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公开(公告)号：US09912966B2
公开(公告)日：2018-03-06
申请号：US14587852
申请日：2014-12-31
摘要： There is provided methods, apparatuses and computer program products for forming a plurality of syntax element assignments, each syntax element assignment relating to a subset of parameters of a set of parameters, and each syntax element assignment comprising assignments of values to said related subset of parameters, forming an index for each of said plurality of syntax element assignments, forming a plurality of combination parameter sets, each combination parameter set comprising indexes of a plurality of said syntax element assignments of said subsets of parameters, and encoding at least one said combination parameter set into a video bitstream for determining parameter values for video decoding.
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公开(公告)号：US09900609B2
公开(公告)日：2018-02-20
申请号：US14143986
申请日：2013-12-30
IPC分类号： H04N19/463 , H04N19/70 , H04N19/30 , H04N19/61
CPC分类号： H04N19/463 , H04N19/30 , H04N19/61 , H04N19/70
摘要： A method comprising encoding a bitstream comprising a base layer, a first enhancement layer and a second enhancement layer; encoding an indication of both the base layer and the first enhancement layer used for prediction for the second enhancement layer in the bitstream; encoding, in the bitstream, an indication of a first set of prediction types that is applicable from the base layer to the second enhancement layer, wherein the first set of prediction types is a subset of all prediction types available for prediction between layers, and encoding, in the bitstream, an indication of a second set of prediction types that is applicable from the base layer or the first enhancement layer to the second enhancement layer, wherein the second set of prediction types is a subset of all prediction types available for prediction between layers.
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公开(公告)号：US09897450B2
公开(公告)日：2018-02-20
申请号：US14717986
申请日：2015-05-20
CPC分类号： G01C21/165 , G01S19/14 , G01S19/49 , H04N5/765 , H04N9/8205
摘要： In accordance with an example embodiment of the invention there is at least a method and apparatus to perform operations including determining, by a media recording device, a differential location sample identifying a current location in time associated with the media recording device relative to a reference location; and at least one of storing and transmitting, by the media recording device, the differential location sample in an audio-visual media file. In accordance with another example embodiment of the invention there is at least a method and apparatus to perform operations including receiving and parsing, by a parser device, a plurality of differential location samples of an audio-visual media file to identify an absolute location of a media recording device.
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公开(公告)号：US09813722B2
公开(公告)日：2017-11-07
申请号：US14556504
申请日：2014-12-01
IPC分类号： H04N19/30 , H04N19/172 , H04N19/50 , H04N19/70
摘要： A method comprising: encoding pictures into a bitstream, the bitstream comprising at least two scalability layers, pictures being associated with access units and pictures being associated individually with one of the at least two scalability layers; indicating in the bitstream inter-layer prediction dependencies, indicative of direct reference layers, if any, of a first scalability layer and indirect reference layers, if any, of the first scalability layer; selecting an earlier picture in decoding order as a basis for deriving picture order count (POC) related variables for a current picture based on a pre-defined algorithm, the current picture being associated with a current scalability layer, wherein the earlier picture is the closest preceding picture, in decoding order, to the current picture among a set of pictures that are associated with the current scalability layer or any direct or indirect reference layer of the current scalability layer.
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75.发明申请公开(公告)号：US20170085917A1
公开(公告)日：2017-03-23
申请号：US15273026
申请日：2016-09-22
IPC分类号： H04N19/597 , H04N19/70 , H04N19/182 , G06T7/00 , H04N19/136 , H04N19/105 , H04N19/187 , H04N19/17
CPC分类号： H04N19/597 , H04N19/105 , H04N19/136 , H04N19/17 , H04N19/182 , H04N19/187 , H04N19/30 , H04N19/523 , H04N19/70
摘要： There are disclosed various methods, apparatuses and computer program products for video encoding. In some embodiments the method comprises reconstructing a 360-degree panoramic source picture for inter-layer prediction; deriving an inter-layer reference picture from the 360-degree panoramic source picture, wherein the deriving comprises one or both of: upsampling at least a part of the 360-degree panoramic source picture, wherein said upsampling comprises filtering samples of a border region of the 360-degree panoramic source picture using at least partly one or more sample values of an opposite side border region and/or one or more variable values associated with one or more blocks of the opposite side border region; determining a reference region that crosses a picture boundary of the 360-degree panoramic source picture, and including in the reference region one or both of the following: one or more sample values of an opposite side border region; one or more variable values associated with one or more blocks of the opposite side border region.
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公开(公告)号：US20160342596A1
公开(公告)日：2016-11-24
申请号：US14717986
申请日：2015-05-20
CPC分类号： G01C21/165 , G01S19/14 , G01S19/49 , H04N5/765 , H04N9/8205
摘要： In accordance with an example embodiment of the invention there is at least a method and apparatus to perform operations including determining, by a media recording device, a differential location sample identifying a current location in time associated with the media recording device relative to a reference location; and at least one of storing and transmitting, by the media recording device, the differential location sample in an audio-visual media file. In accordance with another example embodiment of the invention there is at least a method and apparatus to perform operations including receiving and parsing, by a parser device, a plurality of differential location samples of an audio-visual media file to identify an absolute location of a media recording device.
