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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：US08576906B2
公开(公告)日：2013-11-05
申请号：US12811595
申请日：2008-10-08
CPC分类号： H04N19/82 , H04N19/117 , H04N19/136 , H04N19/176 , H04N19/463 , H04N19/61 , H04N19/70
摘要： A method and device for determining an adaptive filter having multiple filter parameters, wherein a first filter parameter has a first level of adaptivity and a second filter parameter has a second, different level of adaptivity. Parameter values for the first filter parameter are determined among a first set of allowable filter parameter values. Parameter values for the second filter parameter are correspondingly determined among a second, different set of allowable filter parameter values. The different levels of adaptivity in the filter parameters are achieved because the second set includes more allowable filter parameter values than the first set. The adaptive filter is advantageously used in filtering in intra- or inter-predication during video encoding and decoding.
摘要翻译： 一种用于确定具有多个滤波器参数的自适应滤波器的方法和装置，其中第一滤波器参数具有第一水平的自适应性，而第二滤波器参数具有第二不同的自适应水平。 在第一组允许的滤波器参数值中确定第一滤波器参数的参数值。 第二过滤器参数的参数值在第二个不同的允许过滤器参数值集合中相应地确定。 由于第二组包含比第一组更多的可允许的滤波器参数值，所以实现了滤波器参数中不同的自适应水平。 自适应滤波器有利地用于在视频编码和解码期间的帧内或帧间预测中的滤波。
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公开(公告)号：US20110007801A1
公开(公告)日：2011-01-13
申请号：US12808958
申请日：2008-07-16
IPC分类号： H04N7/32
CPC分类号： H04N19/593 , H04N19/103 , H04N19/117 , H04N19/147 , H04N19/17 , H04N19/176 , H04N19/194 , H04N19/523 , H04N19/82
摘要： Method of encoding an input video frame into an encoded video frame. The method comprises the steps of disassembling the input video frame into a plurality of blocks of pixels; and for each block being a current block, generating a corresponding predicted block from already reconstructed pixels, generating a residual block by subtracting the predicted block from the current block, and generating a reconstructed block from the residual block and the predicted block, generating the encoded video frame from the residual block, 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. A corresponding method for decoding the encoded video frame into a decoded video frame also uses a step of 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.
摘要翻译： 将输入视频帧编码成编码视频帧的方法。 该方法包括将输入视频帧分解为多个像素块的步骤; 并且对于每个块是当前块，从已经重建的像素生成对应的预测块，通过从当前块中减去预测块产生残差块，并从残差块和预测块生成重构块， 视频帧，在所述预测块的区域中创建重建像素的局部结构，并将所述预测块与所述局部结构对准以产生对准的预测块，其中所述对准预测块用于生成 剩余块并生成相应的重建块。 用于将编码视频帧解码为解码视频帧的相应方法还使用在预测块的区域中创建重建像素的局部结构并将预测块与局部结构对准以产生对准预测块的步骤。
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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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公开(公告)号：US08687711B2
公开(公告)日：2014-04-01
申请号：US12811996
申请日：2009-01-08
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：US20100309977A1
公开(公告)日：2010-12-09
申请号：US12808992
申请日：2008-07-31
IPC分类号： H04N7/32
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：US20100284458A1
公开(公告)日：2010-11-11
申请号：US12811595
申请日：2008-10-08
IPC分类号： H04N7/26
CPC分类号： H04N19/82 , H04N19/117 , H04N19/136 , H04N19/176 , H04N19/463 , H04N19/61 , H04N19/70
摘要： A method and device for determining an adaptive filter having multiple filter parameters, wherein a first filter parameter has a first level of adaptivity and a second filter parameter has a second, different level of adaptivity. Parameter values for the first filter parameter are determined among a first set of allowable filter parameter values. Parameter values for the second filter parameter are correspondingly determined among a second, different set of allowable filter parameter values. The different levels of adaptivity in the filter parameters are achieved because the second set includes more allowable filter parameter values than the first set. The adaptive filter is advantageously used in filtering in intra- or inter-predication during video encoding and decoding.
摘要翻译： 一种用于确定具有多个滤波器参数的自适应滤波器的方法和装置，其中第一滤波器参数具有第一水平的自适应性，而第二滤波器参数具有第二不同的自适应水平。 在第一组允许的滤波器参数值中确定第一滤波器参数的参数值。 第二过滤器参数的参数值在第二个不同的允许过滤器参数值集合中相应地确定。 由于第二组包含比第一组更多的可允许的滤波器参数值，所以实现了滤波器参数中不同的自适应水平。 自适应滤波器有利地用于在视频编码和解码期间的帧内或帧间预测中的滤波。
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9.发明申请Systems and Methods for using DC Change Parameters in Video Coding and Decoding 审中-公开在视频编码和解码中使用DC变化参数的系统和方法公开(公告)号：US20100278269A1
公开(公告)日：2010-11-04
申请号：US12811971
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： The present application discloses systems and methods for using DC change parameters in video coding. In one embodiment, the method includes the steps of: (a) obtaining a DC change parameter; (b) decoding encoded video data to obtain reconstructed pixel values; and (c) using the reconstructed pixel values, a filter, and the DC change parameter to obtain filtered reconstructed pixel values with a DC change.
摘要翻译： 本申请公开了在视频编码中使用DC变化参数的系统和方法。 在一个实施例中，该方法包括以下步骤：（a）获得DC变化参数; （b）解码编码的视频数据以获得重建的像素值; 以及（c）使用重建的像素值，滤波器和DC变化参数来获得具有DC变化的经滤波的重构像素值。
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10.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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