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111.发明授权公开(公告)号：US11838540B2
公开(公告)日：2023-12-05
申请号：US17415568
申请日：2019-12-20
发明人： Ha Hyun Lee , Jung Won Kang , Sung Chang Lim , Jin Ho Lee , Hui Yong Kim
IPC分类号： H04N19/577 , H04N19/105 , H04N19/159 , H04N19/176
CPC分类号： H04N19/577 , H04N19/105 , H04N19/159 , H04N19/176
摘要： Disclosed herein is a method of decoding an image including determining whether a current block is in a bi-directional optical flow (BIO) mode, calculating gradient information of prediction samples of the current block when the current block is in the BIO mode, and generating a prediction block of the current block using the calculated gradient information, wherein the calculating of the gradient information of the prediction samples of the current block includes calculating the gradient information using at least one neighbor sample adjacent to the prediction samples.
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112.发明授权公开(公告)号：US11825077B2
公开(公告)日：2023-11-21
申请号：US17724818
申请日：2022-04-20
申请人： Electronics and Telecommunications Research Institute , University-Industry Cooperation Group of Kyung Hee University
发明人： 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分类号： H04N19/70 , H04N19/105 , H04N19/117 , H04N19/132 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/182 , H04N19/46 , H04N19/52
CPC分类号： H04N19/105 , H04N19/117 , H04N19/132 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/182 , H04N19/46 , H04N19/52
摘要： 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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113.发明授权公开(公告)号：US11805247B2
公开(公告)日：2023-10-31
申请号：US17401424
申请日：2021-08-13
发明人： Seung Hyun Cho , Jung Won Kang , Sung Chang Lim , Hyun Suk Ko , Dong San Jun , Jin Ho Lee , Ha Hyun Lee , Hui Yong Kim , Jin Soo Choi
IPC分类号： H04N19/11 , H04N19/105 , H04N19/176 , H04N19/96 , H04N19/119
CPC分类号： H04N19/11 , H04N19/105 , H04N19/119 , H04N19/176 , H04N19/96
摘要： An image encoding/decoding method and apparatus for performing intra prediction are provided. An image decoding method of the present invention comprises deriving an intra-prediction mode for a current block, determining whether or not a left boundary or an upper boundary of the current block is a boundary of a predetermined image region, configuring a reference sample by using at least one reconstructed sample included in at least one reconstructed sample line adjacent to the current block based on the determination result, and performing intra-prediction for the current block based on the intra-prediction mode and the reference sample.
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公开(公告)号：US11689720B2
公开(公告)日：2023-06-27
申请号：US17277512
申请日：2019-09-19
发明人： Sung Chang Lim , Jung Won Kang , Ha Hyun Lee , Jin Ho Lee , Hui Yong Kim
IPC分类号： H04N19/119 , H04N19/176 , H04N19/96
CPC分类号： H04N19/119 , H04N19/176 , H04N19/96
摘要： 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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115.发明授权公开(公告)号：US11677940B2
公开(公告)日：2023-06-13
申请号：US16648470
申请日：2018-09-20
发明人： Sung Chang Lim , Jung Won Kang , Hyun Suk Ko , Jin Ho Lee , Ha Hyun Lee , Dong San Jun , Hui Yong Kim
IPC分类号： H04N19/119 , H04N19/159 , H04N19/176 , H04N19/186 , H04N19/169 , H04N19/46 , H04N19/96
CPC分类号： H04N19/119 , H04N19/159 , H04N19/176 , H04N19/186 , H04N19/1883 , H04N19/46 , H04N19/96
摘要： The present invention relates to an image encoding/decoding method. The image decoding method includes splitting a coding tree unit (CTU) into at least one coding unit (CU) according to a block splitting structure and performing CU-based decoding, in which the block partition structure is configured such that at least one of binary tree splitting and ternary tree splitting is performed after quadtree splitting is performed.
