METHOD AND APPARATUS FOR H.264 TO MPEG-2 VIDEO TRANSCODING
    71.
    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
    72.
    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。

    SIGN CORING FOR CONTOUR REDUCTION
    73.
    发明申请
    SIGN CORING FOR CONTOUR REDUCTION 有权
    减少轮廓的标志

    公开(公告)号:US20100067817A1

    公开(公告)日:2010-03-18

    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: G06K9/44

    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。

    Method and/or apparatus for video watermarking and steganography using simulated film grain
    74.
    发明授权
    Method and/or apparatus for video watermarking and steganography using simulated film grain 失效
    用于使用模拟胶片颗粒的视频水印和隐写术的方法和/或装置

    公开(公告)号:US07596239B2

    公开(公告)日:2009-09-29

    申请号:US11195048

    申请日:2005-08-02

    IPC分类号: G06K9/00

    摘要: An apparatus comprising a first circuit, a second circuit, and a watermark detection circuit. The first circuit may be configured to generate a bitstream, wherein the bitstream comprises a watermark message which represents hidden information. The second circuit may be configured to (i) simulate film grain in response to one or more predetermined values on the watermark message and (ii) generate a video output. The watermark detection circuit may be configured to extract hidden information from the decoded video output.

    摘要翻译: 一种包括第一电路,第二电路和水印检测电路的装置。 第一电路可以被配置为生成比特流,其中比特流包括表示隐藏信息的水印消息。 第二电路可以被配置为(i)响应于水印消息上的一个或多个预定值来模拟胶片颗粒,并且(ii)生成视频输出。 水印检测电路可以被配置为从解码的视频输出中提取隐藏信息。

    METHOD AND APPARATUS FOR MASKING OF VIDEO ARTIFACTS AND/OR INSERTION OF FILM GRAIN IN A VIDEO DECODER
    75.
    发明申请
    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制品和/或插入胶片的方法和装置

    公开(公告)号:US20090016444A1

    公开(公告)日:2009-01-15

    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: H04N7/12

    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。

    Memory reduced H264/MPEG-4 AVC codec
    76.
    发明申请
    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:US20080130754A1

    公开(公告)日:2008-06-05

    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: H04N7/46

    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。

    Computational reduction in motion estimation based on lower bound of cost function
    77.
    发明授权
    Computational reduction in motion estimation based on lower bound of cost function 有权
    基于成本函数下限的运动估计的计算减少

    公开(公告)号:US07362809B2

    公开(公告)日:2008-04-22

    申请号:US10732137

    申请日:2003-12-10

    IPC分类号: H04N7/12

    CPC分类号: H04N19/557

    摘要: A method for motion estimation comprising the steps of (A) determining whether a cost of encoding one or more prediction parameters for a current search position is less than a current best cost, (B) when the cost of encoding the one or more prediction parameters for the current search position is greater than or equal to the current best cost, determining whether the current best cost is less than a minimum cost for encoding one or more prediction parameters of one or more remaining search positions and (C) ending the search when the current best cost is less than the minimum cost for encoding the one or more prediction parameters of the one or more remaining search positions.

    摘要翻译: 一种用于运动估计的方法,包括以下步骤:(A)确定当前搜索位置的一个或多个预测参数的编码成本是否小于当前最佳成本,(B)当编码所述一个或多个预测参数 对于当前搜索位置大于或等于当前最佳成本,确定当前最佳成本是否小于编码一个或多个剩余搜索位置的一个或多个预测参数的最小成本,以及(C)结束搜索时 目前的最佳成本小于编码一个或多个剩余搜索位置的一个或多个预测参数的最小成本。

    Method and/or apparatus for reducing the complexity of non-reference frame encoding using selective reconstruction
    79.
    发明授权
    Method and/or apparatus for reducing the complexity of non-reference frame encoding using selective reconstruction 有权
    用于使用选择性重建降低非参考帧编码的复杂度的方法和/或装置

    公开(公告)号:US07324595B2

    公开(公告)日:2008-01-29

    申请号:US10667948

    申请日:2003-09-22

    IPC分类号: H04N7/12 G06K9/36

    摘要: A method for implementing non-reference frame prediction in video compression comprising the steps of (A) setting a prediction flag (i) “off” if non-reference frames are used for block prediction and (ii) “on” if non-reference frames are not used for block prediction, (B) if the prediction flag is off, generating an output video signal in response to an input video signal by performing an inverse quantization step and an inverse transform step in accordance with a predefined coding specification and (C) if the prediction flag is on, bypassing the inverse quantization step and the inverse transform step.

    摘要翻译: 一种用于在视频压缩中实现非参考帧预测的方法,包括以下步骤:(A)如果非参考帧用于块预测,则将预测标志(i)设置为“关闭”,以及(ii)如果非参考 帧不用于块预测,(B)如果预测标志关闭,则通过根据预定义的编码规范执行逆量化步骤和逆变换步骤,响应于输入视频信号生成输出视频信号,并且( C)如果预测标志为ON,则绕过逆量化步骤和逆变换步骤。

    Method and apparatus for MPEG-2 to VC-1 video transcoding
    80.
    发明授权
    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:US08654853B2

    公开(公告)日:2014-02-18

    申请号:US13222118

    申请日:2011-08-31

    IPC分类号: H04B1/66

    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。