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1.发明公开
公开(公告)号：EP4404561A3
公开(公告)日：2024-08-21
申请号：EP24167076.9
申请日：2011-02-17
发明人： Julien, Robilliard , Neusinger, Matthias , Helmrich, Christian , Hilpert, Johannes , Rettelbach, Nikolaus , Disch, Sascha , Edler, Bernd
IPC分类号： G10L19/06 , G10L19/008 , H04N19/50 , H04N19/105 , H04N19/146 , H04N19/154 , H04N19/156 , H04N19/70
CPC分类号： G10L19/008 , G10L19/06 , H04N19/50 , H04N19/105 , H04N19/156 , H04N19/154 , H04N19/146 , H04N19/70
摘要： An audio or video encoder and an audio or video decoder are based on a combination of two audio or video channels (201, 202) to obtain a first combination signal (204) as a mid signal and a residual signal (205) which can be derived using a predicted side signal derived from the mid signal. The first combination signal and the prediction residual signal are encoded (209) and written (212) into a data stream (213) together with the prediction information (206) derived by an optimizer (207) based on an optimization target (208) and a prediction direction indicator indicating a prediction direction associated with the residual signal. A decoder uses the prediction residual signal, the first combination signal, the prediction direction indicator and the prediction information to derive a decoded first channel signal and a decoded second channel signal. In an encoder example or in a decoder example, a real-to-imaginary transform can be applied for estimating the imaginary part of the spectrum of the first combination signal. For calculating the prediction signal used in the derivation of the prediction residual signal, the real-valued first combination signal is multiplied by a real portion of the complex prediction information and the estimated imaginary part of the first combination signal is multiplied by an imaginary portion of the complex prediction information.
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2.发明公开
公开(公告)号：EP4404559A3
公开(公告)日：2024-08-21
申请号：EP24167074.4
申请日：2011-02-17
发明人： Julien, Robilliard , Neusinger, Matthias , Helmrich, Christian , Hilpert, Johannes , Rettelbach, Nikolaus , Disch, Sascha , Edler, Bernd
IPC分类号： G10L19/06 , G10L19/008 , H04N19/50 , H04N19/105 , H04N19/146 , H04N19/154 , H04N19/156 , H04N19/70
CPC分类号： G10L19/008 , G10L19/06 , H04N19/50 , H04N19/105 , H04N19/156 , H04N19/154 , H04N19/146 , H04N19/70
摘要： An audio or video encoder and an audio or video decoder are based on a combination of two audio or video channels (201, 202) to obtain a first combination signal (204) as a mid signal and a residual signal (205) which can be derived using a predicted side signal derived from the mid signal. The first combination signal and the prediction residual signal are encoded (209) and written (212) into a data stream (213) together with the prediction information (206) derived by an optimizer (207) based on an optimization target (208) and a prediction direction indicator indicating a prediction direction associated with the residual signal. A decoder uses the prediction residual signal, the first combination signal, the prediction direction indicator and the prediction information to derive a decoded first channel signal and a decoded second channel signal. In an encoder example or in a decoder example, a real-to-imaginary transform can be applied for estimating the imaginary part of the spectrum of the first combination signal. For calculating the prediction signal used in the derivation of the prediction residual signal, the real-valued first combination signal is multiplied by a real portion of the complex prediction information and the estimated imaginary part of the first combination signal is multiplied by an imaginary portion of the complex prediction information.
