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    VIDEO CODING SYSTEM USING IMPLIED REFERENCE FRAMES
    1.
    发明申请
    VIDEO CODING SYSTEM USING IMPLIED REFERENCE FRAMES 有权
    使用暗示参考框架的视频编码系统

    公开(公告)号：US20120170654A1

    公开(公告)日：2012-07-05

    申请号：US12986703

    申请日：2011-01-07

    申请人： Ke Zhang ,  Dazhong Zhang ,  Douglas Scott Price ,  Hsi-Jung Wu ,  Xiaosong Zhou

    发明人： Ke Zhang ,  Dazhong Zhang ,  Douglas Scott Price ,  Hsi-Jung Wu ,  Xiaosong Zhou

    IPC分类号： H04N7/32 ,  H04N7/26

    CPC分类号： H04N7/26 ,  H04N19/23 ,  H04N19/58

    摘要： A video coding/decoding system builds implied reference frames from a plurality of reference frames developed during coding. Coded data of reference pictures are decoded and stored in a reference picture cache. An implied reference frame may be derived from a plurality of reference frames and may be stored in the reference picture cache. Thereafter, coding of new input data may proceed using the implied reference frame as a source of prediction. The method may be used to identify visual elements such as background elements that may persist in video over a longer period that can be captured by the system under conventional reference frames assembly and eviction. Implied reference frames may be built at both an encoder and a decoder to serve as sources of prediction.

    摘要翻译： 视频编码/解码系统从编码期间开发的多个参考帧构建隐含的参考帧。 参考图像的编码数据被解码并存储在参考图像缓存中。 可以从多个参考帧导出隐含的参考帧，并且可以将其存储在参考图像高速缓存中。 此后，可以使用隐含参考帧作为预测源来进行新输入数据的编码。 该方法可以用于识别视觉元素，例如可以在可在常规参考帧组装和驱逐下由系统捕获的较长时间段内持续存在视频的背景元素。 可以在编码器和解码器两者构建隐含的参考帧以用作预测的源。

    Video coding system using implied reference frames
    2.
    发明授权
    Video coding system using implied reference frames 有权
    视频编码系统使用隐含的参考帧

    公开(公告)号：US08842723B2

    公开(公告)日：2014-09-23

    申请号：US12986703

    申请日：2011-01-07

    申请人： Ke Zhang ,  Dazhong Zhang ,  Douglas Scott Price ,  Hsi-Jung Wu ,  Xiaosong Zhou

    发明人： Ke Zhang ,  Dazhong Zhang ,  Douglas Scott Price ,  Hsi-Jung Wu ,  Xiaosong Zhou

    IPC分类号： H04N7/26 ,  H04N7/32 ,  H04N19/00 ,  H04N19/50

    CPC分类号： H04N7/26 ,  H04N19/23 ,  H04N19/58

    摘要： A video coding/decoding system builds implied reference frames from a plurality of reference frames developed during coding. Coded data of reference pictures are decoded and stored in a reference picture cache. An implied reference frame may be derived from a plurality of reference frames and may be stored in the reference picture cache. Thereafter, coding of new input data may proceed using the implied reference frame as a source of prediction. The method may be used to identify visual elements such as background elements that may persist in video over a longer period that can be captured by the system under conventional reference frames assembly and eviction. Implied reference frames may be built at both an encoder and a decoder to serve as sources of prediction.

    摘要翻译： 视频编码/解码系统从编码期间开发的多个参考帧构建隐含的参考帧。 参考图像的编码数据被解码并存储在参考图像缓存中。 可以从多个参考帧导出隐含的参考帧，并且可以将其存储在参考图像高速缓存中。 此后，可以使用隐含参考帧作为预测源来进行新输入数据的编码。 该方法可以用于识别视觉元素，例如可以在可在常规参考帧组装和驱逐下由系统捕获的较长时间段内持续存在视频的背景元素。 可以在编码器和解码器两者构建隐含的参考帧以用作预测的源。

    PREDICTIVE VIDEO CODER WITH LOW POWER REFERENCE PICTURE TRANSFORMATION
    3.
    发明申请
    PREDICTIVE VIDEO CODER WITH LOW POWER REFERENCE PICTURE TRANSFORMATION 有权
    具有低功率参考图像转换的预测视频编码器

    公开(公告)号：US20130329799A1

    公开(公告)日：2013-12-12

    申请号：US13755928

    申请日：2013-01-31

    申请人： Yao-Chung Lin ,  Xiaosong Zhou ,  Hsi-Jung Wu ,  Douglas Scott Price ,  Chris Y. Chung ,  Dazhong Zhang

    发明人： Yao-Chung Lin ,  Xiaosong Zhou ,  Hsi-Jung Wu ,  Douglas Scott Price ,  Chris Y. Chung ,  Dazhong Zhang

    IPC分类号： H04N7/26

    CPC分类号： H04N19/51 ,  H04N19/503

    摘要： Video coders may perform perspective transformation of reference frames during coding in a manner that conserves processing resources. When a new input frame is available for coding, a camera position for the input frame may be estimated. A video coder may search for reference pictures having similar camera positions as the position of the input frame and, for each reference picture identified, the video coder may perform a prediction search to identify a reference picture that is the best prediction match for the input frame. Once the video coder identifies a reference picture to serve as a prediction source for the input frame, the video coder may derive a transform to match the reference frame data to the input frame data and may transform the reference picture accordingly. The video coder may code the input frame using the transformed reference picture as a prediction reference and may transmit coded frame data and the camera position of the input frame to a decoder. Thus, the video coder may perform derivation and execution of transforms on a limited basis which conserves system resources.

