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公开(公告)号：US07551232B2
公开(公告)日：2009-06-23
申请号：US11273304
申请日：2005-11-14
申请人： Lowell L. Winger , Pavel Novotny , Yunwei Jia
发明人： Lowell L. Winger , Pavel Novotny , Yunwei Jia
摘要： A method for filtering digital video is disclosed. The method generally includes the steps of (A) checking a plurality of original blocks in an original field for a plurality of artifacts, wherein detection of the artifacts is based on an adjustable threshold, (B) first filtering each of the original blocks having at least one of the artifacts to remove the at least one artifact and (C) second filtering each of the original blocks lacking at least one of the artifacts to remove noise, wherein the second filtering is (i) motion compensated and (ii) adaptive to a respective noise level in each of the original blocks.
摘要翻译： 公开了一种用于过滤数字视频的方法。 该方法通常包括以下步骤：（A）检查多个伪像的原始字段中的多个原始块，其中伪像的检测基于可调节的阈值，（B）首先过滤具有 至少一个伪影去除所述至少一个伪影，并且（C）对缺少至少一个伪影的每个原始块进行第二次滤波以去除噪声，其中第二滤波是（i）运动补偿和（ii）自适应 每个原始块中的相应噪声水平。
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公开(公告)号：US08023041B2
公开(公告)日：2011-09-20
申请号：US11343119
申请日：2006-01-30
申请人： Yunwei Jia , Lowell L. Winger
发明人： Yunwei Jia , Lowell L. Winger
CPC分类号： H04N5/253 , H04N7/0115 , H04N7/012 , H04N19/14 , H04N19/16 , H04N19/176 , H04N19/503
摘要： A method for detecting moving interlaced text in a video sequence originating through telecine is disclosed. The method generally includes the steps of (A) checking a motion condition of a current block in a current field in the video sequence for motion both (i) from a previous field in the video sequence to the current field and (ii) from the current field to a next field in the video sequence, (B) checking an artifact condition of the current block for a plurality of symmetric interlaced artifacts in both (i) a forward temporal direction and (ii) a backward temporal direction and (C) asserting a block motion indicator for the current block if all of (i) the motion condition is true and (ii) the artifact condition is true.
摘要翻译： 公开了一种用于检测通过电视电影发起的视频序列中的移动隔行扫描文本的方法。 该方法通常包括以下步骤：（A）检查视频序列中当前字段中的当前块的运动条件，以便（i）从视频序列中的先前场到当前场，以及（ii）从 （B）在（i）前向时间方向和（ii）后向时间方向上检查多个对称隔行伪影的当前块的伪像条件，（C） 如果（i）运动条件为真，并且（ii）伪影条件为真，则为当前块确定块运动指示符。
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公开(公告)号：US07612828B2
公开(公告)日：2009-11-03
申请号：US11355027
申请日：2006-02-15
申请人： Lowell L. Winger , Yunwei Jia
发明人： Lowell L. Winger , Yunwei Jia
摘要： A method for detecting progressive material in a video sequence is disclosed. The method generally includes the steps of (A) calculating a plurality of block statistics for each of a plurality of blocks in a current field of the video sequence, (B) calculating a plurality of field statistics by summing the block statistics over all of the blocks in the current field, (C) calculating a noise level for the current field based on a subset of the block statistics from each of the blocks and (D) generating a mode flag for the current field based on both (i) the field statistics and (ii) the noise level, wherein the mode flag identifies if the current field is part of a 2:2 pull-down pattern.
摘要翻译： 公开了一种用于检测视频序列中的渐进材料的方法。 该方法通常包括以下步骤：（A）为视频序列的当前字段中的多个块中的每一个块计算多个块统计，（B）通过将所有块统计信息 （C）基于来自每个块的块统计的子集计算当前场的噪声水平，以及（D）基于（i）场来生成当前场的模式标志 统计和（ii）噪声水平，其中模式标志识别当前场是否是2：2下拉模式的一部分。
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公开(公告)号：US08842929B2
公开(公告)日：2014-09-23
申请号：US13401983
申请日：2012-02-22
CPC分类号： H04N19/196 , H04N19/117 , H04N19/124 , H04N19/14 , H04N19/18 , H04N19/80 , H04N19/86
摘要： A method of deblocking an input signal is disclosed. The method generally includes the steps of (A) calculating a plurality of transform coefficients corresponding to each of a plurality of blocks in the input signal at baseband, (B) calculating a plurality of quantization parameters based on the transform coefficients, at least one of the quantization parameters corresponding to each respective one of the blocks and (C) generating an output signal by deblocking the input signal based on the quantization parameters.
