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41.发明申请公开(公告)号：US20210297697A1
公开(公告)日：2021-09-23
申请号：US17338953
申请日：2021-06-04
IPC分类号： H04N19/597 , H04N19/187 , H04N19/70 , H04N19/17 , H04N19/136 , H04N19/105 , H04N19/182 , H04N19/30 , H04N19/523
摘要： Methods, apparatuses and computer program products are described for video encoding. A method can include reconstructing a 360-degree panoramic source picture for inter-layer prediction and deriving an inter-layer reference picture from the 360-degree panoramic source picture. Deriving can include upsampling at least a part of the 360-degree panoramic source picture. Upsampling can include filtering samples of a border region of the 360-degree panoramic source picture using, at least in part, one or more sample values of an opposite side border region and one or more variable values associated with one or more blocks of the opposite side border region. Deriving can include determining a reference region that crosses a picture boundary of the 360-degree panoramic source picture and including in the reference region at least one of sample values of the opposite side border region and variable values associated with blocks of the opposite side border region.
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公开(公告)号：US20210211733A1
公开(公告)日：2021-07-08
申请号：US17140512
申请日：2021-01-04
摘要： An apparatus includes at least one processor; and at least one non-transitory memory including computer program code; wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus at least to perform: encode or decode a high-level bitstream syntax for at least one neural network; wherein the high-level bitstream syntax comprises at least one information unit having metadata or compressed neural network data of a portion of the at least one neural network; and wherein a serialized bitstream comprises one or more of the at least one information unit.
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公开(公告)号：US10904543B2
公开(公告)日：2021-01-26
申请号：US16716141
申请日：2019-12-16
IPC分类号： H04N19/42 , H04N19/70 , H04N19/30 , H04N19/44 , H04N19/597
摘要： The invention relates to concatenating or splicing of scalable video bitstreams. There are disclosed various methods, apparatuses and computer program products for video encoding and decoding and modifying coded video bitstreams. In some embodiments, indications are provided in the coded video bitstream to indicate a layer-wise decoding start-up process. These indications may be generated by encoders or splicers.
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公开(公告)号：US10674170B2
公开(公告)日：2020-06-02
申请号：US16404168
申请日：2019-05-06
IPC分类号： H04N19/46 , H04N19/169 , H04N19/187 , H04N19/30 , H04N19/70 , H04N19/103 , H04N19/172 , H04N19/33 , H04N19/44 , H04N19/593 , H04N19/61 , H04N21/2343 , H04N21/647
摘要： A method and related apparatus, the method comprising receiving a bitstream comprising picture data units on one or more scalability layers; determining a first set of layers that are decoded from the bitstream; decoding, from or along the bitstream, a first indication indicative of an end of a coded picture, wherein the first indication is associated with a first layer identifier; decoding, from or along the bitstream, a second indication indicative of a second set of layers that are not present in an access unit; and determining an end of the access unit, when the first layer identifier is the greatest among the first set of layers, or all layers with a layer identifier greater than the first identifier among the first set of layers are included in the second set of layers.
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公开(公告)号：US10609407B2
公开(公告)日：2020-03-31
申请号：US14325615
申请日：2014-07-08
摘要： There are disclosed various methods, apparatuses and computer program products for video encoding and decoding. In some embodiments a method comprises at least one of the following: encoding into a bitstream an indication that motion fields are stored, but only for inter-layer motion prediction; encoding into a bitstream an indication on a limited scope of motion field usage; encoding into a bitstream an indication whether or not to use the motion field for prediction; encoding into a bitstream an indication of storage parameters for storing motion information.
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公开(公告)号：US10511847B2
公开(公告)日：2019-12-17
申请号：US16119363
申请日：2018-08-31
IPC分类号： H04N19/42 , H04N19/70 , H04N19/30 , H04N19/44 , H04N19/597
摘要： The invention relates to concatenating or splicing of scalable video bitstreams. There are disclosed various methods, apparatuses and computer program products for video encoding and decoding and modifying coded video bitstreams. In some embodiments, indications are provided in the coded video bitstream to indicate a layer-wise decoding start-up process. These indications may be generated by encoders or splicers.
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公开(公告)号：US10397610B2
公开(公告)日：2019-08-27
申请号：US15333048
申请日：2016-10-24
IPC分类号： H04N19/597 , H04N19/70 , H04N19/30 , H04N19/463 , H04N19/50 , H04N19/117 , H04N19/124 , H04N19/513 , H04N19/61 , H04N19/58 , H04N19/172 , H04N19/174 , H04N19/176 , H04N19/103 , H04N19/19
摘要： There is provided a slice header prediction method and apparatuses for 3D video encoding and decoding. In some example embodiments the following features can be derived from the header prediction method. Any decoding order of texture and depth view components may be supported. Also flexible prediction of syntax elements from any slice header appearing earlier in decoding order within the same access unit is allowed. The prediction can be turned on or off on view component basis. The syntax elements of the slice header may be categorized in a few sets and the use of the prediction as well as the prediction source for each set can be individually controlled. By using some example embodiments of the method all syntax elements of the slice header may be predicted.
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公开(公告)号：US20190261011A1
公开(公告)日：2019-08-22
申请号：US16404168
申请日：2019-05-06
IPC分类号： H04N19/46 , H04N19/30 , H04N19/44 , H04N19/593 , H04N19/70 , H04N19/187 , H04N19/103 , H04N19/33 , H04N19/169 , H04N19/172
摘要： A method and related apparatus, the method comprising receiving a bitstream comprising picture data units on one or more scalability layers; determining a first set of layers that are decoded from the bitstream; decoding, from or along the bitstream, a first indication indicative of an end of a coded picture, wherein the first indication is associated with a first layer identifier; decoding, from or along the bitstream, a second indication indicative of a second set of layers that are not present in an access unit; and determining an end of the access unit, when the first layer identifier is the greatest among the first set of layers, or all layers with a layer identifier greater than the first identifier among the first set of layers are included in the second set of layers.
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公开(公告)号：US10291561B2
公开(公告)日：2019-05-14
申请号：US14617266
申请日：2015-02-09
摘要： A method comprising: receiving a first description of a first file, the first description including properties of at least a derived image included in or referred to by the first file; determining, based on the properties of the derived image, whether to obtain the derived image; and in response to determining to obtain the derived image, obtaining the first file comprising the derived image.
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公开(公告)号：US10284867B2
公开(公告)日：2019-05-07
申请号：US14973405
申请日：2015-12-17
IPC分类号： H04N19/46 , H04N19/169 , H04N19/187 , H04N19/30 , H04N19/70 , H04N19/103 , H04N19/172 , H04N19/33 , H04N19/44 , H04N19/593 , H04N19/61 , H04N21/2343 , H04N21/647
摘要： A method and related apparatus, the method comprising receiving a bitstream comprising picture data units on one or more scalability layers; determining a first set of layers that are decoded from the bitstream; decoding, from or along the bitstream, a first indication indicative of an end of a coded picture, wherein the first indication is associated with a first layer identifier; decoding, from or along the bitstream, a second indication indicative of a second set of layers that are not present in an access unit; and determining an end of the access unit, when the first layer identifier is the greatest among the first set of layers, or all layers with a layer identifier greater than the first identifier among the first set of layers are included in the second set of layers.
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