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公开(公告)号：US20240244214A1
公开(公告)日：2024-07-18
申请号：US18423311
申请日：2024-01-26
发明人： Anand Meher Kotra , Semih Esenlik , Zhijie Zhao , Han Gao
IPC分类号： H04N19/132 , H04N19/117 , H04N19/176 , H04N19/82
CPC分类号： H04N19/132 , H04N19/117 , H04N19/176 , H04N19/82
摘要： A deblocking filter of an image processing device is provided. The deblocking filter is used in an image coding process, for deblocking a block edge between a first coding block and a second coding block of an image. The first block has SA samples perpendicular to the block edge by N samples parallel to the block edge, and the second block has SB samples perpendicular to the block edge by N samples parallel to the block edge. No more than IA samples of the first coding block are used as first filter input values, and no more than IB samples of the second coding block are used as second filter input values. No more than MA samples of the first coding block are modified as first filter output values, and no more than MB samples of the second coding block are modified as second filter output values.
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22.发明公开公开(公告)号：US20240244202A1
公开(公告)日：2024-07-18
申请号：US18414481
申请日：2024-01-17
发明人： Han Gao , Semih Esenlik , Jianle Chen , Anand Meher Kotra , Biao Wang , Zhijie Zhao
IPC分类号： H04N19/119 , H04N19/159 , H04N19/176 , H04N19/186 , H04N19/70 , H04N19/96
CPC分类号： H04N19/119 , H04N19/159 , H04N19/176 , H04N19/186 , H04N19/70 , H04N19/96
摘要： The present disclosure provides an encoding apparatus and a decoding apparatus, as well as an encoding method and a decoding method. In particular, the present disclosure relates to block partitioning and signaling the partitioning parameters in a bitstream. An override flag in a slice header indicates whether or not a block is to be partitioned according to a first partition constraint information. The override flag is included in the bitstream and the block is partitioned accordingly.
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公开(公告)号：US12010291B2
公开(公告)日：2024-06-11
申请号：US17557930
申请日：2021-12-21
发明人： Semih Esenlik , Max Blaeser , Zhijie Zhao , Han Gao , Biao Wang , Anand Meher Kotra , Elena Alexandrovna Alshina
IPC分类号： H04N19/103 , H04N19/119 , H04N19/132 , H04N19/176 , H04N19/46 , H04N19/70
CPC分类号： H04N19/103 , H04N19/119 , H04N19/132 , H04N19/176 , H04N19/46 , H04N19/70
摘要： A method for coding implemented by a decoding device or an encoding device includes: obtaining a first prediction mode for a first sub-block, obtaining a second prediction mode for a second sub-block; obtaining a first prediction value for a sample in the current block according to the first prediction mode, obtaining a second prediction value for the sample in the current block according to the second prediction mode; obtaining a value of an indicator, the value of the indicator indicating a blending operation which is performed for the sample in the current block; and obtaining a combined prediction value for the sample in the current block, according to the value of the indictor, the first prediction value, and the second prediction value. The blending operation adaptively performs around a separation line dividing the current block into at least the first sub-block and the second sub-block.
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24.发明授权公开(公告)号：US11930171B2
公开(公告)日：2024-03-12
申请号：US17363544
申请日：2021-06-30
发明人： Han Gao , Semih Esenlik , Jianle Chen , Anand Meher Kotra , Biao Wang , Zhijie Zhao
IPC分类号： H04N19/96 , H04N19/119 , H04N19/159 , H04N19/176 , H04N19/186 , H04N19/70
CPC分类号： H04N19/119 , H04N19/159 , H04N19/176 , H04N19/186 , H04N19/70 , H04N19/96
摘要： The present disclosure provides an encoding apparatus and a decoding apparatus, as well as an encoding method and a decoding method. In particular, the present disclosure relates to block partitioning and signaling the partitioning parameters in a bitstream. An override flag in a slice header indicates whether or not a block is to be partitioned according to a first partition constraint information. The override flag is included in the bitstream and the block is partitioned accordingly.
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公开(公告)号：US20230370587A1
公开(公告)日：2023-11-16
申请号：US18322404
申请日：2023-05-23
发明人： Anand Meher Kotra , Jianle Chen , Semih Esenlik , Zhijie Zhao , Han Gao , Biao Wang , Ivan Krasnov
IPC分类号： H04N19/11 , H04N19/105 , H04N19/132 , H04N19/159 , H04N19/176
CPC分类号： H04N19/11 , H04N19/105 , H04N19/132 , H04N19/159 , H04N19/176
摘要： A coding apparatus configured to select an intra prediction mode for a current block, encode the selected intra prediction mode using truncated binary coding every time the selected intra prediction mode is a remaining mode, and encode the selected intra prediction mode using N bits when the selected intra prediction mode is included in a first portion from remaining modes and using N+1 bits when the selected intra prediction mode is included in a second portion of the remaining modes.
