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    Tertiary content addressable memory based motion estimator
    41.
    发明申请
    Tertiary content addressable memory based motion estimator 失效
    第三纪内容可寻址内存的运动估计器

    公开(公告)号：US20060023783A1

    公开(公告)日：2006-02-02

    申请号：US10900159

    申请日：2004-07-27

    申请人： Gaurav Aggarwal ,  Rajendra Khare

    发明人： Gaurav Aggarwal ,  Rajendra Khare

    IPC分类号： H04N7/12 ,  H04N11/04 ,  H04B1/66 ,  H04N11/02

    CPC分类号： H04N19/433 ,  H04N5/145

    摘要： Presented herein are Tertiary Content Addressable Memory based motion estimator(s). In one embodiment, there is presented a method for encoding a picture. The method comprises storing a reference picture in a memory; taking samples from at least one line of a prediction block; generating at least one data word, the data word being a function of the samples; addressing the memory with the at least one data word; receiving one or more addresses, said one or more addresses associated with one or more blocks; and selecting a reference block from the one or more blocks for the prediction block.

    摘要翻译： 这里提出的是基于第三纪内容可寻址存储器的运动估计器。 在一个实施例中，提出了一种用于对图像进行编码的方法。 该方法包括将参考图像存储在存储器中; 从预测块的至少一行获取样本; 生成至少一个数据字，所述数据字是样本的函数; 用所述至少一个数据字寻址所述存储器; 接收一个或多个地址，所述一个或多个地址与一个或多个块相关联; 以及从所述预测块的所述一个或多个块中选择参考块。

    Automatic coloring of pixels exposed during manipulation of image regions
    42.
    发明申请
    Automatic coloring of pixels exposed during manipulation of image regions 失效
    在图像区域操作期间曝光的像素的自动着色

    公开(公告)号：US20050084151A1

    公开(公告)日：2005-04-21

    申请号：US10981216

    申请日：2004-11-04

    申请人： Gaurav Aggarwal ,  Sugata Ghosal

    发明人： Gaurav Aggarwal ,  Sugata Ghosal

    IPC分类号： G06T11/80 ,  G06T1/00 ,  G06T11/00 ,  H04N1/387 ,  H04N1/46 ,  H04N1/60 ,  G06K9/00

    CPC分类号： G06T11/001

    摘要： The present invention relates to a method and system for modifying images characterized in that it includes the ability to assign colour intensity values to pixels exposed during image manipulation operations comprising: means for using the color intensity values of remaining pixels in the original image, and means for assigning color values to the exposed pixels that are similar to those of the surrounding pixels so that the exposed regions blends smoothly with the surrounding region. The instant invention also provides a configured computer program product for carrying out the above method.

    摘要翻译： 本发明涉及一种用于修改图像的方法和系统，其特征在于它包括将颜色强度值分配给在图像处理操作期间暴露的像素的能力，包括：用于使用原始图像中的剩余像素的颜色强度值的装置， 用于将颜色值分配给与周围像素类似的曝光像素，使得曝光区域与周围区域平滑地融合。 本发明还提供了一种用于执行上述方法的配置的计算机程序产品。

    Effective error concealment in real-world transmission environment
    43.
    发明授权
    Effective error concealment in real-world transmission environment 有权
    在现实世界的传播环境中有效的错误隐藏

    公开(公告)号：US08358694B2

    公开(公告)日：2013-01-22

    申请号：US12582423

    申请日：2009-10-20

    申请人： Gaurav Aggarwal

    发明人： Gaurav Aggarwal

    IPC分类号： H04N7/12

    CPC分类号： H04N19/159 ,  H04N19/174 ,  H04N19/895

    摘要： Systems, methods, and apparatuses are provided for concealing errors in video data. It is detected whether a slice group in a picture contains errors. When the slice group contains errors and the picture is not a first intra-picture following a channel change, the slice group in the picture is replaced with a slice group of a most recent intra-coded picture. When the slice group contains errors and the picture is the first intra-picture following the channel change, the slice group is replaced with black pixels.

