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公开(公告)号：US12096006B2
公开(公告)日：2024-09-17
申请号：US18161453
申请日：2023-01-30
发明人： Jie Chen , Yan Ye , Ru-Ling Liao
IPC分类号： H04N19/174 , H04N19/119 , H04N19/30 , H04N19/70 , H04N19/96
CPC分类号： H04N19/174 , H04N19/119 , H04N19/30 , H04N19/70 , H04N19/96
摘要： The present disclosure provides a computer-implemented method for encoding or decoding video. The method includes encoding or decoding, in a plurality of picture parameter sets (PPS) associated with pictures of a coded layer video sequence (CLVS), corresponding first PPS flags indicating whether pictures are allowed to be partitioned into a plurality of tiles or slices. In a first PPS, a corresponding first PPS flag with a first value indicates a first picture of the CLVS is unpartitioned, and in a second PPS, another corresponding first PPS flag with a second value being different from the first value indicates that a second picture of the CLVS is allowed to be partitioned.
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公开(公告)号：US11956463B2
公开(公告)日：2024-04-09
申请号：US18067166
申请日：2022-12-16
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 indicating whether horizontal wrap-around motion compensation is enabled for the one or more pictures; and in response to the horizontal wrap-around motion compensation being enabled for the one or more pictures, receiving a parameter associated with a wrap-around motion compensation offset, the wrap-around motion compensation offset being associated with the one or more pictures, wherein a value of the wrap-around motion compensation offset is less than or equal to a difference minus 2, and the difference is obtained by a quotient of a picture width in luma samples divided by a minimum luma coding block size minus a quotient of a luma coding tree block size divided by the minimum luma coding block size.
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公开(公告)号：US11750816B2
公开(公告)日：2023-09-05
申请号：US17538397
申请日：2021-11-30
发明人： Xinwei Li , Ru-Ling Liao , Jie Chen , Yan Ye
IPC分类号： H04N19/186 , H04N19/132 , H04N19/172 , H04N19/105
CPC分类号： H04N19/132 , H04N19/105 , H04N19/172 , H04N19/186
摘要： The present disclosure provides a video data processing method for cross-component sample adaptive offset. The method includes receiving a bitstream; determining a category index of a target chroma sample, wherein the category index is determined based on a first reconstructed value associated with a co-located luma sample and a second reconstructed value associated with the target chroma sample; decoding an index indicating an offset corresponding to the category index from the bitstream; determining the offset based on the index; and adding the offset to a third reconstructed value associated with the target chroma sample.
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公开(公告)号：US11706439B2
公开(公告)日：2023-07-18
申请号：US17203004
申请日：2021-03-16
发明人： Ru-Ling Liao , Jie Chen , Yan Ye
IPC分类号： H04N19/176 , H04N19/105 , H04N19/159 , H04N19/513
CPC分类号： H04N19/513 , H04N19/105 , H04N19/159 , H04N19/176
摘要： The present disclosure provides a computer-implemented method for decoding video. The method includes receiving a bitstream including a coding unit of a video frame, the coding unit being coded in a skip mode or a direct mode; determining whether the coding units has a width greater than a threshold width or a height greater than a threshold height; in response to the coding unit having the width greater than the threshold width or the height greater than the threshold height, enabling a motion vector angular prediction process to store one or more motion vector angular prediction candidates in a candidate list storing a plurality of motion candidates associated with the coding unit; and performing an inter prediction to the coding unit according to the candidate list and an index parsed from the bitstream.
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公开(公告)号：US11638019B2
公开(公告)日：2023-04-25
申请号：US17387242
申请日：2021-07-28
发明人： Jie Chen , Ru-Ling Liao , Yan Ye , Xinwei Li
IPC分类号： H04N19/186 , H04N19/176 , H04N19/196 , H04N19/132 , H04N19/46
摘要： The present disclosure provides methods, apparatus and non-transitory computer readable medium for processing video data. According to certain disclosed embodiments, a method includes: determining a set of parameters from a plurality of sets of parameters wherein the set of parameters includes a scaling factor; determining a predicted sample value of a first chroma component based on the set of the parameters, a reconstructed sample value of a luma component and a reconstructed sample value of a second chroma component; and signaling an index associated with the set of parameters in a bitstream.
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公开(公告)号：US11490097B2
公开(公告)日：2022-11-01
申请号：US17127024
申请日：2020-12-18
发明人： Jie Chen , Yan Ye , Jiancong Luo , Ru-Ling Liao
IPC分类号： H04N19/136 , H04N19/184 , H04N19/176 , H04N19/172 , H04N19/117
摘要： The present disclosure provides methods and apparatuses for signaling subpicture partitioning information. An exemplary method includes: determining, according to a subpicture information present flag signaled in a bitstream, whether the bitstream comprises subpicture information; and in response to the bitstream comprising the subpicture information, signaling in the bitstream at least one of: a number of subpictures in a picture, a width, a height, a position, and an identifier (ID) mapping of a target subpicture, a subpic_treated_as_pic_flag, and a loop_filter_across_subpic_enabled_flag.
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公开(公告)号：US11451801B2
公开(公告)日：2022-09-20
申请号：US17110858
申请日：2020-12-03
发明人： Ru-Ling Liao , Mohammed Golam Sarwer , Jie Chen , Yan Ye , Jiancong Luo
IPC分类号： H04N19/186 , H04N19/124 , H04N19/103 , H04N19/182
摘要： The present disclosure provides systems and methods for performing palette coding of video data. According to certain disclosed embodiments, the methods include: classifying pixels of a coding unit into a first plurality of clusters; and determining, according to the first plurality of clusters, a palette table for the coding unit.
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公开(公告)号：US11356679B2
公开(公告)日：2022-06-07
申请号：US17063064
申请日：2020-10-05
发明人： Ru-Ling Liao , Jie Chen , Yan Ye , Jiancong Luo
IPC分类号： H04N19/14 , H04N19/103 , H04N19/172 , H04N19/186
摘要： The present disclosure provides methods and apparatuses for processing chroma sampled pictures. An exemplary video processing method includes: determining whether a chroma component is included in a sequence of frames; and in response to a determination that the chroma component is included in the sequence, activating a sub-process for processing the sequence, wherein the sub-process comprises one or more of joint coding for chroma residues (JCCR), block differential pulse coded modulation (BDPCM), palette mode, or adaptive color transform (ACT).
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公开(公告)号：US11146829B2
公开(公告)日：2021-10-12
申请号：US16999730
申请日：2020-08-21
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：US11051022B2
公开(公告)日：2021-06-29
申请号：US16887048
申请日：2020-05-29
发明人： Yan Ye , Jie Chen , Ruling Liao
IPC分类号： H04N19/00 , H04N19/132 , H04N19/176 , H04N19/186 , H04N19/14
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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