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公开(公告)号：EP4336850A2
公开(公告)日：2024-03-13
申请号：EP24153854.5
申请日：2017-07-07
IPC分类号： H04N21/4728
摘要： Systems and methods are described for providing viewers of adaptive bit rate (ABR) streaming video with the option to view alternative streams in which an alternative tone mapping is applied to one or more regions of interest. The availability of streams with alternative tone mappings may be identified in a media presentation description (MPD) in an MPEG-DASH system. In some embodiments, the streaming video is divided into slices, and alternative tone mappings are applied to regions of interest within the slices. When a server receives a request from a client device for alternative tone mappings of different regions, slices with the appropriate mapping may be assembled on demand and delivered to the requestor as a single video stream. Tone mappings may be used, for example, to highlight particular players in a sporting event.
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公开(公告)号：EP4336840A2
公开(公告)日：2024-03-13
申请号：EP24153925.3
申请日：2018-05-17
发明人： BORDES, Philippe , CHEN, Ya , RACAPE, Fabien , GALPIN, Franck
IPC分类号： H04N19/82
摘要： A decoding method for decoding blocks of a picture part is disclosed that comprises :
- decoding a plurality of candidate sets of filter parameters from a bitstream;
- decoding for a current block of said picture an index identifying one of the candidate sets of filter parameters from said bitstream;
- decoding said current block from said bitstream; and
- filtering said decoded current block with the candidate set of filter parameters identified by said decoded index.-
公开(公告)号：EP4090023A1
公开(公告)日：2022-11-16
申请号：EP22180597.1
申请日：2017-09-25
IPC分类号： H04N19/176 , H04N19/119 , H04N19/136 , H04N19/13 , H04N19/91
摘要： A decoding method for decoding a block of an image is disclosed that comprises :
- determining a split mode for said block in a set of split modes;
- splitting said block into at least two sub-blocks responsive to said split mode;
- decoding each of the at least two sub-blocks;
wherein said set of split modes comprises at least one split mode for asymmetrically splitting said block into the at least two sub-blocks.-
公开(公告)号：EP4404572A3
公开(公告)日：2024-10-16
申请号：EP24181454.0
申请日：2016-07-08
发明人： HE, Yong , HE, Yuwen , YE, Yan , XIU, Xiaoyu
IPC分类号： H04N19/117 , H04N19/136 , H04N19/176 , H04N19/182 , H04N19/186 , H04N19/467 , H04N19/80
摘要： Cross plane filtering may be used for enhanced chroma coding. An indication of a cross-plane filter associated with a current picture may be received. The current picture may include an intra-coded video block and a plurality of reference samples. The plurality of reference samples may be used to predict the intra-coded video block. A luma sample region may be determined in the current picture. The luma sample region may determined to enhance a corresponding chroma sample in the current picture. The cross-plane filter may be applied to a plurality of luma samples in the luma sample region to determine an offset. The cross-plane filter may be a high pass filter. The offset may be applied to the corresponding chroma sample to determine an enhanced chroma sample.
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公开(公告)号：EP4336840A3
公开(公告)日：2024-05-29
申请号：EP24153925.3
申请日：2018-05-17
发明人： BORDES, Philippe , CHEN, Ya , RACAPE, Fabien , GALPIN, Franck
IPC分类号： H04N19/82 , H04N19/147 , H04N19/117 , H04N19/70 , H04N19/186
CPC分类号： H04N19/70 , H04N19/147 , H04N19/82 , H04N19/186 , H04N19/117
摘要： A decoding method for decoding blocks of a picture part is disclosed that comprises :
- decoding a plurality of candidate sets of filter parameters from a bitstream;
- decoding for a current block of said picture an index identifying one of the candidate sets of filter parameters from said bitstream;
- decoding said current block from said bitstream; and
- filtering said decoded current block with the candidate set of filter parameters identified by said decoded index.-
6.发明公开
公开(公告)号：EP4258089A2
公开(公告)日：2023-10-11
申请号：EP23194143.6
申请日：2018-08-08
IPC分类号： G06F3/038
摘要： A method and device for moving an indicator on an on-screen keyboard depicted on a display device is described. A series of signals transmitted from a remotecontrol unit are received at the display device. The indicator on a grid depicted on the display device is moved based on the received signals. A reaction time for moving the indicator on the grid varies based on the series of signals received from the remotecontrol unit.
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公开(公告)号：EP4376417A2
公开(公告)日：2024-05-29
申请号：EP24164082.0
申请日：2017-09-25
IPC分类号： H04N19/91
CPC分类号： H04N19/176 , H04N19/13 , H04N19/91 , H04N19/136 , H04N19/119
摘要： A decoding method for decoding a block of an image is disclosed that comprises:
- determining a split mode for said block in a set of split modes;
- splitting said block into at least two sub-blocks responsive to said split mode;
- decoding each of the at least two sub-blocks;
wherein said set of split modes comprises at least one split mode for asymmetrically splitting said block into the at least two sub-blocks.-
8.发明公开
公开(公告)号：EP4258089A3
公开(公告)日：2023-12-13
申请号：EP23194143.6
申请日：2018-08-08
IPC分类号： G06F3/04892 , G06F3/023 , H04N21/422 , H04N21/47
摘要： A method and device for moving an indicator on an on-screen keyboard depicted on a display device is described. A series of signals transmitted from a remotecontrol unit are received at the display device. The indicator on a grid depicted on the display device is moved based on the received signals. A reaction time for moving the indicator on the grid varies based on the series of signals received from the remotecontrol unit.
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公开(公告)号：EP4224717A1
公开(公告)日：2023-08-09
申请号：EP23168987.8
申请日：2010-06-22
摘要： The invention relates to a method for arithmetic encoding of symbols in a stream (F), comprising encoding (106) a current symbol (Sc) with a current probability model (Pc), and updating (108) the current probability model according to the encoding (106) of the current symbol (Sc). The method further comprises, in the switching points (100) distributed in said stream (F), selecting (102) a probability model from a set (L) of at least two probability models; encoding (104) an identifier of the selected probability model; and adding (105) in a subset (E) the current probability model, the selected probability model (Pm) becoming the current probability model (Pc) for encoding symbols in blocks following the switching point. The invention also relates to a corresponding method for arithmetic decoding.
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公开(公告)号：EP4161075A1
公开(公告)日：2023-04-05
申请号：EP22195782.2
申请日：2011-08-08
IPC分类号： H04N19/159
摘要： The invention is made in the field of image block encoding and reconstruction.
A method for reconstructing a current block of an image is described, the current block being encoded using predictive encoding of segments resulting from geometry adaptive block partitioning of said current block. After decoding encoded data comprising at least one flag and motion vectors, wherein blocks referenced by the motion vectors are used for prediction of segments of the current block, one of the at least one flag and an encoding order of the motion vectors in the encoded data is used for determining which of the referenced blocks is used for predicting the at least one edge and the other one of the at least one flag and an encoding order of the motion vectors in the encoded data is used for determining a segment of the determined block, the determined block being geometry adaptive block partitioned into segments from which the segment is determined for predicting one of the segments of the current block.
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