    摘要翻译： 提供了系统，方法和装置来隐藏视频数据中的错误。 检测图片中的片组是否包含错误。 当片组包含错误并且图像不是频道改变之后的第一帧内图像时，图像中的片组被替换为最近的帧内编码图像的片组。 当片组包含错误并且图像是频道改变之后的第一帧内图像时，切片组被替换为黑色像素。

    Hits stream rewind
    44.
    发明授权
    Hits stream rewind 有权
    点击流倒带

    公开(公告)号：US07577204B2

    公开(公告)日：2009-08-18

    申请号：US10770912

    申请日：2004-02-03

    申请人： Gaurav Aggarwal ,  Marcus Kellerman ,  David Erickson

    发明人： Gaurav Aggarwal ,  Marcus Kellerman ,  David Erickson

    IPC分类号： H04N7/18

    CPC分类号： H04N19/107 ,  H04N19/174 ,  H04N19/44

    摘要： Schemes for rewinding a HITS stream in video recorder and playback systems are presented herein. Reference pictures are stored for a group of pictures, allowing subsequent pictures to be decoded from the reference pictures. The foregoing significantly reduces the number of picture decodes required to display a HITS stream in reverse order.

    摘要翻译： 本文给出了在录像机和回放系统中倒带HITS流的方案。 为一组图像存储参考图像，允许从参考图像解码后续图像。 上述显着地减少了以相反的顺序显示HITS流所需的图像解码的数量。

    CARRIER-BASED PULSE-WIDTH MODULATION (PWM) CONTROL FOR MATRIX CONVERTERS
    46.
    发明申请
    CARRIER-BASED PULSE-WIDTH MODULATION (PWM) CONTROL FOR MATRIX CONVERTERS 有权
    用于矩阵转换器的基于载波的脉宽调制（PWM）控制

    公开(公告)号：US20070268728A1

    公开(公告)日：2007-11-22

    申请号：US11752110

    申请日：2007-05-22

    申请人： Ned Mohan ,  Krushna Mohapatra ,  Satish Thuta ,  Gaurav Aggarwal ,  Philip Jose

    发明人： Ned Mohan ,  Krushna Mohapatra ,  Satish Thuta ,  Gaurav Aggarwal ,  Philip Jose

    IPC分类号： H02M7/5387

    CPC分类号： H02M5/297 ,  H02M5/271

    摘要： A matrix converter includes a plurality of switches that electrically connect a multi-phase input voltage source to a multi-phase load; and a controller to output pulse-width modulated (PWM) switching signals to control the switches to produce a multi-phase output voltage from the multi-phase input voltage source. The controller outputs the PWM switching signals by modulating a carrier signal with a time-varying signal having a frequency determined from a desired output frequency for the output voltage.

    摘要翻译： 矩阵转换器包括将多相输入电压源电连接到多相负载的多个开关; 以及控制器，用于输出脉冲宽度调制（PWM）切换信号以控制开关以从多相输入电压源产生多相输出电压。 控制器通过用从输出电压的期望输出频率确定的频率的时变信号调制载波信号来输出PWM开关信号。

    System and method for command for fast I-picture rewind
    48.
    发明申请
    System and method for command for fast I-picture rewind 审中-公开
    快速I-Picture倒带命令的系统和方法

    公开(公告)号：US20060062388A1

    公开(公告)日：2006-03-23

    申请号：US10943266

    申请日：2004-09-17

    申请人： Gaurav Aggarwal

    发明人： Gaurav Aggarwal

    IPC分类号： H04N7/167

    CPC分类号： H04N5/783 ,  H04N9/8042

    摘要： Presented herein are systems, methods, and apparatus for improving performance of video decoders during rewind and fast forward operation. Video decoder performance is improved by avoiding repetitive decoding of prediction pictures. When a decoded prediction picture is stored in a frame buffer, techniques are presented for decoding multiple pictures in the rewind order which are dependent thereon, displaying the picture directly from the frame buffer, and setting one type of prediction picture as another type of prediction picture.

