Method for activation and deactivation of infrequently changing sequence and picture parameter sets
    61.
    发明授权
    Method for activation and deactivation of infrequently changing sequence and picture parameter sets 有权
    不频繁变化的序列和图像参数集的激活和去激活的方法

    公开(公告)号:US08233547B2

    公开(公告)日:2012-07-31

    申请号:US12190629

    申请日:2008-08-13

    申请人: Lowell L. Winger

    发明人: Lowell L. Winger

    IPC分类号: H04N7/12

    摘要: A method for activating and deactivating parameter sets during decoding of a bitstream for display, comprising the steps of: (A) tagging a first picture parameter information set associated with a first identification value as active in response to a reference to the first identification value in a bitstream; (B) changing the tag of the first picture parameter information set from active to inactive and tagging a second picture parameter information set associated with a second identification value as active in response to a reference to the second identification value in the bitstream; and (C) tagging the second picture parameter information set as inactive and re-tagging the first picture parameter information set as active in response to a subsequent reference to the first identification value in the bitstream.

    摘要翻译: 一种用于在用于显示的比特流的解码期间激活和去激活参数集的方法,包括以下步骤:(A)响应于对所述第一标识值的引用,将与第一标识值相关联的第一图像参数信息集合标记为有效 比特流 (B)响应于对比特流中的第二识别值的引用,将第一图像参数信息集合的标签从活动改变为无效,并且将与第二标识值相关联的第二图像参数信息集合标记为有效; 以及(C)将所述第二图像参数信息集合标记为非活动状态,并且响应于对所述比特流中的所述第一识别值的后续参考,将所述第一图像参数信息集合重新标记为有效。

    Baseband signal quantizer estimation
    62.
    发明授权
    Baseband signal quantizer estimation 有权
    基带信号量化器估计

    公开(公告)号:US08150187B1

    公开(公告)日:2012-04-03

    申请号:US11947037

    申请日:2007-11-29

    IPC分类号: G06K9/00

    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。

    Method and apparatus for H.264 to MPEG-2 video transcoding
    63.
    发明授权
    Method and apparatus for H.264 to MPEG-2 video transcoding 有权
    用于H.264到MPEG-2视频转码的方法和装置

    公开(公告)号:US08144783B2

    公开(公告)日:2012-03-27

    申请号:US12910169

    申请日:2010-10-22

    IPC分类号: H04B1/66

    摘要: A method for transcoding from an H.264 format to an MPEG-2 format is disclosed. The method generally comprises the steps of (A) decoding an input video stream in the H.264 format to generate a picture having a plurality of macroblock pairs that used an H.264 macroblock adaptive field/frame coding; (B) determining a mode indicator for each of the macroblock pairs; and (C) coding the macroblock pairs into an output video stream in the MPEG-2 format using one of (i) an MPEG-2 field mode coding and (ii) an MPEG-2 frame mode coding as determined from the mode indicators.

    摘要翻译: 公开了一种从H.264格式转换为MPEG-2格式的方法。 该方法通常包括以下步骤:(A)以H.264格式解码输入视频流,以产生具有使用H.264宏块自适应字段/帧编码的多个宏块对的图像; (B)确定每个宏块对的模式指示符; 以及(C)使用MPEG-2场模式编码和(ii)从模式指示符确定的MPEG-2帧模式编码之一,将宏块对编码为MPEG-2格式的输出视频流。

    Memory reduced H264/MPEG-4 AVC codec
    64.
    发明授权
    Memory reduced H264/MPEG-4 AVC codec 有权
    内存缩小了H264 / MPEG-4 AVC编解码器

    公开(公告)号:US08121195B2

    公开(公告)日:2012-02-21

    申请号:US11606541

    申请日:2006-11-30

    申请人: Lowell L. Winger

    发明人: Lowell L. Winger

    IPC分类号: H04N11/04

    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。

    METHOD AND APPARATUS FOR MPEG-2 TO VC-1 VIDEO TRANSCODING
    65.
    发明申请
    METHOD AND APPARATUS FOR MPEG-2 TO VC-1 VIDEO TRANSCODING 有权
    MPEG-2到VC-1视频转码的方法和装置

    公开(公告)号:US20120002727A1

    公开(公告)日:2012-01-05

    申请号:US13222118

    申请日:2011-08-31

    IPC分类号: H04N7/26

    摘要: A method for transcoding from an MPEG-2 format to a VC-1 format is disclosed. The method generally comprises the steps of (A) decoding an input video stream in the MPEG-2 format to generate a picture; (B) determining a mode indicator for the picture; and (C) coding the picture into an output video stream in the VC-1 format using one of (i) a VC-1 field mode coding and (ii) a VC-1 frame mode coding as determined from the mode indicator.

    摘要翻译: 公开了一种从MPEG-2格式转换为VC-1格式的方法。 该方法通常包括以下步骤:(A)以MPEG-2格式对输入视频流进行解码以产生图像; (B)确定图像的模式指示符; 以及(C)使用(i)从模式指示符确定的VC-1场模式编码和(ii)VC-1帧模式编码中的一个将图像编码为VC-1格式的输出视频流。

    Detection of moving interlaced text for film mode decision
    66.
    发明授权
    Detection of moving interlaced text for film mode decision 有权
    检测电影模式决定的移动交错文本

    公开(公告)号:US08023041B2

    公开(公告)日:2011-09-20

    申请号:US11343119

    申请日:2006-01-30

    IPC分类号: H04N7/01 H04N5/14 H04N5/228

    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。

    Sign coring for contour reduction
    67.
    发明授权
    Sign coring for contour reduction 有权
    标记取心轮廓减少

    公开(公告)号:US07983504B2

    公开(公告)日:2011-07-19

    申请号:US12624548

    申请日:2009-11-24

    申请人: Lowell L. Winger

    发明人: Lowell L. Winger

    IPC分类号: G06K9/40

    CPC分类号: G06K9/40

    摘要: A method for contour reduction in a digital picture is disclosed. The method generally includes the steps of (A) buffering a plurality of luma samples in a current line of the digital picture, each of the luma samples having a respective input value, (B) calculating a plurality of horizontal sum-of-signs along the current line, wherein each of the horizontal sum-of-signs comprises a sum of a plurality of amplitude differences between pairs the luma samples from the current line and (C) generating a plurality of output value based on the horizontal sum-of-signs, one of the output values for each one of the luma samples.

