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公开(公告)号：US20090089535A1
公开(公告)日：2009-04-02
申请号：US12160158
申请日：2007-01-04
申请人： Thorsten Lohmar , Magnus Westerlund , Per Frojdh
发明人： Thorsten Lohmar , Magnus Westerlund , Per Frojdh
CPC分类号： H04N21/64315 , H04L1/004 , H04L1/0084 , H04L1/1819 , H04L12/1877 , H04L65/607 , H04L67/06 , H04N19/61 , H04N19/66 , H04N19/67 , H04N21/2381 , H04N21/254 , H04N21/26216 , H04N21/6131 , H04N21/6181 , H04N21/6375 , H04N21/6377 , H04N21/6405 , H04N21/658 , H04N21/85406
摘要： The invention teaches a media container file comprising media data organized into media source blocks. The media source blocks are partitioned into source symbols that can be processed by a forward error correction (FEC) algorithm for generation of FEC redundancy data. Information of this source block partitioning is included in the file in addition to the source blocks. The container file also comprises meta data providing an association between the media source blocks and the partitioning information. The container file can be employed by a media server in a media session for compiling media data packets to be transmitted to requesting clients without the need of extensive data processing before calculating FEC data.
摘要翻译： 本发明教导了一种媒体容器文件，其包括组织成媒体源块的媒体数据。 媒体源块被划分为可以通过用于生成FEC冗余数据的前向纠错（FEC）算法来处理的源符号。 除了源块之外，该源块分区的信息也包含在文件中。 容器文件还包括提供媒体源块和分区信息之间的关联的元数据。 容器文件可以由媒体会话中的媒体服务器使用，用于在计算FEC数据之前不需要广泛的数据处理来编译要发送到请求客户端的媒体数据分组。
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公开(公告)号：US07979886B2
公开(公告)日：2011-07-12
申请号：US10963771
申请日：2004-10-14
IPC分类号： H04N7/16
CPC分类号： H04L29/06027 , H04L65/607
摘要： In a method for transmitting a multimedia presentation comprising a number of media objects: the media objects are organized in a multimedia container or container format; identifiers referring to the media objects are organized in the same container; and an identifiable file coordinating the media objects is also provided in the container.
摘要翻译： 在用于发送包括多个媒体对象的多媒体呈现的方法中：媒体对象以多媒体容器或容器格式组织; 引用媒体对象的标识符被组织在同一个容器中; 并且还在容器中提供协调媒体对象的可识别文件。
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公开(公告)号：US20050086582A1
公开(公告)日：2005-04-21
申请号：US10963771
申请日：2004-10-14
CPC分类号： H04L29/06027 , H04L65/607
摘要： In a method for transmitting a multimedia presentation comprising a number of media objects: the media objects are organized in a multimedia container or container format; identifiers referring to the media objects are organized in the same container; and an identifiable file coordinating the media objects is also provided in the container.
摘要翻译： 在用于发送包括多个媒体对象的多媒体呈现的方法中：媒体对象以多媒体容器或容器格式组织; 引用媒体对象的标识符被组织在同一个容器中; 并且还在容器中提供协调媒体对象的可识别文件。
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公开(公告)号：US08555329B2
公开(公告)日：2013-10-08
申请号：US13165566
申请日：2011-06-21
IPC分类号： H04N7/16
CPC分类号： H04L29/06027 , H04L65/607
摘要： In a method for transmitting a multimedia presentation comprising a number of media objects: the media objects are organized in a multimedia container or container format; identifiers referring to the media objects are organized in the same container; and an identifiable file coordinating the media objects is also provided in the container.
摘要翻译： 在用于发送包括多个媒体对象的多媒体呈现的方法中：媒体对象以多媒体容器或容器格式组织; 引用媒体对象的标识符被组织在同一个容器中; 并且还在容器中提供协调媒体对象的可识别文件。
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5.发明申请公开(公告)号：US20090232469A1
公开(公告)日：2009-09-17
申请号：US12299457
申请日：2007-04-27
申请人： Clinton Priddle , Per Frojdh
发明人： Clinton Priddle , Per Frojdh
CPC分类号： H04N21/2381 , H04N21/23412 , H04N21/234318 , H04N21/4363 , H04N21/4381 , H04N21/44012 , H04N21/8455
摘要： The present invention relates to a new type of random access point adapted to be included in a media representation comprising a plurality of data objects. The random access point is characterized by a reference to a data element in another data object of said plurality of data objects, wherein said referenced data element at least partly describes how to reconstruct media from said media representation. The invention further relates to a method and apparatus of reconstructing media from a media representation. The method comprises receiving a data object comprising at least one reference to a data element in another data object of the media representation; and re-constructing the media by use of information associated with said referenced data element(s).
