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公开(公告)号：US20240179324A1
公开(公告)日：2024-05-30
申请号：US18426793
申请日：2024-01-30
发明人： Je Won Kang , Jung Kyung Lee , Seung Wook Park , Jin Heo
IPC分类号： H04N19/154 , H04N19/172 , H04N19/46
CPC分类号： H04N19/154 , H04N19/172 , H04N19/46
摘要： A method and an apparatus are disclosed for video coding using an improved in-loop filter. The video coding method and the apparatus generate a residual frame from a reconstructed frame using a deep learning model. The video coding method and the apparatus improve performance of an in-loop filter by approximating an original residual frame by applying the generated residual frame to a linear model.
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2.发明公开公开(公告)号：US20240155153A1
公开(公告)日：2024-05-09
申请号：US18412841
申请日：2024-01-15
发明人： Je Won Kang , Hye Sun Jeong , Seung Wook Park , Jin Heo
IPC分类号： H04N19/593 , H04N19/176 , H04N19/184
CPC分类号： H04N19/593 , H04N19/176 , H04N19/184
摘要： A method and an apparatus are disclosed for video coding for refining predicted signals of intra prediction based on deep learning. The video coding method and the apparatus generate a refined intra predicted signal to improve video coding efficiency and video quality. The video coding method and the apparatus adaptively input a prediction block according to intra prediction of a current block, block information related to the current block, and neighboring reconstructed reference samples into a deep learning network.
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公开(公告)号：US11917181B2
公开(公告)日：2024-02-27
申请号：US18093605
申请日：2023-01-05
发明人： Je Won Kang , Sang Hyo Park , Seung Wook Park , Wha Pyeong Lim
IPC分类号： H04N19/44 , H04N19/105 , H04N19/132 , H04N19/159 , H04N19/176 , H04N19/70
CPC分类号： H04N19/44 , H04N19/105 , H04N19/132 , H04N19/159 , H04N19/176 , H04N19/70
摘要： A method and apparatus for intra-prediction coding of video data are provided. The apparatus includes a decoder that is configured to decode, from a bitstream, a syntax element indicating an intra-prediction type of a current block of the video data, and an intra-predictor that is configured to generate a prediction block for the current block by selectively performing matrix based intra-prediction or regular intra-prediction based on the intra-prediction type of the current block indicated by the syntax element.
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公开(公告)号：US11838538B2
公开(公告)日：2023-12-05
申请号：US17868893
申请日：2022-07-20
发明人： Je Won Kang , Seung Wook Park , Wha Pyeong Lim
IPC分类号： H04N19/52 , H04N19/132 , H04N19/176 , H04N19/70
CPC分类号： H04N19/52 , H04N19/132 , H04N19/176 , H04N19/70
摘要： A video decoding apparatus is provided for decoding pictures using inter-prediction. The video decoding apparatus includes a predictor that generates affine prediction samples for respective subblocks in a target block in a current picture to be decoded by performing affine motion prediction on a subblock-by-subblock basis using control point motion vectors which respectively correspond to corners of the target block. The predictor also modifies sample values of the affine prediction samples by executing a first coding tool, the first coding tool compensating for motion according to sample positions in each of the subblocks using the control point motion vectors.
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公开(公告)号：US20220385940A1
公开(公告)日：2022-12-01
申请号：US17767013
申请日：2020-09-24
发明人： Je Won Kang , Seung Wook Park , Wha Pyeong Lim
IPC分类号： H04N19/577 , H04N19/105 , H04N19/176 , H04N19/139
摘要： A video decoding apparatus predicts a target block in a current picture to be decoded. The apparatus comprises a predictor configured to: determine first and second reference pictures and first and second motion vectors for bi-prediction by decoding a bitstream; generate a first reference block from the first reference picture referenced by the first motion vector and generate a second reference block from the second reference picture referenced by the second motion vector; and generate a prediction block of the target block using the first and second reference blocks. The predictor includes a first coding tool configured to generate the prediction block of the target block by performing a bi-directional optical flow process using the first and second reference blocks.