    摘要翻译： 这里提出了用于在倒带和快进操作期间改善视频解码器的性能的系统，方法和装置。 通过避免对预测图像的重复解码来改善视频解码器的性能。 当解码的预测图像被存储在帧缓冲器中时，呈现用于解码依赖于其的倒带顺序的多个图像的技术，直接从帧缓冲器显示图像，并将一种类型的预测图像设置为另一种类型的预测图像 。

    Automatic coloring of pixels exposed during manipulation of image regions
    49.
    发明授权
    Automatic coloring of pixels exposed during manipulation of image regions 失效
    在图像区域操作期间曝光的像素的自动着色

    公开(公告)号：US06879717B2

    公开(公告)日：2005-04-12

    申请号：US09782937

    申请日：2001-02-13

    申请人： Gaurav Aggarwal ,  Sugata Ghosal

    发明人： Gaurav Aggarwal ,  Sugata Ghosal

    IPC分类号： G06T11/80 ,  G06T1/00 ,  G06T11/00 ,  H04N1/387 ,  H04N1/46 ,  H04N1/60 ,  G06K9/00

    CPC分类号： G06T11/001

    摘要： A system, method, and program storage device implementing the method for modifying images has the ability to assign color intensity values to pixels exposed during image manipulation operations. The method comprises using the color intensity values of remaining pixels in the original image, and assigning color values to the exposed pixels that are similar to those of the surrounding pixels so that the exposed regions blend smoothly with the surrounding region.

    摘要翻译： 实现用于修改图像的方法的系统，方法和程序存储设备具有将颜色强度值分配给在图像操作操作期间暴露的像素的能力。 该方法包括使用原始图像中的剩余像素的颜色强度值，并将颜色值分配给与周围像素相似的曝光像素，使得曝光区域与周边区域平滑地融合。

    Semi-fragile watermarks
    50.
    发明授权
    Semi-fragile watermarks 失效
    半脆弱水印

    公开(公告)号：US06834344B1

    公开(公告)日：2004-12-21

    申请号：US09398203

    申请日：1999-09-17

    申请人： Gaurav Aggarwal ,  Pradeep K. Dubey ,  Ashutosh Kulshreshtha ,  Marco Martens ,  Charles P. Tresser ,  Chai W. Wu

    发明人： Gaurav Aggarwal ,  Pradeep K. Dubey ,  Ashutosh Kulshreshtha ,  Marco Martens ,  Charles P. Tresser ,  Chai W. Wu

    IPC分类号： H04L900

    CPC分类号： G06T1/005 ,  G06T1/0042 ,  H04N1/32144 ,  H04N1/32154 ,  H04N2201/327

    摘要： A method is presented for marking high-quality digital images with a robust and invisible watermark. It requires the mark to survive and remain detectable and authenticatable through all image manipulations that in themselves do not damage the image beyond useability. These manipulations include JPEG “lossy” compression and, in the extreme, the printing and rescanning of the image. The watermark also has the property that it can detect if the essential contents of the image has changed. The first phase of the method comprises extracting a digest or number N from the image so that N only (or mostly) depends on the essential information content, such that the same number N can be obtained from a scan of a high quality print of the image, from the compressed form of the image, or in general, from the image after minor modifications (introduced inadvertently by processing, noise etc.). The second phase comprises the marking. This can be done in form of an invisible robust watermark, or in form of some visible signature or watermark.

    摘要翻译： 提出了一种用强大且不可见的水印标记高质量数字图像的方法。 它需要标记生存，并通过所有图像操作保持可检测和可认证，这本身不会损害图像超出可用性。 这些操作包括JPEG“有损”压缩，在极端情况下，打印和重新扫描图像。 该水印还具有可以检测图像的基本内容是否已改变的属性。 该方法的第一阶段包括从图像中提取摘要或数字N，使得仅N（或主要地）取决于基本信息内容，使得可以从扫描的高质量打印获得相同数量N 图像，从图像的压缩形式，或一般来说，从稍后修改的图像（通过处理，噪声等无意中引入）。 第二阶段包括标记。 这可以以不可见的鲁棒水印的形式或以一些可见的签名或水印的形式来完成。