor： Jung Won Kang , Hyun Suk Ko , Sung Chang Lim , Jin Ho Lee , Ha Hyun Lee , Dong San Jun , Seung Hyun Cho , Hui Yong Kim , Jin Soo Choi , Gwang Hoon Park , Tae Hyun Kim , Dae Young Lee
IPC: H04N19/139 , H04N19/105 , H04N19/117 , H04N19/132 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/182 , H04N19/46 , H04N19/52
Abstract: An image encoding/decoding method and apparatus are provided. An image encoding method performed by an image encoding apparatus may comprise determining an intra-prediction mode of a current block, configuring a reference sample of intra prediction by using at least one of a neighbor pixel of the current block in a current picture and a pixel of a reference picture, and performing intra prediction for the current block based on the intra-prediction mode and the reference sample.
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12.发明授权公开(公告)号：US12034919B2
公开(公告)日：2024-07-09
申请号：US17988972
申请日：2022-11-17
Applicant: Electronics and Telecommunications Research Institute , Industry-University Cooperation Foundation Korea Aerospace University , Hanbat National University Industry-Academic Cooperation Foundation
Inventor： Jin Ho Lee , Sung Chang Lim , Jung Won Kang , Hyun Suk Ko , Ha Hyun Lee , Dong San Jun , Seung Hyun Cho , Hui Yong Kim , Jae Gon Kim , Do Hyeon Park , Jin Soo Choi , Hae Chul Choi
IPC: H04N19/11 , G06F17/18 , H04N19/105 , H04N19/117 , H04N19/119 , H04N19/13 , H04N19/132 , H04N19/159 , H04N19/174 , H04N19/176 , H04N19/513 , H04N19/80 , H04N19/91
CPC classification number: H04N19/11 , G06F17/18 , H04N19/105 , H04N19/117 , H04N19/119 , H04N19/13 , H04N19/132 , H04N19/159 , H04N19/174 , H04N19/176 , H04N19/513 , H04N19/80 , H04N19/91
Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method performed by an image decoding apparatus according to the present invention may comprise deriving an intra-prediction mode of a current block, and performing intra-prediction for the current block based on the intra-prediction mode. The deriving of the intra-prediction mode may comprise decoding a predetermined mode sameness indicator.
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公开(公告)号：US12003753B2
公开(公告)日：2024-06-04
申请号：US16830236
申请日：2020-03-25
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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14.发明授权公开(公告)号：US11831910B2
公开(公告)日：2023-11-28
申请号：US16640129
申请日：2018-08-20
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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公开(公告)号：US11743470B2
公开(公告)日：2023-08-29
申请号：US17511826
申请日：2021-10-27
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 , H04N19/117 , H04N19/51 , H04N19/105 , H04N19/50 , H04N19/52 , H04N19/124 , H04N19/91
CPC classification number: H04N19/139 , H04N19/117 , H04N19/124 , H04N19/51 , H04N19/52 , 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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Patent Agency Ranking
公开(公告)号：US11683475B2
公开(公告)日：2023-06-20
申请号：US17315637
申请日：2021-05-10
Inventor： Dong San Jun , Jung Won Kang , Sung Chang Lim , Hyun Suk Ko , Jin Ho Lee , Hui Yong Kim , Jin Soo Choi
IPC: H04N19/105 , H04N19/119 , H04N19/176 , H04N19/147 , H04N19/573
CPC classification number: H04N19/105 , H04N19/119 , H04N19/147 , H04N19/176 , H04N19/573
Abstract: The present invention provides a method and apparatus for encoding/decoding an image to enhance inter prediction. According to the present invention, the method includes: determining a first reference picture and a second reference picture of a current block; determining both a first reference block in the first reference picture and a second reference block in the second reference picture; partitioning the current block into a plurality of sub blocks; and obtaining a prediction block of each of the sub blocks on the basis of reference candidate block index information of each of the sub blocks.
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公开(公告)号：US11616976B2
公开(公告)日：2023-03-28
申请号：US16620545
申请日：2018-06-05
Inventor： Sung Chang Lim , Jung Won Kang , Hyun Suk Ko , Dong San Jun , Jin Ho Lee , Ha Hyun Lee , Hui Yong Kim
IPC: H04N19/523 , H04N19/176 , H04N19/124 , H04N19/13
Abstract: 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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公开(公告)号：US11425370B2
公开(公告)日：2022-08-23
申请号：US17221195
申请日：2021-04-02
Applicant: Electronics and Telecommunications Research Institute , University-Industry Cooperation Group of Kyung Hee University
Inventor： Jung Won Kang , Hyun Suk Ko , Sung Chang Lim , Jin Ho Lee , Dong San Jun , Hui Yong Kim , Gwang Hoon Park , Jin Soo Choi , Tae Hyun Kim , Dae Young Lee , Young Su Heo
IPC: H04N19/105 , G06T5/00 , G06T5/50 , G06T7/246 , H04N19/139 , H04N19/159 , H04N19/176 , H04N19/513 , G06T3/00 , H04N19/137 , H04N19/51 , H04N19/172 , H04N19/174
Abstract: The present invention relates to a method and apparatus for video encoding/decoding by using a geometric modified picture. The encoding method according to the present invention includes: generating a geometric modified picture by geometrically modifying a reference picture; and generating a first prediction block of a current block by performing inter prediction referencing the geometric modified picture.
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19.发明授权公开(公告)号：US11375185B2
公开(公告)日：2022-06-28
申请号：US16755962
申请日：2018-10-18
Inventor： Jin Ho Lee , Jung Won Kang , Hyun Suk Ko , Sung Chang Lim , Ha Hyun Lee , Dong San Jun , Hui Yong Kim
IPC: H04N19/11 , H04N19/124 , H04N19/132 , H04N19/176
Abstract: An image encoding/decoding method and apparatus for performing representative sample-based intra prediction are provided. An image decoding method may comprise deriving an intra prediction mode of a current block, configuring a reference sample of the current block, and performing intra prediction for the current block based on the intra prediction mode and the reference sample, wherein the intra prediction is representative sample-based prediction.
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20.发明授权公开(公告)号：US11368681B2
公开(公告)日：2022-06-21
申请号：US16302462
申请日：2017-07-17
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
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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