Compression Rate Control System And Method With Variable Subband Processing
    1.
    发明申请
    Compression Rate Control System And Method With Variable Subband Processing 失效
    压缩率控制系统及其可变子带处理方法

    公开(公告)号:US20110307928A1

    公开(公告)日:2011-12-15

    申请号:US12422157

    申请日:2009-04-10

    IPC分类号: H04N7/16 H03M7/30

    摘要: A system, method and computer program product provide finer rate control in data compression by processing a data stream through a plurality of parallel subbands, wherein a first subband processes the data differently than a second subband. Separate shift quantization parameters for each separate run-of-zeros compressed storage area or pile can be provided, instead of a single common shift parameter for every coefficient as in the prior art. The parameter value for each such area or pile can be recorded in the compressed output file. The separate shift quantization parameters can also be adjusted dynamically as data is being compressed.

    摘要翻译: 系统,方法和计算机程序产品通过处理通过多个并行子带的数据流来提供数据压缩中的更精细的速率控制,其中第一子带处理不同于第二子带的数据。 可以提供针对每个单独的零级压缩存储区域或堆的单独的移位量化参数,而不是如现有技术中的每个系数的单个公共移位参数。 每个这样的区域或桩的参数值可以记录在压缩的输出文件中。 单独的移位量化参数也可以随着数据被压缩而动态地调整。

    Multiple Technique Entropy Coding System And Method
    4.
    发明申请
    Multiple Technique Entropy Coding System And Method 审中-公开
    多技术熵编码系统及方法

    公开(公告)号:US20090080788A1

    公开(公告)日:2009-03-26

    申请号:US12234472

    申请日:2008-09-19

    IPC分类号: G06K9/36

    摘要: A system, method and computer program product having optimal matching to a known or measured probability distribution encodes data without the use of an excessively large lookup table. An encoder constructed according to the present invention uses two or more different encoding methods in combination. In one embodiment, Huffman coding by table lookup is combined with computational generation, such as by using an exponential Golomb equation. The most commonly occurring elements are looked up in a small Huffman table, while the remaining elements are coded with the equation. In another embodiment, data is encoded using two or more equations. In yet another embodiment, data is encoded using multiple tables in conjunction with one or more equations.

    摘要翻译: 具有与已知或测量的概率分布的最佳匹配的系统,方法和计算机程序产品在不使用过大查找表的情况下对数据进行编码。 根据本发明构造的编码器组合使用两种或更多种不同的编码方法。 在一个实施例中,通过表查找的霍夫曼编码与计算生成相结合,例如通过使用指数Golomb方程。 最常见的元素是在一个小霍夫曼表中查找,而其余元素用等式编码。 在另一个实施例中,使用两个或多个等式对数据进行编码。 在另一个实施例中,数据使用多个表结合一个或多个等式进行编码。

    Multiple technique entropy coding system and method
    5.
    发明授权
    Multiple technique entropy coding system and method 失效
    多技术熵编码系统及方法

    公开(公告)号:US07436329B2

    公开(公告)日:2008-10-14

    申请号:US11232726

    申请日:2005-09-21

    IPC分类号: H03M7/34

    摘要: A system, method and computer program product having optimal matching to a known or measured probability distribution encodes data without the use of an excessively large lookup table. An encoder constructed according to the present invention uses two or more different encoding methods in combination. In one embodiment, Huffman coding by table lookup is combined with computational generation, such as by using an exponential Golomb equation. The most commonly occurring elements are looked up in a small Huffman table, while the remaining elements are coded with the equation. In another embodiment, data is encoded using two or more equations. In yet another embodiment, data is encoded using multiple tables in conjunction with one or more equations.

    摘要翻译: 具有与已知或测量的概率分布的最佳匹配的系统,方法和计算机程序产品在不使用过大查找表的情况下对数据进行编码。 根据本发明构造的编码器组合使用两种或更多种不同的编码方法。 在一个实施例中,通过表查找的霍夫曼编码与计算生成相结合,例如通过使用指数Golomb方程。 最常见的元素是在一个小霍夫曼表中查找,而其余元素用等式编码。 在另一个实施例中,使用两个或多个等式对数据进行编码。 在另一个实施例中,数据使用多个表结合一个或多个等式进行编码。

    Multiple technique entropy coding system and method
    6.
    发明授权
    Multiple technique entropy coding system and method 有权
    多技术熵编码系统及方法

    公开(公告)号:US08947271B2

    公开(公告)日:2015-02-03

    申请号:US13155280

    申请日:2011-06-07

    摘要: A system, method and computer program product having optimal matching to a known or measured probability distribution encodes data without the use of an excessively large lookup table. An encoder constructed according to the present invention uses two or more different encoding methods in combination. In one embodiment, Huffman coding by table lookup is combined with computational generation, such as by using an exponential Golomb equation. The most commonly occurring elements are looked up in a small Huffman table, while the remaining elements are coded with the equation. In another embodiment, data is encoded using two or more equations. In yet another embodiment, data is encoded using multiple tables in conjunction with one or more equations.