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公开(公告)号：EP4388743A1
公开(公告)日：2024-06-26
申请号：EP21856987.9
申请日：2021-11-16
发明人： BRAND, Fabian , SEILER, Jurgen , KAUP, Andre , ALSHINA, Elena Alexandrovna , SOLOVYEV, Timofey Mikhailovich
CPC分类号： H04N19/46 , H04N19/50 , G06N3/0455 , G06N3/0464 , G06N3/084 , G06N3/0475 , G06N3/047 , G06N3/0442 , G06N3/088
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公开(公告)号：EP4307678A3
公开(公告)日：2024-05-22
申请号：EP23213601.0
申请日：2019-11-06
发明人： ZHANG, Li , ZHANG, Kai , LIU, Hongbin , WANG, Yue
IPC分类号： H04N19/186 , H04N19/50 , H04N19/42 , H04N19/109 , H04N19/70
CPC分类号： H04N19/176 , H04N19/70 , H04N19/50 , H04N19/109 , H04N19/159 , H04N19/105 , H04N19/196 , H04N19/119 , H04N19/521 , H04N19/139 , H04N19/52 , H04N19/186 , H04N19/51 , H04N19/42 , H04N19/583 , H04N19/46 , H04N19/18
摘要： A method for processing a video includes performing a determination, by a processor, that a first video block is partitioned to include a first prediction portion that is non-rectangular and non-square; adding a first motion vector (MV) prediction candidate associated with the first prediction portion to a motion candidate list associated with the first video block, wherein the first MV prediction candidate is derived from a sub-block MV prediction candidate; and performing further processing of the first video block using the motion candidate list.
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公开(公告)号：EP3417623A1
公开(公告)日：2018-12-26
申请号：EP17708059.5
申请日：2017-02-15
发明人： SAID, Amir , ZHAO, Xin , KARCZEWICZ, Marta
CPC分类号： H04N19/61 , G06T2207/20048 , H04N19/124 , H04N19/159 , H04N19/176 , H04N19/439 , H04N19/44 , H04N19/50 , H04N19/60 , H04N19/70
摘要： A device determines a Compact Multi-Pass Transform (CMPT) from a plurality of CMPTs. Additionally, the device decompresses CMPT parameters for the CMPT. In instances where the device decodes video data, the device applies the CMPT to a coefficient block to reconstruct a residual block and decodes, based on a predictive block and the residual block, a current block of a picture of the video data. In instances where the device encodes video data, the device applies the CMPT to a residual block to construct a coefficient block and generates for output information indicating coefficient values for the coefficient block.
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公开(公告)号：EP3177019B1
公开(公告)日：2018-12-26
申请号：EP17152143.8
申请日：2012-09-10
申请人： NTT DoCoMo, Inc.
IPC分类号： H04N19/463 , H04N19/503 , H04N19/70 , H04N19/196
CPC分类号： H04N19/50 , H04N19/105 , H04N19/124 , H04N19/13 , H04N19/139 , H04N19/15 , H04N19/152 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/196 , H04N19/42 , H04N19/433 , H04N19/44 , H04N19/463 , H04N19/503 , H04N19/52 , H04N19/56 , H04N19/61 , H04N19/625 , H04N19/70
摘要： The problem of the conventional technology was to repeatedly encode the same information using many bits in encoding of buffer description information about reference pictures to be used in video predictive encoding. A video predictive encoding device includes: input means to implement input of pictures constituting a video sequence; encoding means which conducts predictive coding of a target picture using, as reference pictures, pictures having been encoded and then reconstructed in the past, to generate compressed picture data; reconstruction means to decode the compressed picture data to reconstruct a reproduced picture; picture storage means to store the reproduced picture as a reference picture for encoding of a subsequent picture; and buffer management means to control the picture storage means, wherein the buffer management means controls the picture storage means, (prior to predictive encoding of the target picture), on the basis of buffer description information BD[k] related to reference pictures which are used in predictive encoding of the target picture, encodes the buffer description information BD[k] with reference to buffer description information BD[m] for a picture different from the target picture, and adds encoded data thereof to the compressed picture data.
