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公开(公告)号：EP2681913B1
公开(公告)日：2015-11-25
申请号：EP11808966.3
申请日：2011-12-16
IPC分类号： H04N19/176 , H04N19/117 , H04N19/14 , H04N19/82 , H04N19/86
CPC分类号： H04N19/86 , H04N19/117 , H04N19/14 , H04N19/176 , H04N19/82
摘要： A first filter decision value is calculated for a block (10) of pixels (11, 13, 15, 17) in a video frame based on pixel values of pixels (11, 13, 15) in a first line (12) of pixels (11, 13, 15, 17) in the block (10). A second filter decision value is also calculated for the block (10) based on pixel values of pixels (21, 23, 25, 27) in a corresponding first line (22) of pixels (21, 23, 25, 27) in a neighboring block (20) in the video frame. The first filter decision value is used to determine how many pixels in a line (12) of pixels (11, 13, 15, 17) in the block (10) to filter relative to a block boundary (1) between the block (10) and the neighboring block (20). The second filter decision value is used to determine how many pixels in a corresponding line (22) of pixels (21, 23, 25, 27) in the neighboring block to filter relative to the block boundary (1).
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公开(公告)号：EP2684355A1
公开(公告)日：2014-01-15
申请号：EP11709672.7
申请日：2011-03-10
摘要： The solution according to embodiments of the present invention is to reconstruct image blocks where only the frequency coefficient that is most sensitive to changes of an average value of the residual image block, typically the lowest frequency coefficient, is present with a flat residual image. The other image blocks are reconstructed by applying an inverse spatial 2D transform. Hence, the other image blocks comprise image blocks with multiple coefficients and image blocks with a single coefficient and wherein the single coefficient is not the coefficient determining (703) that is most sensitive to changes of an average value of the residual image block.
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公开(公告)号：EP2681913A1
公开(公告)日：2014-01-08
申请号：EP11808966.3
申请日：2011-12-16
IPC分类号： H04N7/26
CPC分类号： H04N19/86 , H04N19/117 , H04N19/14 , H04N19/176 , H04N19/82
摘要： A first filter decision value is calculated for a block (10) of pixels (11, 13, 15, 17) in a video frame based on pixel values of pixels (11, 13, 15) in a first line (12) of pixels (11, 13, 15, 17) in the block (10). A second filter decision value is also calculated for the block (10) based on pixel values of pixels (21, 23, 25, 27) in a corresponding first line (22) of pixels (21, 23, 25, 27) in a neighboring block (20) in the video frame. The first filter decision value is used to determine how many pixels in a line (12) of pixels (11, 13, 15, 17) in the block (10) to filter relative to a block boundary (1) between the block (10) and the neighboring block (20). The second filter decision value is used to determine how many pixels in a corresponding line (22) of pixels (21, 23, 25, 27) in the neighboring block to filter relative to the block boundary (1).
摘要翻译： 基于像素的第一行（12）中的像素（11,13,15）的像素值为视频帧中的像素（11,13,15,17）的块（10）计算第一滤波器判决值 （11），（13,13），（15），（17）。 还基于像素（21,23,25,27）中的像素（21,23,25,27）的对应第一行（22）中的像素（21,23,25,27）的像素值来计算块（10）的第二滤波器判决值， 相邻块（20）在视频帧中。 第一滤波器判决值用于确定块（10）中的像素（11,13,15,17）的行（12）中的多少像素相对于块（10）之间的块边界（1）进行滤波 ）和相邻块（20）。 第二滤波器判定值用于确定相邻块中的像素（21,23,25,27）的对应线（22）中的多少像素相对于块边界（1）进行滤波。
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4.发明公开MANAGING PREDICTED MOTION VECTOR CANDIDATES 审中-公开HANDHABUNG VON VORHERGESAGTEN BEWEGUNGSVEKTORKANDIDATEN
公开(公告)号：EP2532160A1
公开(公告)日：2012-12-12
申请号：EP10800749.3
申请日：2010-12-23
IPC分类号： H04N7/26
CPC分类号： H04N19/105 , H04N19/137 , H04N19/176 , H04N19/52
摘要： There is provided a method of managing PMV candidates. The method comprises selecting a set of PMV candidates as a subset of the previously coded motion vectors. The method further comprises assigning a code value to each PMV candidate in the set of PMV candidates. The code values vary in length and are assigned to the PMV candidates in order of expected usage such that the PMV candidate having the highest expected usage has one of the shortest code values.