    摘要翻译: 具有与已知或测量的概率分布的最佳匹配的系统,方法和计算机程序产品在不使用过大查找表的情况下对数据进行编码。 根据本发明构造的编码器组合使用两种或更多种不同的编码方法。 在一个实施例中,通过表查找的霍夫曼编码与计算生成相结合,例如通过使用指数Golomb方程。 最常见的元素是在一个小霍夫曼表中查找,而其余元素用等式编码。 在另一个实施例中,使用两个或多个等式对数据进行编码。 在另一个实施例中,数据使用多个表结合一个或多个等式进行编码。

    Multiple Technique Entropy Coding System and Method
    7.
    发明申请
    Multiple Technique Entropy Coding System and Method 有权
    多技术熵编码系统及方法

    公开(公告)号:US20110234431A1

    公开(公告)日:2011-09-29

    申请号:US13155280

    申请日:2011-06-07

    IPC分类号: H03M7/34

    摘要: A system, method and computer program product having optimal matching to a known or measured probability distribution encodes data without the use of an excessively large lookup table. An encoder constructed according to the present invention uses two or more different encoding methods in combination. In one embodiment, Huffman coding by table lookup is combined with computational generation, such as by using an exponential Golomb equation. The most commonly occurring elements are looked up in a small Huffman table, while the remaining elements are coded with the equation. In another embodiment, data is encoded using two or more equations. In yet another embodiment, data is encoded using multiple tables in conjunction with one or more equations.

    摘要翻译: 具有与已知或测量的概率分布的最佳匹配的系统,方法和计算机程序产品在不使用过大查找表的情况下对数据进行编码。 根据本发明构造的编码器组合使用两种或更多种不同的编码方法。 在一个实施例中,通过表查找的霍夫曼编码与计算生成相结合,例如通过使用指数Golomb方程。 最常见的元素是在一个小霍夫曼表中查找,而其余元素用等式编码。 在另一个实施例中,使用两个或多个等式对数据进行编码。 在另一个实施例中,数据使用多个表结合一个或多个等式进行编码。

    System And Method For Temporal Out-Of-Order Compression And Multi-Source Compression Rate Control
    8.
    发明申请
    System And Method For Temporal Out-Of-Order Compression And Multi-Source Compression Rate Control 审中-公开
    用于时间无序压缩和多源压缩率控制的系统和方法

    公开(公告)号:US20110255609A1

    公开(公告)日:2011-10-20

    申请号:US12493091

    申请日:2009-06-26

    IPC分类号: H04N7/26

    摘要: A system, method, and computer program product are provided for temporal video compression. In use, portions of video are buffered in a first order. Further, the portions of video are at least partially temporally compressed in a second order. Another system, method, and computer program product are further provided for compressing video from a plurality of sources. In use, video is received from a plurality of sources. Such video from the sources is then compressed. Such compression is carried out using a plurality of rate controls. In various embodiments, the video may be received by way of a single video stream, and/or the compression may be carried by way of a single compression module.

    摘要翻译: 提供了一种用于时间视频压缩的系统,方法和计算机程序产品。 在使用中,视频的一部分以第一顺序被缓冲。 此外,视频的部分至少部分地以二次时间压缩。 还提供另一种系统,方法和计算机程序产品,用于压缩来自多个源的视频。 在使用中,从多个源接收视频。 然后来自源的这样的视频被压缩。 这种压缩使用多个速率控制来进行。 在各种实施例中,可以通过单个视频流来接收视频,和/或可以通过单个压缩模块来承载压缩。

    Image and video quality assessment
    10.
    发明授权
    Image and video quality assessment 有权
    图像和视频质量评估

    公开(公告)号:US08848061B2

    公开(公告)日:2014-09-30

    申请号:US13534617

    申请日:2012-06-27

    CPC分类号: H04N17/004

    摘要: Evaluating coded video by identifying spatial and temporal errors in the reconstructed video. Spatial errors may be identified by evaluating the severity of each individual error and pooling closely located errors to determine whether the collection of errors is noticeable. Temporal errors may be identified by evaluating the quality of each frame and then pooling consecutive frames to determine whether the collection of frames has errors that may be noticeable if the errors persist within the sequence of consecutive frames. The quality of the frames may be analyzed with any conventional analysis metric. In an embodiment, the quality of the frames may be analyzed using a row-column metric. The calculated analysis metrics may be normalized to accurately compare different metric calculations.

    摘要翻译: 通过识别重建视频中的空间和时间误差来评估编码视频。 空间错误可以通过评估每个单独错误的严重性并汇集紧密定位的错误来确定错误收集是否显着。 可以通过评估每个帧的质量然后汇集连续帧来确定时间错误,以确定帧的集合是否具有如果错误在连续帧的序列内持续存在时可能是显着的。 可以用任何常规分析度量来分析帧的质量。 在一个实施例中,可以使用行列度量来分析帧的质量。 计算的分析度量可以被归一化以精确地比较不同的度量计算。