摘要翻译： 本发明涉及适于被包括在包括多个数据对象的媒体表示中的新型随机接入点。 随机接入点的特征在于对所述多个数据对象的另一个数据对象中的数据元素的引用，其中所述参考数据元素至少部分地描述如何从所述媒体表示重构媒体。 本发明还涉及从媒体表示重建媒体的方法和装置。 该方法包括：接收包括对媒体表示的另一数据对象中的数据元素的至少一个引用的数据对象; 以及通过使用与所述被引用的数据元素相关联的信息重新构建媒体。
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公开(公告)号：US08670488B2
公开(公告)日：2014-03-11
申请号：US12808992
申请日：2008-07-31
CPC分类号： H04N19/157 , H04N19/11 , H04N19/14 , H04N19/146 , H04N19/176 , H04N19/61
摘要： In video encoding and decoding predictions may be generated by intra-frame prediction. Intra-frame prediction uses reconstructed pixels in a reconstructed frame. Intra-frame prediction is performed by extending the reconstructed pixels into a predicted block using intra-frame prediction modes, each intra-frame prediction mode indicating a direction of the extension. In order to reduce the number of possible intra-frame prediction modes, a subset is selected from a predetermined set of possible intra-frame prediction modes. A subset of intra-frame prediction modes can be created by forming preselection sets of intra-frame prediction modes on the basis of similarity of their associated predicted blocks and selecting a representative intra-frame prediction mode from each preselection set.
摘要翻译： 在视频编码和解码中，可以通过帧内预测来生成预测。 帧内预测使用重构帧中的重构像素。 通过使用帧内预测模式将重构像素扩展为预测块来进行帧内预测，每个帧内预测模式指示扩展方向。 为了减少可能的帧内预测模式的数量，从可能的帧内预测模式的预定集合中选择一个子集。 可以通过基于其相关联的预测块的相似度并从每个预选集中选择代表性帧内预测模式来形成帧内预测模式的预选集来创建帧内预测模式的子集。
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公开(公告)号：US20100284461A1
公开(公告)日：2010-11-11
申请号：US12811996
申请日：2009-01-08
IPC分类号： H04N7/32
CPC分类号： H04N19/82 , H04N19/117 , H04N19/136 , H04N19/176 , H04N19/463 , H04N19/61 , H04N19/70
摘要： A method of encoding a plurality of adaptive filter coefficients (104, 107, 112) into a bitstream (110). The method comprises the steps of entropy encoding (109) the adaptive filter coefficients (104, 107, 112) into the bitstream (110), whereby a prediction (202) for an instance (204) of the adaptive filter coefficients is determined (201) based on at least one of the remaining adaptive filter coefficients (206), a prediction error (205) is determined (203) based on the difference between the instance (204) of the adaptive filter coefficients and the prediction (202), and wherein the step of entropy encoding (109) the plurality of adaptive filter coefficients (104, 107, 112) comprises entropy encoding (109) the prediction error (205) for the instance (204) of the adaptive filter coefficients and entropy encoding (109) the remaining adaptive filter coefficients (206). Further is provided a corresponding method of decoding a bitstream (110) of encoded adaptive filter coefficients into decoded adaptive filter coefficients (116, 118, 120, 123).
摘要翻译： 一种将多个自适应滤波器系数（104,107,112）编码为比特流（110）的方法。 该方法包括以下步骤：将自适应滤波器系数（104,107,112）熵编码（109）到比特流（110）中，由此确定自适应滤波器系数的实例（204）的预测（202）（201 ）基于所述剩余自适应滤波器系数（206）中的至少一个，基于所述自适应滤波器系数的实例（204）与所述预测（202）之间的差异来确定（203）预测误差（205），以及 其中所述多个自适应滤波器系数（104,107,112）的熵编码（109）的步骤包括对所述自适应滤波器系数和熵编码（109）的实例（204）进行熵编码（109）所述预测误差（205） ）剩余的自适应滤波器系数（206）。 还提供了将经编码的自适应滤波器系数的比特流（110）解码为解码的自适应滤波器系数（116,118,120,123）的相应方法。
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公开(公告)号：US08780172B2
公开(公告)日：2014-07-15
申请号：US13146380
申请日：2009-05-07
申请人： Ivana Girdzijauskas , Per Frojdh , Clinton Priddle
发明人： Ivana Girdzijauskas , Per Frojdh , Clinton Priddle
CPC分类号： H04N13/128 , H04N13/111 , H04N13/243 , H04N2213/003
摘要： Co-processing of a video frame (32) and its associated depth map (34) suitable for free viewpoint television involves detecting respective edges (70, 71, 80, 81) in the video frame (32) and the depth map (34). The edges (70, 71, 80, 81) are aligned and used to identify any pixels (90-92) in the depth map (34) or the video frame (32) having incorrect depth values or color values based on the positions of the pixels in the depth map (34)or the video frame (32) relative an edge (80) in 5 the depth map (34) and a corresponding, aligned edge (70) in the video frame (32). The depth values or color values of the identified pixels (90-92) can then be corrected in order to improve the accuracy of the depth map (32) or video frame (34).
