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公开(公告)号：US20240205447A1
公开(公告)日：2024-06-20
申请号：US18590150
申请日：2024-02-28
发明人： Jie CHEN , Yan YE , Ru-Ling LIAO , Jiancong LUO
IPC分类号： H04N19/513 , H04N19/176 , H04N19/186 , H04N19/46
CPC分类号： H04N19/513 , H04N19/176 , H04N19/186 , H04N19/46
摘要： A method for performing motion compensation includes: receiving a first wrap-around motion compensation flag associated with one or more pictures, and a second wrap-around motion compensation flag associated with a sequence of pictures; and determining whether the first wrap-around motion compensation flag is equal to a first value or a second value based on the second wrap-around motion compensation flag or a luma coding tree block size: when the second wrap-around motion compensation flag is equal to the second value, determining the first wrap-around motion compensation flag equal to the second value, or when the luma coding tree block size in unit of minimum coding block plus 1 is greater than a picture width in unit of minimum coding block minus 1, determining the first wrap-around motion compensation flag is equal to the second value.
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公开(公告)号：US20230421795A1
公开(公告)日：2023-12-28
申请号：US18464681
申请日：2023-09-11
发明人： Jie CHEN , Ru-Ling LIAO , Yan YE , Jiancong LUO
IPC分类号： H04N19/46 , H04N19/107 , H04N19/70 , H04N19/172 , H04N19/82 , H04N19/117 , H04N19/119
CPC分类号： H04N19/46 , H04N19/107 , H04N19/70 , H04N19/172 , H04N19/82 , H04N19/117 , H04N19/119
摘要： Methods and apparatuses video processing include: in response to receiving a video sequence, encoding first flag data in a parameter set associated with the video sequence, wherein the first flag data represents whether gradual decoding refresh (GDR) is enabled or disabled for the video sequence; when the first flag data represents that the GDR is disabled for the video sequence, encoding a picture header associated with a picture in the video sequence to indicate that the picture is a non-GDR picture; and encoding the non-GDR picture.
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公开(公告)号：US20230353745A1
公开(公告)日：2023-11-02
申请号：US18332244
申请日：2023-06-09
发明人： Yan YE , Jie CHEN , Ru-Ling LIAO
IPC分类号： H04N19/132 , H04N19/176 , H04N19/186 , H04N19/14
CPC分类号： H04N19/132 , H04N19/14 , H04N19/176 , H04N19/186
摘要： The present disclosure provides systems and methods for processing video content. The method can include: receiving data representing a first block and a second block in a picture, the data comprising a plurality of chroma samples associated with the first block and a plurality of luma samples associated with the second block; determining an average value of the plurality of luma samples associated with the second block; determining a chroma scaling factor for the first block based on the average value; and processing the plurality of chroma samples associated with the first block using the chroma scaling factor.
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公开(公告)号：US20230300352A1
公开(公告)日：2023-09-21
申请号：US18324684
申请日：2023-05-26
发明人： Xinwei LI , Jie CHEN , Ru-Ling LIAO , Yan YE
IPC分类号： H04N19/196 , H04N19/44 , H04N19/184 , H04N19/159
CPC分类号： H04N19/196 , H04N19/44 , H04N19/184 , H04N19/159
摘要： A video data processing method includes receiving a bitstream; decoding an index associated with a coding unit based on the bitstream, the index indicating a selection mode among at least four selection modes; determining whether a plurality of top neighboring samples and a plurality of left neighboring samples are available; determining four samples based on the index; determining two parameters based on the four samples; determining predicted samples of the coding unit based on the two parameters; and decoding the coding unit based on the predicted samples; wherein determining the four samples based on the index further comprises: determining the four samples based on an availability of the plurality of the top neighboring samples and the plurality of the left neighboring samples.