    摘要翻译: 公开了一种用于数字图像中轮廓缩减的方法。 该方法通常包括以下步骤:(A)在数字图像的当前行中缓冲多个亮度样本,每个亮度样本具有相应的输入值,(B)沿着计算多个水平符号 当前行,其中每个水平符号包括来自当前行的亮度样本之间的对之间的多个幅度差的总和,以及(C)基于水平和值生成多个输出值, 符号,每个亮度样本的输出值之一。

    H.264 TO VC-1 AND VC-1 TO H.264 TRANSCODING
    68.
    发明申请
    H.264 TO VC-1 AND VC-1 TO H.264 TRANSCODING 有权
    H.264到VC-1和VC-1到H.264转码

    公开(公告)号:US20110135004A1

    公开(公告)日:2011-06-09

    申请号:US13029291

    申请日:2011-02-17

    IPC分类号: H04N7/12

    摘要: A method for transcoding from an H.264 format to a VC-1 format. The method generally comprises the steps of (A) decoding an input video stream in the H.264 format to generate a picture having a plurality of macroblock pairs that used an H.264 macroblock adaptive field/frame coding; (B) determining a mode indicator for each of the macroblock pairs; and (C) coding the macroblock pairs into an output video stream in the VC-1 format using one of (i) a VC-1 field motion compensation mode coding and (ii) a VC-1 frame motion compensation mode coding as determined from the mode indicator.

    摘要翻译: 一种从H.264格式转码为VC-1格式的方法。 该方法通常包括以下步骤:(A)以H.264格式解码输入视频流,以产生具有使用H.264宏块自适应字段/帧编码的多个宏块对的图像; (B)确定每个宏块对的模式指示符; 以及(C)使用(i)VC-1场运动补偿模式编码和(ii)VC-1帧运动补偿模式编码中的一个将所述宏块对编码为VC-1格式的输出视频流, 模式指示器。

    METHOD AND APPARATUS FOR H.264 TO MPEG-2 VIDEO TRANSCODING
    69.
    发明申请
    METHOD AND APPARATUS FOR H.264 TO MPEG-2 VIDEO TRANSCODING 有权
    H.264到MPEG-2视频传输的方法和装置

    公开(公告)号:US20110032992A1

    公开(公告)日:2011-02-10

    申请号:US12910169

    申请日:2010-10-22

    IPC分类号: H04N7/26

    摘要: A method for transcoding from an H.264 format to an MPEG-2 format is disclosed. The method generally comprises the steps of (A) decoding an input video stream in the H.264 format to generate a picture having a plurality of macroblock pairs that used an H.264 macroblock adaptive field/frame coding; (B) determining a mode indicator for each of the macroblock pairs; and (C) coding the macroblock pairs into an output video stream in the MPEG-2 format using one of (i) an MPEG-2 field mode coding and (ii) an MPEG-2 frame mode coding as determined from the mode indicators.

    摘要翻译: 公开了一种从H.264格式转换为MPEG-2格式的方法。 该方法通常包括以下步骤:(A)以H.264格式解码输入视频流,以产生具有使用H.264宏块自适应字段/帧编码的多个宏块对的图像; (B)确定每个宏块对的模式指示符; 以及(C)使用MPEG-2场模式编码和(ii)从模式指示符确定的MPEG-2帧模式编码之一,将宏块对编码为MPEG-2格式的输出视频流。

    Method and apparatus for masking of video artifacts and/or insertion of film grain in a video decoder
    70.
    发明授权
    Method and apparatus for masking of video artifacts and/or insertion of film grain in a video decoder 有权
    用于在视频解码器中屏蔽视频伪影和/或胶片颗粒的插入的方法和装置

    公开(公告)号:US07719618B2

    公开(公告)日:2010-05-18

    申请号:US12212760

    申请日:2008-09-18

    申请人: Lowell L. Winger

    发明人: Lowell L. Winger

    IPC分类号: H04N5/50

    摘要: A video decoder comprising a first comfort noise addition block and a second comfort noise addition block. The first comfort noise addition block may be configured to (i) add comfort noise to luminance data and (ii) adjust a distribution of the comfort noise added to the luminance data. The second comfort noise addition block may be configured to (i) add comfort noise to chrominance data and (ii) adjust a distribution of the comfort noise added to the chrominance data. The first and the second comfort noise addition blocks may be integrated into a video output path of the video decoder. The distribution of the comfort noise added to the luminance data and the distribution of the comfort noise added to the chrominance data may be adjusted independently.

    摘要翻译: 一种视频解码器,包括第一舒适噪声添加块和第二舒适噪声添加块。 第一舒适噪声添加块可以被配置为(i)向亮度数据添加舒适噪声,以及(ii)调整添加到亮度数据的舒适噪声的分布。 第二舒适噪声添加块可以被配置为(i)将舒适噪声添加到色度数据,以及(ii)调整添加到色度数据的舒适噪声的分布。 第一和第二舒适噪声添加块可以被集成到视频解码器的视频输出路径中。 可以独立地调整添加到亮度数据的舒适噪声的分布和添加到色度数据的舒适噪声的分布。