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公开(公告)号：US11805270B2
公开(公告)日：2023-10-31
申请号：US18158313
申请日：2023-01-23
发明人： Semih Esenlik , Anand Meher Kotra , Zhijie Zhao , Han Gao
IPC分类号： H04N19/513 , H04N19/57
CPC分类号： H04N19/513 , H04N19/57
摘要： The present disclosure relates to motion vector refinement. As a first step, an initial motion vector and a template for the block are obtained. Then, the refinement of the initial motion vector is determined by template matching with said template in a search space. The search space is located on a position given by the initial motion vector and includes one or more fractional sample positions, wherein each of the fractional sample positions belonging to the search space is obtained by interpolation filtering with a filter of a predefined tap-size assessing integer samples only within a window, said window being formed by integer samples accessible for the template matching in said search space.
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公开(公告)号：US20230239489A1
公开(公告)日：2023-07-27
申请号：US18158313
申请日：2023-01-23
发明人： Semih Esenlik , Anand Meher Kotra , Zhijie Zhao , Han Gao
IPC分类号： H04N19/513 , H04N19/57
CPC分类号： H04N19/513 , H04N19/57
摘要： The present disclosure relates to motion vector refinement. As a first step, an initial motion vector and a template for the block are obtained. Then, the refinement of the initial motion vector is determined by template matching with said template in a search space. The search space is located on a position given by the initial motion vector and includes one or more fractional sample positions, wherein each of the fractional sample positions belonging to the search space is obtained by interpolation filtering with a filter of a predefined tap-size assessing integer samples only within a window, said window being formed by integer samples accessible for the template matching in said search space.
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公开(公告)号：US11647182B2
公开(公告)日：2023-05-09
申请号：US17199929
申请日：2021-03-12
发明人： Biao Wang , Semih Esenlik , Anand Meher Kotra , Han Gao , Jianle Chen , Zhijie Zhao
IPC分类号： H04N19/11 , H04N19/176 , H04N19/436 , H04N19/593 , H04N19/70
CPC分类号： H04N19/11 , H04N19/176 , H04N19/436 , H04N19/593 , H04N19/70
摘要： A decoding method and a decoder for decoding a current block of a video frame is provided, wherein the decoding method comprises determining a list of Most Probable Modes (MPMs) for the current block. When at least one condition is satisfied, the list of MPMs includes a DC mode, a Vertical mode, a Horizontal mode, an intra prediction mode corresponding to a value of the Vertical mode with a first offset, and an intra prediction mode corresponding to the value of the Vertical mode with a second offset. The decoding method further includes obtaining a MPM flag and a MPM index for the current block from a bitstream of the video, and obtaining an intra prediction mode for the current block for reconstructing the current block.
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公开(公告)号：US11641466B2
公开(公告)日：2023-05-02
申请号：US17190231
申请日：2021-03-02
发明人： Han Gao , Semih Esenlik , Jianle Chen , Zhijie Zhao , Anand Meher Kotra , Biao Wang
IPC分类号： H04N19/119 , H04N19/176 , H04N19/70 , H04N19/96
摘要： The present disclosure relates to methods and devices to be employed for encoding and decoding of image or video signal. They include determination of whether or not the size of a current block is larger than a minimum allowed quadtree leaf node size. If the size of the current block is not larger than the minimum allowed quadtree leaf node size, multi-type tree splitting is applied to the current block. The minimum allowed quadtree leaf node size is not larger than a maximum allowed binary tree root node size or the minimum allowed quadtree leaf node size is not larger than a maximum allowed ternary tree root node size.
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公开(公告)号：US11563976B2
公开(公告)日：2023-01-24
申请号：US17170065
申请日：2021-02-08
发明人： Biao Wang , Jianle Chen , Semih Esenlik , Anand Meher Kotra , Han Gao , Zhijie Zhao
IPC分类号： H04N19/593 , H04N19/105 , H04N19/159 , H04N19/176
摘要： The disclosure relates to a method of decoding implemented by a decoding device, comprising: obtaining a value of a reference line index for a current block; constructing a most probable mode, MPM, list for the current block; obtaining a value of intra-prediction mode index for the current block; when the value of the reference line index is not equal to 0, obtaining an intra prediction mode of the current block according to the MPM list for the current block and the value of the intra-prediction mode index for the current block, wherein the value of the intra-prediction mode index indicates a position that corresponds to the intra prediction mode of the current block among angular intra-prediction modes in the MPM list. The disclosure also relates to a coding apparatus and a non-transitory machine-readable medium.
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