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公开(公告)号：US11695927B2
公开(公告)日：2023-07-04
申请号：US17518254
申请日：2021-11-03
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：US20220060698A1
公开(公告)日：2022-02-24
申请号：US17518254
申请日：2021-11-03
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
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：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：US11196991B2
公开(公告)日：2021-12-07
申请号：US16899313
申请日：2020-06-11
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
摘要： A method of coding implemented by a coding apparatus. The method includes selecting an intra prediction mode for a current block, and encoding the selected intra prediction mode using truncated binary coding when the selected intra prediction mode is a remaining mode.
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公开(公告)号：US11451824B2
公开(公告)日：2022-09-20
申请号：US17135624
申请日：2020-12-28
发明人： Semih Esenlik , Zhijie Zhao , Ivan Krasnov , Jianle Chen
IPC分类号： H04N19/563 , H04N19/103 , H04N19/176 , H04N19/57 , H04N19/80 , H04N19/172 , H04N19/513 , H04N19/55 , H04N19/56 , H04N19/577
摘要： An apparatus and method determining a motion vector for a block, which relates to motion vector determination employing template matching or bilateral matching, are provided. At first, candidate motion vectors are obtained and are mapped to respective representatives (representative motion vectors). In particular, if the obtained candidate motion vectors point to fractional positions and thus, interpolation from the integer sample positions is required, the initial motion vector is rounded to a closest integer sample position. The rounded position is then used to define the search space for the template or bilateral matching to determine the best matching motion vector for the block (in other words, a refinement of an initial motion vector around which the candidate space is spanned). Finally, the mapping operation can be reverted in order to obtain a result in the original search space.
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公开(公告)号：US11363292B2
公开(公告)日：2022-06-14
申请号：US16999031
申请日：2020-08-20
发明人： Semih Esenlik , Ivan Krasnov , Zhijie Zhao , Jianle Chen
IPC分类号： H04N11/02 , H04N19/563 , H04N19/103 , H04N19/176 , H04N19/57 , H04N19/80 , H04N19/172 , H04N19/513 , H04N19/55 , H04N19/56 , H04N19/577
摘要： The present disclosure relates to motion vector determination using template or bilateral matching and predictor generation based on the motion vector. The template or bilateral matching and/or the predictor generation use interpolation filtering. The interpolation filtering operation accesses integer sample positions within a window, and further uses padded sample values for integer sample positions outside the window, which are based on at least one sample within said window, and uses the accessed integer sample position values as well as the padded sample values to perform the template or bilateral matching and/or predictor generation.
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公开(公告)号：US11368696B2
公开(公告)日：2022-06-21
申请号：US17142957
申请日：2021-01-06
发明人： Semih Esenlik , Ivan Krasnov
IPC分类号： H04N11/02 , H04N19/132 , H04N19/117 , H04N19/176 , H04N19/46 , H04N19/82
摘要： The present disclosure relates to adaptive filtering, e.g. adaptive loop filtering, which may be used during encoding and decoding of video pictures. In particular, the present disclosure provides for determining a zero coefficients map, in which each bit indicates whether or not a respective filter coefficient of a supporting region is to be included into the bitstream for an adaptive filter. An indication of the zero coefficients map is included into the bitstream before at least one filter coefficient of the adaptive filter indicated by the zero coefficients map as to be included into the bitstream. The provision of a zero coefficients map enables an efficient signaling and allows for flexible filter shapes that are particularly suitable for the content at hand.
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