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公开(公告)号：US20220329866A1
公开(公告)日：2022-10-13
申请号：US17804437
申请日：2022-05-27
发明人： Jie CHEN , Jiancong LUO , Yan YE , Ru-Ling LIAO
IPC分类号： H04N19/70 , H04N19/46 , H04N19/169
摘要： The present disclosure provides a computer-implemented method for encoding video. The method includes: determining whether a coded video sequence (CVS) contains equal number of profile, tier and level (PTL) syntax structures and output layer sets (OLSs); and in response to the CVS containing equal number of PTL syntax structures and OLSs, coding the bitstream without signaling a first PTL syntax element specifying an index, to a list of PTL syntax structures in the VPS, of a PTL syntax structure that applies to a corresponding OLS in the VPS.
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公开(公告)号：US20220329801A1
公开(公告)日：2022-10-13
申请号：US17805793
申请日：2022-06-07
发明人： Mohammed Golam SARWER , Ru-Ling LIAO , Jiancong LUO , Yan YE
IPC分类号： H04N19/122 , H04N19/61 , H04N19/186 , H04N19/50 , H04N19/176 , H04N19/157 , H04N19/70 , H04N19/132
摘要： A method and apparatus for video processing include: determining to skip a transform process for a prediction residual based on a maximum transform size of a prediction block; and signaling the maximum transform size in a sequence parameter set (SPS).
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公开(公告)号：US20220329797A1
公开(公告)日：2022-10-13
申请号：US17807976
申请日：2022-06-21
发明人： Ru-Ling LIAO , Yan YE , Jie CHEN
IPC分类号： H04N19/119 , H04N19/124 , H04N19/52 , H04N19/176
摘要： The present disclosure provides method and apparatus for motion field storage in video coding. An exemplary method includes: determining whether a first uni-prediction motion vector for a first partition of a block and a second uni-prediction motion vector for a second partition of the block are from a same reference picture list; and in response to the first uni-prediction motion vector and the second uni-prediction motion vector being determined to be from the same reference picture list, storing, in a motion field of the block, one of the first uni-prediction motion vector and the second uni-prediction motion vector for a subblock located in a bi-predicted area of the block.
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公开(公告)号：US20220182617A1
公开(公告)日：2022-06-09
申请号：US17456621
申请日：2021-11-26
发明人： Jie CHEN , Ru-Ling LIAO , Xinwei LI , Yan YE
IPC分类号： H04N19/117 , H04N19/82 , H04N19/182 , H04N19/17
摘要： The present disclosure provides a video data processing method. The method includes: receiving a bitstream; decoding a first index from the bitstream; determining a maximum number of an adaptive loop filter (ALF) for a component of a picture based on the first index; and processing pixels in the picture with the ALF.
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公开(公告)号：US20220094990A1
公开(公告)日：2022-03-24
申请号：US17448274
申请日：2021-09-21
发明人： Jie CHEN , Ru-Ling LIAO , Jiancong LUO , Yan YE
IPC分类号： H04N19/96 , H04N19/159 , H04N19/186 , H04N19/184
摘要： The present disclosure provides methods for processing video content. One exemplary method comprises: receiving a bitstream comprising coded video data; determining a first parameter of a coding block; determining, according to the first parameter, one or more second parameters associated with a delta quantization parameter (QP) value or a chroma QP offset value; and determining, according to the one or more second parameters, at least one of the delta QP value or the chroma QP offset value.
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公开(公告)号：US20210185321A1
公开(公告)日：2021-06-17
申请号：US17103144
申请日：2020-11-24
发明人： Ru-Ling LIAO , Yan YE , Jie CHEN , Jiancong LUO
IPC分类号： H04N19/132 , H04N19/172 , H04N19/176 , H04N19/119
摘要： The present disclosure provides video processing method and apparatus. An exemplary method includes: determining whether a coding block comprises samples outside a picture boundary; and in response to the coding block being determined to comprise samples outside a picture boundary, performing quad tree splitting of the coding block regardless of a value of a first parameter, wherein the first parameter indicates whether the quad tree is allowed to be used to split the coding block.
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