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公开(公告)号：US11516496B2
公开(公告)日：2022-11-29
申请号：US16982972
申请日：2019-03-21
发明人： Sung Chang Lim , Jung Won Kang , Ha Hyun Lee , Jin Ho Lee , Hui Yong Kim
IPC分类号： H04N19/96 , H04N19/105 , H04N19/159 , H04N19/176 , H04N19/423 , H04N19/513
摘要： The present invention is about an image encoding/decoding method and apparatus. According to present invention, a method of decoding an image, the method comprising, loading information of a neighboring block of a current block; decoding a current block using the loaded information of the neighboring block; and saving information of the current block that is decoded.
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公开(公告)号：US11490100B2
公开(公告)日：2022-11-01
申请号：US17174843
申请日：2021-02-12
发明人： Jung Won Kang , Ha Hyun Lee , Jin Soo Choi , Jin Woong Kim
IPC分类号： H04N19/187 , H04N19/70 , H04N19/61 , H04N19/30 , H04N19/31 , H04N19/46 , H04N19/169 , H04N19/124 , H04N19/13 , H04N19/52 , H04N19/593 , H04N19/80 , H04N19/91 , H04N19/182 , H04N19/33 , H04N19/503
摘要： The present invention relates to a decoding method for a bit stream that supports a plurality of layers. The decoding method may include receiving information on a set of video parameters that includes information on the plurality of layers, and parsing the set of video parameters to grasp information on the layers in the bit stream.
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118.发明授权公开(公告)号：US11445185B2
公开(公告)日：2022-09-13
申请号：US17277597
申请日：2019-09-18
发明人： Jin Ho Lee , Jung Won Kang , Ha Hyun Lee , Sung Chang Lim , Hui Yong Kim
IPC分类号： H04N19/11 , H04N19/105 , H04N19/117 , H04N19/176 , H04N19/593
摘要： An image encoding/decoding method is disclosed. An image decoding method of the present invention may comprise deriving an intra-prediction mode of a current block by using an intra-prediction mode of a neighbor block adjacent to the current block, configuring a reference sample of the current block, and performing intra-prediction on the current block by using the intra-prediction mode and the reference sample, wherein when the intra-prediction mode of the neighbor block is unavailable, the intra-prediction mode of the neighbor block may be replaced with a planar mode.
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公开(公告)号：US10958919B2
公开(公告)日：2021-03-23
申请号：US16784714
申请日：2020-02-07
发明人： Jung Won Kang , Ha Hyun Lee , Jin Soo Choi , Jin Woong Kim
IPC分类号： H04N19/187 , H04N19/70 , H04N19/61 , H04N19/30 , H04N19/31 , H04N19/46 , H04N19/169 , H04N19/124 , H04N19/13 , H04N19/52 , H04N19/593 , H04N19/80 , H04N19/91 , H04N19/182 , H04N19/33 , H04N19/503
摘要： The present invention relates to an image information decoding method. The decoding method includes receiving a bit stream including a Network Abstraction Layer (NAL) unit that includes information related to encoded image, and parsing a NAL unit header of the NAL unit. The NAL unit header may not include 1 bit flag information that represents whether a picture is a non-reference picture or a reference picture in the entire bit stream during encoding.
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公开(公告)号：US10958918B2
公开(公告)日：2021-03-23
申请号：US16778313
申请日：2020-01-31
发明人： Jung Won Kang , Ha Hyun Lee , Jin Soo Choi , Jin Woong Kim
IPC分类号： H04N19/187 , H04N19/70 , H04N19/61 , H04N19/30 , H04N19/31 , H04N19/46 , H04N19/169 , H04N19/124 , H04N19/13 , H04N19/52 , H04N19/593 , H04N19/80 , H04N19/91 , H04N19/182 , H04N19/33 , H04N19/503
摘要： The present invention relates to a decoding method for a bit stream that supports a plurality of layers. The decoding method may include receiving information on a set of video parameters that includes information on the plurality of layers, and parsing the set of video parameters to grasp information on the layers in the bit stream.
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