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公开(公告)号：US20240364877A1
公开(公告)日：2024-10-31
申请号：US18652687
申请日：2024-05-01
IPC分类号： H04N19/117 , H04N19/176 , H04N19/186 , H04N19/46 , H04N19/82
CPC分类号： H04N19/117 , H04N19/176 , H04N19/186 , H04N19/46 , H04N19/82
摘要： A method of controlling an Adaptive Loop Filter comprises obtaining for a slice containing one or more coding tree blocks, data indicating a number of available alternative chroma filters, obtaining for a coding tree block in the slice, an alternative filter index identifying one of the available alternative chroma filters, and selecting the alternative chroma filter identified by the index to filter chroma image data in the coding tree block.
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公开(公告)号：US20240348779A1
公开(公告)日：2024-10-17
申请号：US18652710
申请日：2024-05-01
IPC分类号： H04N19/117 , H04N19/176 , H04N19/186 , H04N19/46 , H04N19/82
CPC分类号： H04N19/117 , H04N19/176 , H04N19/186 , H04N19/46 , H04N19/82
摘要： A method of controlling an Adaptive Loop Filter comprises obtaining for a slice containing one or more coding tree blocks, data indicating a number of available alternative chroma filters, obtaining for a coding tree block in the slice, an alternative filter index identifying one of the available alternative chroma filters, and selecting the alternative chroma filter identified by the index to filter chroma image data in the coding tree block.
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公开(公告)号：US20230370594A1
公开(公告)日：2023-11-16
申请号：US18355933
申请日：2023-07-20
IPC分类号： H04N19/117 , H04N19/86 , H04N19/132 , H04N19/176 , H04N19/136
CPC分类号： H04N19/117 , H04N19/86 , H04N19/132 , H04N19/176 , H04N19/136
摘要： A method of controlling an Adaptive Loop Filter for one or more image portions of an image, the method comprising controlling filtering on a first sample of an image portion based on one or more neighbouring sample value(s) of the first sample value, wherein the controlling uses a nonlinear function which has one or more variables based on one or more of the neighbouring sample value(s).
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公开(公告)号：US20220360804A1
公开(公告)日：2022-11-10
申请号：US17752677
申请日：2022-05-24
IPC分类号： H04N19/46 , H04N19/105 , H04N19/13 , H04N19/176
摘要： The invention relates to signalling affine mode in an encoded video stream; in particular determining a list of merge candidates corresponding to blocks neighbouring a current block; and signalling affine mode for said current block; wherein signalling said affine mode comprises decoding a context encoded flag from the data stream, and wherein the context variable for said flag is determined based on whether or not said neighbouring blocks use affine mode. Related encoding and decoding methods and devices are also disclosed.
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公开(公告)号：US20220094989A1
公开(公告)日：2022-03-24
申请号：US17541058
申请日：2021-12-02
IPC分类号： H04N19/82 , H04N19/117 , H04N19/14 , H04N19/176 , H04N19/182 , H04N19/86
摘要： A method of filtering a block of pixels in an image, comprising obtaining a first clipping control parameter (tc) value based on a quantization parameter of the block; comparing a first value of a first pixel located on one side of an edge in said block and a second value of a second pixel located on the other side of the edge in said block with a predetermined threshold derived from the first clipping control parameter value; and determining whether to apply a strong filtering to the first pixel based on the result of the comparison, wherein: the strong filtering comprises filtering the first pixel value so that the filtered first pixel value differs from the first pixel value by no more than a range value based on the clipping control parameter (tc), the ration between two range values corresponding to successive values of bitdepths being strictly lower than 2.
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公开(公告)号：US20210409798A1
公开(公告)日：2021-12-30
申请号：US16625604
申请日：2018-06-20
发明人： Frédéric MAZE , Franck DENOUAL , Naël OUEDRAOGO , Jonathan TAQUET , Tomoya SAKAI
IPC分类号： H04N21/236 , H04N21/81 , H04N21/434 , H04N21/235
摘要： The invention relates to a method for transmitting from a server to a client, encoded media data corresponding to a projection of a wide view of a scene, the method comprising: Encapsulating the encoded data into tracks, Wherein information is provided for signaling that the client needs to parse other encoded data to display at least the encoded data encapsulated in a given track.
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公开(公告)号：US20210352275A1
公开(公告)日：2021-11-11
申请号：US17283163
申请日：2019-10-18
IPC分类号： H04N19/105 , H04N19/13 , H04N19/70 , H04N19/176
摘要： A method of encoding a motion information predictor index, comprising: generating a list of motion information predictor candidates; when an Affine Merge mode is used, selecting one of the motion information predictor candidates in the list as an Affine Merge mode predictor; when a non-Affine Merge mode is used, selecting one of the motion information predictor candidates in the list as a non-Affine Merge mode predictor; and generating a motion information predictor index for the selected motion information predictor candidate using CABAC coding, one or more bits of the motion information predictor index being bypass CABAC coded.
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公开(公告)号：US20210168381A1
公开(公告)日：2021-06-03
申请号：US17044561
申请日：2019-03-25
发明人： Naël OUEDRAOGO , Frédéric MAZE , Jonathan TAQUET , Hervé RUELLAN , Franck DENOUAL , Masahiko TAKAKU
IPC分类号： H04N19/179 , H04N19/117 , H04N19/46 , H04N19/70 , H04N21/84
摘要： A method of encapsulating entities in a file, wherein the method comprises for at least one entity: generating a grouping data structure associated with at least one of the entities, and indicating that the at least one of the entities belong to a same group; encapsulating the grouping data structure and the entities in the file; wherein the grouping data structure is a proprietary grouping data structure comprising an universally unique identifier identifying the type of the proprietary grouping.
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公开(公告)号：US20180053389A1
公开(公告)日：2018-02-22
申请号：US15675501
申请日：2017-08-11
发明人： Naël OUEDRAOGO , Jonathan TAQUET , Eric NASSOR
IPC分类号： G08B13/196 , H04N5/78 , H04N21/218 , H04N21/845 , G06F17/30 , H04L29/06 , H04N5/232 , H04N21/231
摘要： The present invention relates to a method for managing copies of media samples recorded by a given network camera of a system comprising a plurality of interconnected network cameras, the method comprising the following steps: obtaining a topology of the system as a set of relationships existing between the network cameras of the plurality, based on media samples recorded by these network cameras; selecting a subset of network cameras from the plurality, based on the determined topology and a predetermined level of redundancy to achieve, for the storage of the copies of the media samples recorded by the given network camera, in storage units of network cameras of the subset.
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公开(公告)号：US20240107054A1
公开(公告)日：2024-03-28
申请号：US18517717
申请日：2023-11-22
IPC分类号： H04N19/513 , H04N19/13 , H04N19/44 , H04N19/70
CPC分类号： H04N19/513 , H04N19/13 , H04N19/44 , H04N19/70
摘要： A method of encoding a motion information predictor index for an Affine Merge mode, comprising: generating a list of motion information predictor candidates; selecting one of the motion information predictor candidates in the list as an Affine Merge mode predictor; and generating a motion information predictor index for the selected motion information predictor candidate using CABAC coding, one or more bits of the motion information predictor index being bypass CABAC coded.
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