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公开(公告)号：US11516472B2
公开(公告)日：2022-11-29
申请号：US17286798
申请日：2020-06-22
发明人： Je Won Kang , Sang Hyo Park , Seung Wook Park , Wha Pyeong Lim
IPC分类号： H04N19/127 , H04N19/103 , H04N19/13 , H04N19/132 , H04N19/136 , H04N19/184 , H04N19/186 , H04N19/187
摘要： A method and device for controlling coding tools are provided. The video decoding method includes decoding, from a high level of a bitstream, an enable flag indicating whether one or more coding tools are enabled. The coding tools includes a first coding tool that encodes sample values using luma component mapping based on a piecewise linear model. The method includes acquiring a value of an application flag depending on a value of the enable flag, by setting the application flag indicating whether to apply the coding tools to a predetermined value, or by decoding the application flag from a low level of the bitstream, the application flag including a first application flag indicating whether to apply the first coding tool. The coding tools are operated when the value of the application flag is a value indicating that the coding tools are applied.
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公开(公告)号：US20220210435A1
公开(公告)日：2022-06-30
申请号：US17565545
申请日：2021-12-30
发明人： Je Won Kang , Chae Hwa Yoo , Seung Wook Park
IPC分类号： H04N19/147 , G06V10/77 , H04N19/105 , H04N19/196 , H04N19/176
摘要： The present disclosure relates to an apparatus for and a method of coding machine vision data by using prediction, and for improving the efficiency of encoding the data used for machine vision, provides an apparatus for Video Coding for Machines (VCM) which sets reference data according to a correlation between the data, generates, based on the reference data, prediction data for original data having a high correlation with the reference data, and generates residual data between the prediction data and the original data, and provides a coding method performed by the apparatus for VCM.
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公开(公告)号：US20220086434A1
公开(公告)日：2022-03-17
申请号：US17519997
申请日：2021-11-05
发明人： Je Won Kang , Sang Hyo Park , Seung Wook Park , Wha Pyeong Lim
IPC分类号： H04N19/11 , H04N19/105 , H04N19/139 , H04N19/159 , H04N19/167 , H04N19/176 , H04N19/70
摘要： An apparatus for decoding video data includes a decoder configured to decode, from a bitstream, a syntax element indicating an intra-prediction type of a current block of the video data, and an intra-predictor configured to generate a prediction block for the current block by selectively performing matrix based intra-prediction (MIP) or regular intra-prediction based on the intra-prediction type of the current block indicated by the syntax element.
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公开(公告)号：US20220060700A1
公开(公告)日：2022-02-24
申请号：US17519871
申请日：2021-11-05
发明人： Je Won Kang , Sang Hyo Park , Seung Wook Park , Wha Pyeong Lim
IPC分类号： H04N19/11 , H04N19/105 , H04N19/139 , H04N19/159 , H04N19/167 , H04N19/176 , H04N19/70
摘要： An apparatus for decoding video data includes a decoder configured to decode, from a bitstream, a syntax element indicating an intra-prediction type of a current block of the video data, and an intra-predictor configured to generate a prediction block for the current block by selectively performing matrix based intra-prediction (MIP) or regular intra-prediction based on the intra-prediction type of the current block indicated by the syntax element.
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10.发明公开公开(公告)号：US20240364904A1
公开(公告)日：2024-10-31
申请号：US18766140
申请日：2024-07-08
发明人： Je Won Kang , Jung Kyung Lee , Jin Heo , Seung Wook Park
IPC分类号： H04N19/192 , H04N19/105 , H04N19/159 , H04N19/176
CPC分类号： H04N19/192 , H04N19/105 , H04N19/159 , H04N19/176
摘要： A method is disclosed for modifying a decoder-side motion vector list in inter prediction. A video coding method and an apparatus use a template matching method or a bilateral matching (BM) method in a merge mode and an advanced motion vector prediction (AMVP) mode of inter prediction. The video coding method and the apparatus perform at least one of adding, pruning, or reordering candidates with respect to a motion vector list at the decoder side.
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