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7.发明授权
公开(公告)号：EP2950542B1
公开(公告)日：2018-12-26
申请号：EP15168669.8
申请日：2010-08-16
发明人： Jung, Hae-Kyung , Cheon, Min-Su , Kim, Jung-Hye , Kim, Il-Koo
IPC分类号： H04N19/52 , H04N19/61 , H04N19/196 , H04N19/129 , H04N19/119 , H04N19/107 , H04N19/122 , H04N19/147 , H04N19/176 , H04N19/96 , H04N19/17 , H04N19/70
CPC分类号： H04N19/129 , H04N19/107 , H04N19/119 , H04N19/122 , H04N19/132 , H04N19/146 , H04N19/147 , H04N19/157 , H04N19/167 , H04N19/176 , H04N19/187 , H04N19/198 , H04N19/23 , H04N19/30 , H04N19/50 , H04N19/52 , H04N19/593 , H04N19/61 , H04N19/70 , H04N19/88 , H04N19/96
摘要： A method and apparatus for decoding a video and a method and apparatus for encoding a video are provided. The method for decoding the video includes: receiving and parsing a bitstream of an encoded video; and decoding encoded image data for maximum coding unit based on information about coded depth and encoding mode for the maximum coding unit, in consideration of a raster scanning order for the maximum coding unit and a zigzag scanning order for coding units of the maximum coding unit according to depths.
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公开(公告)号：EP3410731A1
公开(公告)日：2018-12-05
申请号：EP18185769.9
申请日：2013-06-25
申请人： FUJITSU LIMITED
IPC分类号： H04N21/44 , G11B27/031 , H04N19/70
CPC分类号： H04N19/50 , G11B27/031 , H04N19/132 , H04N19/44 , H04N19/46 , H04N19/503 , H04N19/68 , H04N19/70 , H04N21/23424 , H04N21/44016
摘要： A video encoding apparatus appends decoding delay correction information and display delay correction information to encoded video data in order to ensure that even when one or more pictures that are later in encoding order in the video data than a first picture that may potentially be spliced to a trailing end of other encoded video data have been discarded, the first picture and subsequent pictures in the encoded video data can be continuously decoded and displayed by a video decoding apparatus. The video decoding apparatus corrects the decoding delay and display delay of the first picture and its subsequent pictures by using the decoding delay correction information and display delay correction information.
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9.发明授权
公开(公告)号：EP2932718B1
公开(公告)日：2018-11-28
申请号：EP13811078.8
申请日：2013-12-04
发明人： SEREGIN, Vadim , CHEN, Ying , CHEN, Jianle
IPC分类号： H04N19/30 , H04N19/33 , H04N19/463 , H04N19/50 , H04N19/59
摘要： An apparatus configured to code video information includes a memory unit and a processor in communication with the memory unit. The memory unit is configured to store video information associated with an enhancement layer having a first block and a base layer having a second block, the second block in the base layer corresponding to the first block in the enhancement layer. The processor is configured to predict, by inter layer prediction, the first block in the enhancement layer based on information derived from the second block in the base layer. At least a portion of the second block is located outside of a reference region of the base layer, the reference region being available for use for the inter layer prediction of the first block. The processor may encode or decode the video information.
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公开(公告)号：EP3403405A1
公开(公告)日：2018-11-21
申请号：EP17703841.1
申请日：2017-01-13
发明人： LI, Xiang , ZHANG, Li , CHIEN, Wei-Jung , CHEN, Jianle , ZHAO, Xin , KARCZEWICZ, Marta
IPC分类号： H04N19/105 , H04N19/50 , H04N19/176 , H04N19/119 , H04N19/172 , H04N19/136
CPC分类号： H04N19/44 , H04N19/105 , H04N19/119 , H04N19/136 , H04N19/172 , H04N19/176 , H04N19/50 , H04N19/60 , H04N19/70
摘要： A method of decoding video data including receiving a bitstream that includes a sequence of bits that forms a representation of a coded picture of the video data, partitioning the coded picture of the video data into a plurality of blocks using three or more different partition structures, and reconstructing the plurality of blocks of the coded picture of the video data. Partitioning the coded picture of the video data may include partitioning the coded picture of the video data into the plurality of blocks using the three or more different partition structures, wherein at least three of the three or more different partition structures may be used at each depth of a tree structure that represents how a particular block of the coded picture of the video data is partitioned.
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