摘要翻译： 公开了一种去锁定输入信号的方法。 该方法通常包括以下步骤：（A）计算与基带处的输入信号中的多个块中的每一个相对应的多个变换系数，（B）基于变换系数计算多个量化参数，至少一个 所述量化参数对应于所述块中的每一个块，（C）通过基于所述量化参数去除所述输入信号来产生输出信号。
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25.发明授权公开(公告)号：US08204122B2
公开(公告)日：2012-06-19
申请号：US11781440
申请日：2007-07-23
IPC分类号： H04N7/26
CPC分类号： H04N19/577 , H04N19/40 , H04N19/44 , H04N19/86
摘要： A method of compressed picture reconstruction using a plurality of post-processed reference pictures. The method generally includes the steps of (A) generating a first of a plurality of reconstructed pictures by decoding a first of a plurality of compressed pictures using at least one of a plurality of non-post-processed reference pictures buffered in a reference memory, wherein the compressed pictures are received in an input bitstream, (B) generating a first of a plurality of processed pictures by artifact processing the first reconstructed picture to remove artifacts, (C) buffering in the reference memory both (i) the first reconstructed picture as one of the non-post-processed reference pictures and (ii) the first processed picture as one of the post-processed reference pictures and (D) generating a second of the reconstructed pictures by decoding a second of the compressed pictures using at least one of the post-processed reference pictures buffered in the reference memory.
摘要翻译： 使用多个后处理参考图片的压缩图像重建方法。 该方法通常包括以下步骤：（A）通过使用缓冲在参考存储器中的多个非后处理参考图像中的至少一个来解码多个压缩图像中的第一个图像来生成多个重构图像中的第一图像， 其中所述压缩图像在输入比特流中被接收，（B）通过对所述第一重建图像进行伪像处理来生成多个经处理的图像中的第一图像以去除伪影，（C）在所述参考存储器中缓存（i）所述第一重构图像 作为非后处理参考图像之一和（ii）作为后处理参考图像之一的第一处理图像，以及（D）通过使用至少解码第二压缩图像来生成第二重构图像 在参考存储器中缓冲的后处理参考图像之一。
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公开(公告)号：US08170107B2
公开(公告)日：2012-05-01
申请号：US12043242
申请日：2008-03-06
申请人： Lowell L. Winger
发明人： Lowell L. Winger
IPC分类号： H04N11/02
CPC分类号： H04N19/523 , H04N19/117 , H04N19/433 , H04N19/44 , H04N19/61 , H04N19/82
摘要： A method of decoding a video bitstream is disclosed. The method generally includes the steps of (A) buffering the video bitstream in a main memory, the video bitstream comprising a first residual block based on a first motion compensated block, the first motion compensated block having been generated by a subpixel motion compensation using an N-tap interpolation on a plurality of first reference samples, (B) copying a first subset of the first reference samples from the main memory to an internal memory, (C) generating a first decode block using the subpixel motion compensation with an M-tap interpolation on the first subset in the internal memory, and (D) reconstructing a first original block by adding the first residual block to the first decode block.
摘要翻译： 公开了解码视频位流的方法。 该方法通常包括以下步骤：（A）在主存储器中缓冲视频比特流，视频比特流包括基于第一运动补偿块的第一残差块，第一运动补偿块已经通过子像素运动补偿使用 在多个第一参考样本上进行N抽头插值，（B）将第一参考样本的第一子集从主存储器复制到内部存储器;（C）使用具有M-M的子像素运动补偿生成第一解码块， 在内部存储器中的第一子集上进行抽头插值，以及（D）通过将第一残差块加到第一解码块来重建第一原始块。
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公开(公告)号：US20120076208A1
公开(公告)日：2012-03-29
申请号：US13311972
申请日：2011-12-06
申请人： Lowell L. Winger
发明人： Lowell L. Winger
CPC分类号： H04N19/59 , H04N19/102 , H04N19/186 , H04N19/426 , H04N19/573 , H04N19/61
摘要： A method for reducing memory utilization in a digital video codec. The method generally includes the steps of (A) generating a second reference picture by downsampling a first reference picture using a pattern, wherein the pattern (i) comprises a two-dimensional grid and (ii) is unachievable by performing a vertical downsampling and separately performing a horizontal downsampling, (B) generating a third reference picture by upsampling the second reference picture and (C) processing an image in a video signal using the third reference picture.