摘要翻译： 适用于自由视点电视的视频帧（32）及其相关联的深度图（34）的协处理涉及检测视频帧（32）和深度图（34）中的相应边缘（70,71,80,81） 。 边缘（70,71,80,81）对准并用于识别深度图（34）中的任何像素（90-92）或具有不正确的深度值或颜色值的视频帧（32），基于 深度图（34）中的像素或视频帧（32）相对于深度图（34）中的边缘（80）和视频帧（32）中的对应的对准边缘（70）。 然后可以校正所识别的像素（90-92）的深度值或颜色值，以便提高深度图（32）或视频帧（34）的精度。
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公开(公告)号：US20090185619A1
公开(公告)日：2009-07-23
申请号：US12160142
申请日：2006-11-29
申请人： Annise Taleb , Per Frojdh
发明人： Annise Taleb , Per Frojdh
IPC分类号： H04N7/24
CPC分类号： H04N21/4341 , H04N21/2335 , H04N21/234327 , H04N21/23439 , H04N21/2368 , H04N21/2385 , H04N21/2402 , H04N21/2662 , H04N21/85406
摘要： The invention involves collective management of video and audio content in a content provider. The video and audio content is available in multiple potential versions, e.g. in the form of scalable media or media pre-encoded to fixed bandwidth levels. The video and audio data is associated with bandwidth share information enabling estimation of a respective apportionment of a total available bandwidth to the video and audio content. The provider uses this share information and information of the total assignable bandwidth level for providing a respective video version and audio version from the multiple potential versions. This allows for increased user-quality when rendering the video and audio data as optimal video and audio version can be dynamically provided during the media session.
摘要翻译： 本发明涉及对内容提供商中的视频和音频内容的集体管理。 视频和音频内容可用于多种潜在版本，例如 以可扩展媒体或媒体的形式预编码到固定带宽水平。 视频和音频数据与带宽共享信息相关联，使得能够估计视频和音频内容的总可用带宽的相应分配。 提供商使用该共享信息和总可分配带宽级别的信息来从多个潜在版本提供相应的视频版本和音频版本。 这可以在渲染视频和音频数据时提高用户质量，因为在媒体会话期间可以动态地提供最佳的视频和音频版本。
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公开(公告)号：US09049457B2
公开(公告)日：2015-06-02
申请号：US12808958
申请日：2008-07-16
IPC分类号： H04N19/593 , H04N19/176 , H04N19/147 , H04N19/103 , H04N19/117 , H04N19/17 , H04N19/194 , H04N19/82 , H04N19/523 , H04N19/61
CPC分类号： H04N19/593 , H04N19/103 , H04N19/117 , H04N19/147 , H04N19/17 , H04N19/176 , H04N19/194 , H04N19/523 , H04N19/82
摘要： A method of encoding an input video frame into an encoded video frame comprises the steps of disassembling the input video frame into a plurality of blocks of pixels. For each block being a current block, the method further comprises generating a corresponding predicted block from already reconstructed pixels, generating a residual block by subtracting the predicted block from the current block, generating a reconstructed block from the residual block and the predicted block, and generating the encoded video frame from the residual block The method further entails creating a local structure of reconstructed pixels in a region of the predicted block and aligning the predicted block with the local structure to produce an aligned predicted block, wherein the aligned predicted block is used in the steps of generating the residual block and generating the corresponding reconstructed block.
摘要翻译： 将输入视频帧编码为编码视频帧的方法包括将输入视频帧分解为多个像素块的步骤。 对于作为当前块的每个块，该方法还包括从已经重建的像素生成相应的预测块，通过从当前块中减去预测块产生残差块，从残差块和预测块生成重建块，以及 从残余块生成编码的视频帧该方法还需要在预测块的区域中创建重构像素的局部结构，并将预测块与局部结构对准以产生对准的预测块，其中使用对齐预测块 在产生残余块并产生相应的重构块的步骤中。
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