摘要翻译： 根据本发明的示例性实施例，至少有一种执行操作的方法和装置，包括由媒体记录装置确定标识与媒体记录装置相对于参考位置的时间中的当前位置的差分位置样本 ; 以及由媒体记录装置存储和发送在视听媒体文件中的差分位置样本中的至少一个。 根据本发明的另一示例性实施例，至少有一种执行操作的方法和装置，包括由解析器装置接收和解析视听媒体文件的多个差分位置样本，以识别视听媒体文件的绝对位置 媒体录制设备。
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77.发明申请公开(公告)号：US20160286226A1
公开(公告)日：2016-09-29
申请号：US14666713
申请日：2015-03-24
摘要： A method comprising: obtaining a video bitstream comprising a low dynamic range (LDR) video representation; obtaining one or more tone mapping operators and an indication of at least one tone mapping operator to be applied; decoding enhancement data relating to said LDR video representation; modifying the LDR video representation into a first high dynamic range (HDR) video representation using said at least one tone mapping operator determined by said indication; and combining the first HDR video representation and the enhancement data relating to said LDR video representation to provide a second HDR video representation.
摘要翻译： 一种方法，包括：获得包含低动态范围（LDR）视频表示的视频比特流; 获得一个或多个音调映射运算符和要应用的至少一个音调映射运算符的指示; 解码与所述LDR视频表示相关的增强数据; 使用由所述指示确定的所述至少一个音调映射运算器将所述LDR视频表示修改为第一高动态范围（HDR）视频表示; 以及组合所述第一HDR视频表示和与所述LDR视频表示相关的增强数据以提供第二HDR视频表示。
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78.发明申请公开(公告)号：US20160191931A1
公开(公告)日：2016-06-30
申请号：US14982558
申请日：2015-12-29
IPC分类号： H04N19/33 , H04N19/593 , H04N19/96 , H04N19/187 , H04N19/186 , H04N19/44 , H04N19/597
CPC分类号： H04N19/33 , H04N19/105 , H04N19/136 , H04N19/172 , H04N19/46 , H04N19/70
摘要： There is provided methods, apparatuses and computer program products for video coding and decoding. A first part of a first coded video representation is decoded, and information on decoding a second coded video representation is received and parsed. The coded second representation differs from the first coded video representation in chroma format, sample bit depth, color gamut and/or spatial resolution, and the information indicates if the second coded video representation may be decoded using processed decoded pictures of the first coded video representation as reference pictures. If the information indicates that the second coded video representation may be decoded using processed decoded pictures of the first coded video representation as a prediction reference, decoded picture(s) of the first part is/are processed into processed decoded picture(s) by resampling and/or sample value scaling; and decoding a second part of a second video representation using said processed decoded picture(s) as reference pictures.
摘要翻译： 提供了用于视频编码和解码的方法，装置和计算机程序产品。 解码第一编码视频表示的第一部分，并且接收并解析关于解码第二编码视频表示的信息。 编码的第二表示与色度格式的第一编码视频表示，采样位深度，色域和/或空间分辨率不同，并且该信息指示是否可以使用第一编码视频表示的处理的解码图像来解码第二编码视频表示 作为参考图片。 如果信息指示可以使用第一编码视频表示的处理的解码图像作为预测参考来解码第二编码视频表示，则通过重采样将第一部分的解码图像处理为经处理的解码图像 和/或样本值缩放; 以及使用所述处理的解码图像作为参考图像来解码第二视频表示的第二部分。
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公开(公告)号：US20150312573A1
公开(公告)日：2015-10-29
申请号：US14658870
申请日：2015-03-16
IPC分类号： H04N19/136 , H04N19/124 , H04N19/159 , H04N19/187 , H04N19/423
摘要： There are disclosed various methods, apparatuses and computer program products for video encoding/decoding. In some embodiments the method comprises signalling a long-term palette information, where the long-term palette information comprises at least information on the color values for each entry in the long-term palette; generating a palette that is used for coding a coding unit by either selecting at least one color value from a long-term palette or by separately signaling at least one color value, or performing both. Alternatively the method comprises constructing a long-term palette during an encoding process or a decoding process; and updating the long-term palette dynamically after coding a coding unit, and constructing a palette used for encoding or decoding a coding unit using information from the long-term palette.
摘要翻译： 公开了用于视频编码/解码的各种方法，装置和计算机程序产品。 在一些实施例中，该方法包括发信号通知长期调色板信息，其中长期调色板信息至少包括关于长期调色板中每个条目的颜色值的信息; 生成用于通过从长期调色板中选择至少一个颜色值或通过分别发送至少一个颜色值或执行两者的编码单元来编码的调色板。 或者，该方法包括在编码处理或解码过程期间构建长期调色板; 以及在对编码单元进行编码之后动态地更新长期调色板，以及使用来自长期调色板的信息构建用于对编码单元进行编码或解码的调色板。
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公开(公告)号：US20240259454A1
公开(公告)日：2024-08-01
申请号：US18420994
申请日：2024-01-24
发明人： Kashyap Kammachi Sreedhar , Sujeet Shyamsundar Mate , Saba Ahsan , Miska Matias Hannuksela , Igor Danilo Diego Curcio , Lauri Aleksi Ilola , Serhan Gül
摘要： An apparatus includes at least one processor; and at least one non-transitory memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to: encode a protocol data unit set into or along a stream, wherein the protocol data unit set contains at least one protocol data unit; and encode an importance field within a header extension; wherein the importance field indicates whether there is at least one dependency between the protocol data unit set and at least one other protocol data unit set.
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