    摘要翻译： 视频编码器可以在编码期间以保存处理资源的方式执行参考帧的透视变换。 当新的输入帧可用于编码时，可以估计用于输入帧的摄像机位置。 视频编码器可以搜索具有与输入帧的位置相似的相机位置的参考图像，并且对于识别的每个参考图像，视频编码器可以执行预测搜索以识别作为输入帧的最佳预测匹配的参考图像 。 一旦视频编码器识别用作输入帧的预测源的参考图像，则视频编码器可以导出将参考帧数据与输入帧数据相匹配的变换，并且可以相应地变换参考图像。 视频编码器可以使用变换的参考图片作为预测参考来对输入帧进行编码，并且可以将编码的帧数据和输入帧的摄像机位置发送到解码器。 因此，视频编码器可以在有限的基础上进行变换的推导和执行，从而节省系统资源。

    Compression-quality driven image acquisition and processing system
    6.
    发明授权
    Compression-quality driven image acquisition and processing system 有权
    压缩质量驱动图像采集和处理系统

    公开(公告)号：US08493499B2

    公开(公告)日：2013-07-23

    申请号：US12794475

    申请日：2010-06-04

    申请人： Xiaosong Zhou ,  Douglas Scott Price ,  Hsi-Jung Wu ,  Dazhong Zhang

    发明人： Xiaosong Zhou ,  Douglas Scott Price ,  Hsi-Jung Wu ,  Dazhong Zhang

    IPC分类号： H04N5/235 ,  H04N7/12 ,  G06K9/36

    CPC分类号： H04N5/232 ,  H04N19/102 ,  H04N19/117 ,  H04N19/134 ,  H04N19/146 ,  H04N19/154 ,  H04N19/85

    摘要： Embodiments of the present invention provide a video encoding system in which a video coding engine establishes coding quality metrics that govern its own operation as well as the operation of a camera and/or a pre-processor. An imaging system may include an image acquisition system, a pre-processor and a coding engine. The coding engine may output a quality indicator identifying, for each portion of a video sequence currently being coded, a relatively level of coding quality that is being achieved. The imaging system further may include an image acquisition controller and a pre-processor controller that impose respective operating parameters upon the image acquisition system and the pre-processor in response to these quality indicators. In this manner, overall performance of the imaging system may be improved.

    摘要翻译： 本发明的实施例提供了一种视频编码系统，其中视频编码引擎建立控制其自身操作以及照相机和/或预处理器的操作的编码质量度量。 成像系统可以包括图像采集系统，预处理器和编码引擎。 编码引擎可以输出质量指示符，对于正在编码的视频序列的每个部分，识别正在实现的相对级别的编码质量。 成像系统还可以包括图像采集控制器和预处理器控制器，其响应于这些质量指示器，在图像采集系统和预处理器上施加相应的操作参数。 以这种方式，可以提高成像系统的整体性能。

    METHOD AND APPARATUS FOR ERROR RESILIENT LONG TERM REFERENCING BLOCK REFRESH
    7.
    发明申请
    METHOD AND APPARATUS FOR ERROR RESILIENT LONG TERM REFERENCING BLOCK REFRESH 审中-公开
    用于错误恢复长期参考块修改的方法和装置

    公开(公告)号：US20120106632A1

    公开(公告)日：2012-05-03

    申请号：US12914650

    申请日：2010-10-28

    申请人： Dazhong Zhang ,  Xiaosong Zhou ,  Hsi-Jung Wu

    发明人： Dazhong Zhang ,  Xiaosong Zhou ,  Hsi-Jung Wu

    IPC分类号： H04N7/50

    CPC分类号： H04N19/89 ,  H04N19/107 ,  H04N19/14 ,  H04N19/176 ,  H04N19/61

    摘要： A system and method for coding video data wherein a pixel block may be coded for refresh with reference to an LTR frame that was successfully transmitted, or has a high probability of having been successfully transmitted from the encoder to the decoder. Not all pixel blocks in the frame may be refreshed at the same rate. Pixel blocks containing edge details, containing a significant object, or containing foreground image data may be refreshed more often than pixel blocks containing smooth, background, or relatively less significant image data.

    摘要翻译： 一种用于对视频数据进行编码的系统和方法，其中像素块可以被编码用于参考已经成功发送的LTR帧进行刷新，或者具有从编码器成功发送到解码器的高概率。 不是帧中的所有像素块可以以相同的速率刷新。 包含重要对象或包含前景图像数据的边缘细节的像素块可能比包含平滑，背景或相对不太重要的图像数据的像素块更频繁地刷新。