摘要翻译： 一种降低数字视频编解码器内存利用率的方法。 该方法通常包括以下步骤：（A）通过使用图案对第一参考图像进行下采样来生成第二参考图像，其中，图案（i）包括二维网格，并且（ii）通过执行垂直下采样而不可实现 执行水平下采样，（B）通过对第二参考图像进行上采样来产生第三参考图像，以及（C）使用第三参考图像处理视频信号中的图像。
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公开(公告)号：US08045062B2
公开(公告)日：2011-10-25
申请号：US12861950
申请日：2010-08-24
申请人： Lowell L. Winger
发明人： Lowell L. Winger
IPC分类号： H04N9/64
CPC分类号： H04N9/643 , G09G5/02 , G09G2320/0242 , H04N1/62 , H04N1/628
摘要： A method for color tone correction is disclosed. The method generally includes the steps of (A) generating a plurality of first intermediate components by scaling a plurality of first color components towards a first ideal color, wherein the first color components (i) are for a first plurality of pixels in an input video signal and (ii) fall inside a first region of a color space, (B) generating a plurality of first corrected components by adjusting the first intermediate components such that a first mapping of the first color components to the first corrected components is both (i) continuous in the color space and (ii) non-overlapping in the color space and (C) generating an output video signal by combining the first corrected components with a plurality of unaltered color components, wherein the unaltered color components (i) are for a second plurality of the pixels and (ii) fall outside the first region.
摘要翻译： 公开了一种色调校正方法。 该方法通常包括以下步骤：（A）通过将多个第一颜色分量朝向第一理想颜色缩放来生成多个第一中间分量，其中第一颜色分量（i）用于输入视频中的第一多个像素 信号和（ii）落在颜色空间的第一区域内，（B）通过调整第一中间分量来生成多个第一校正分量，使得第一颜色分量与第一校正分量的第一映射都为（i ）和（ii）在所述颜色空间中不重叠，以及（C）通过将所述第一校正分量与多个未改变的颜色分量组合来产生输出视频信号，其中所述未改变的颜色分量（i）用于 第二多个像素和（ii）落在第一区域之外。
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公开(公告)号：US07944968B2
公开(公告)日：2011-05-17
申请号：US11104069
申请日：2005-04-12
申请人： Lowell L. Winger
发明人： Lowell L. Winger
CPC分类号： H04N19/107 , H04N19/115 , H04N19/124 , H04N19/176 , H04N19/18 , H04N19/61
摘要： An apparatus including a transformation circuit and a scaling/quantization circuit. The transformation circuit may be configured to generate one or more transform coefficients in response to a video stream and one or more first control signals. The transformation circuit may be further configured to limit transform coefficients for residual 4×4 blocks to a 16-bit value when the video stream comprises 8-bit video data. The scaling/quantization circuit may be configured to generate one or more quantization coefficients in response to the one or more transform coefficients and one or more second control signals.
摘要翻译： 一种包括变换电路和缩放/量化电路的装置。 变换电路可以被配置为响应于视频流和一个或多个第一控制信号而产生一个或多个变换系数。 变换电路还可以被配置为当视频流包括8位视频数据时将残差4×4块的变换系数限制为16位值。 缩放/量化电路可以被配置为响应于一个或多个变换系数和一个或多个第二控制信号而产生一个或多个量化系数。
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30.发明授权Method and apparatus for improved increased bit-depth display from a transform decoder by retaining additional inverse transform bits 有权用于通过保留附加的逆变换位来改进来自变换解码器的增加位深度显示的方法和装置公开(公告)号：US07860168B2
公开(公告)日：2010-12-28
申请号：US10974103
申请日：2004-10-27
申请人： Lowell L. Winger
发明人： Lowell L. Winger
IPC分类号： H04N7/12
CPC分类号： H04N19/577 , H04N19/105 , H04N19/117 , H04N19/132 , H04N19/154 , H04N19/159 , H04N19/176 , H04N19/184 , H04N19/423 , H04N19/44 , H04N19/61 , H04N19/82 , H04N19/85
摘要： A method and apparatus for processing a video block extracted from an encoded bitstream. The method generally includes the steps of (A) generating a normal block by inverse transforming the video block, the normal block having a normal resolution, (B) generating an alternate block from the video block, the alternate block comprising image detail (i) present after the inverse transforming and (ii) absent from the normal block and (C) generating an output block based on the normal block and the alternate block, the output block having an output resolution greater than the normal resolution.
摘要翻译： 一种用于处理从编码比特流提取的视频块的方法和装置。 该方法通常包括以下步骤：（A）通过对视频块进行逆变换来生成正常块，该正常块具有正常分辨率，（B）从视频块生成替代块，该替代块包括图像细节（i） 存在于逆变换之后，并且（ii）不存在于正常块中，（C）基于正常块和交替块生成输出块，输出块具有大于正常分辨率的输出分辨率。
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