摘要翻译： 提供了一种管理PMV候选人的方法。 该方法包括选择一组PMV候选作为先前编码的运动矢量的子集。 该方法还包括向PMV候选集合中的每个PMV候选者分配代码值。 代码值的长度不同，按照预期的使用顺序分配给PMV候选者，使得具有最高预期用途的PMV候选具有最短代码值之一。
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公开(公告)号：EP2684355B1
公开(公告)日：2014-11-12
申请号：EP11709672.7
申请日：2011-03-10
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公开(公告)号：EP2532161A1
公开(公告)日：2012-12-12
申请号：EP10845363.0
申请日：2010-12-29
CPC分类号： H04N19/86 , H04N19/117 , H04N19/14 , H04N19/176 , H04N19/182 , H04N19/82
摘要： A block-specific filter decision value is calculated for a pixel block (10) in a video frame. If the block-specific filter decision value is below a block-specific threshold, each row or column (12) in the block (10) is individually processed in order to select between a strong and a weak de-blocking filter. A respective line-specific filter decision value is thereby calculated for each row or column (12) in the block (10) and compared to a line-specific threshold. If the line-specific filter decision value calculated for a row or column (12) is below the line-specific threshold a strong de-blocking filter is selected for the row or column (12), otherwise a weak de-blocking filter is instead selected to combat any blocking artifacts.
摘要翻译： 针对视频帧中的像素块（10）计算块特定的滤波器决策值。 如果块特定的滤波器判决值低于特定于块的阈值，则单独处理块（10）中的每一行或列（12）以便在强和弱的去块滤波器之间进行选择。 由此为块（10）中的每个行或列（12）计算相应的行特定的过滤器决策值，并与行特定的阈值进行比较。 如果针对行或列（12）计算的线特定滤波器决策值低于线特定阈值，则为行或列（12）选择强解块滤波器，否则替代弱解块滤波器 被选中以对付任何阻塞伪影。
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公开(公告)号：EP2232874A1
公开(公告)日：2010-09-29
申请号：EP08869247.0
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： An adaptive filter having multiple filter parameters is determined by defining at least one filter parameter as having a first level of adaptivity and defining at least one other filter parameter as having a second, different level of adaptivity. The parameter values for the at least one filter parameter having the first level of adaptivity are determined among a first set of allowable filter parameter values. The parameter values for the at least one filter parameter having the second level of adaptivity are correspondingly determined among a second, different set of allowable filter parameter values. The different levels of adaptivity in the filter parameters of the adaptive filter are achieved as the second set comprises 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.
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公开(公告)号：EP2834980A2
公开(公告)日：2015-02-11
申请号：EP13762601.6
申请日：2013-03-15
IPC分类号： H04N7/26
CPC分类号： H04N19/117 , H04N19/136 , H04N19/146 , H04N19/172 , H04N19/176 , H04N19/42 , H04N19/463 , H04N19/70 , H04N19/82
摘要： A method,a filtering control device (150), a computer program and a computer program product for processing a first picture in a sample adaptive filtering procedure are disclosed. The first picture is reconstructed from video data. The filtering control device (150) obtains (201) an offset magnitude from the video data. The offset magnitude indicates a magnitude of a sample adaptive offset to be applied in the sample adaptive filtering procedure. The filtering control device (150) obtains (204) an offset sign from the video data. The offset sign indicates a sign of the sample adaptive offset. The filtering control device (150) determines (205) the sample adaptive offset based on the offset magnitude and the offset sign. Moreover, the filtering control device (150) processes (207), in the sample adaptive filtering procedure, at least a portion of the first picture while applying the sample adaptive offset.
摘要翻译： 公开了一种用于在样本自适应滤波过程中处理第一图像的方法，滤波控制装置，计算机程序和计算机程序产品。 从视频数据重建第一张照片。 滤波控制装置从视频数据获得偏移幅度。 偏移幅度表示在样本自适应滤波过程中应用的采样自适应偏移的幅度。 滤波控制装置从视频数据中获得偏移符号。 偏移符号表示样本自适应偏移的符号。 滤波控制装置基于偏移幅度和偏移符号来确定采样自适应偏移。 此外，滤波控制装置在采样自适应滤波过程中处理第一图像的至少一部分，同时应用采样自适应偏移。
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9.发明公开SELECTING PREDICTED MOTION VECTOR CANDIDATES 审中-公开AUSWAHL VON VORHERGESAGTEN BEWEGUNGSVEKTORKANDIDATEN
公开(公告)号：EP2532159A1
公开(公告)日：2012-12-12
申请号：EP10796418.1
申请日：2010-12-23
IPC分类号： H04N7/26
CPC分类号： H04N19/105 , H04N19/137 , H04N19/176 , H04N19/52
摘要： There is provided a method of selecting PMV candidates, wherein each PMV candidate corresponds to a motion vector used for coding of a previous block, said previous block having a distance from a current block. The method comprises identifying allowed distance values of distances between the current block and the previous block. The method further comprises selecting a set of PMV candidates as a subset of the set of previously coded motion vectors that were used for previous blocks having an allowed distance from the current block.
摘要翻译： 提供了一种管理PMV候选人的方法。 该方法包括选择一组PMV候选作为先前编码的运动矢量的子集。 该方法还包括向PMV候选集合中的每个PMV候选者分配代码值。 代码值的长度不同，按照预期的使用顺序分配给PMV候选者，使得具有最高预期用途的PMV候选具有最短代码值之一。
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公开(公告)号：EP2232874B1
公开(公告)日：2012-12-05
申请号：EP08869247.0
申请日：2008-10-08
CPC分类号： H04N19/82 , H04N19/117 , H04N19/136 , H04N19/176 , H04N19/463 , H04N19/61 , H04N19/70
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