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    Optimization techniques for data compression
    32.
    发明授权
    Optimization techniques for data compression 有权
    数据压缩优化技术

    公开(公告)号：US07280700B2

    公开(公告)日：2007-10-09

    申请号：US10462085

    申请日：2003-06-13

    申请人： Alexandros Tourapis ,  Shipeng Li ,  Feng Wu ,  Gary J. Sullivan

    发明人： Alexandros Tourapis ,  Shipeng Li ,  Feng Wu ,  Gary J. Sullivan

    IPC分类号： G06K9/46 ,  H04B1/66

    CPC分类号： H04N19/567 ,  H04N19/103 ,  H04N19/126 ,  H04N19/147 ,  H04N19/149 ,  H04N19/162 ,  H04N19/186 ,  H04N19/19 ,  H04N19/60 ,  H04N19/61

    摘要： Methods and apparatuses are provided relating to the encoding of data, such as, e.g., images, video, etc. For example, certain methods include processing at least a portion of data using a plurality of different quantization functions to produce a plurality of corresponding quantized portions of data, and selectively outputting one of the quantized portions of data based on at least one threshold value. The method may also include dividing initial data into a plurality of portions and classifying the portion of data based on at least one classification characteristic. Here, for example, there may be a threshold value that is associated with the classification characteristic. Additional syntax may be adopted to enable considerably higher compression efficiency by allowing several alternative motion prediction cases. A high efficiency time stamp independent Direct Mode is also provided which considers spatial motion vector prediction as well with stationary temporal predictors.

    摘要翻译： 提供了与诸如图像，视频等的数据的编码相关的方法和装置。例如，某些方法包括使用多个不同的量化函数来处理数据的至少一部分以产生多个对应的量化 数据的部分，并且基于至少一个阈值选择性地输出数据的量化部分之一。 该方法还可以包括将初始数据划分成多个部分，并且基于至少一个分类特征来对数据的部分进行分类。 这里，例如，可以存在与分类特性相关联的阈值。 可以采用额外的语法来通过允许多个替代的运动预测情况来实现相当高的压缩效率。 还提供了高效率时间戳独立直接模式，其考虑空间运动矢量预测以及静态时间预测器。

    Method and apparatus for encoding video content
    33.
    发明授权
    Method and apparatus for encoding video content 有权

    公开(公告)号：US07274407B2

    公开(公告)日：2007-09-25

    申请号：US11171743

    申请日：2005-06-30

    申请人： Gary J. Sullivan

    发明人： Gary J. Sullivan

    IPC分类号： H04N7/18

    CPC分类号： H04N7/08 ,  H04N7/0122

    摘要： A system identifies video data to be encoded as well as multiple display regions associated with a particular video display type. Each of the multiple display regions is associated with a different portion of an image associated with the video data. The video data is encoded such that the encoded video data includes information regarding the multiple display regions. Each of the multiple display regions has an associated display region identifier. Additionally, the system may identify an active region of the video data. The active region may be located anywhere within an image associated with the video data. The video data is encoded such that the encoded video data includes information regarding the active region.

    Compressed timing indicators for media samples
    34.
    发明授权
    Compressed timing indicators for media samples 有权
    媒体样本的压缩时间指标

    公开(公告)号：US07242437B2

    公开(公告)日：2007-07-10

    申请号：US11029159

    申请日：2005-01-04

    申请人： Gary J. Sullivan

    发明人： Gary J. Sullivan

    IPC分类号： H04N5/04

    CPC分类号： H04N21/4305 ,  H04B1/66 ,  H04N7/52 ,  H04N21/23608 ,  H04N21/242 ,  H04N21/4344 ,  H04N21/8547

    摘要： A first frame of data is encoded and a first timestamp associated with the first frame of data is generated. The first timestamp includes complete timing information. The first frame of data and the associated first timestamp is transmitted to a destination. A second frame of data is encoded and a second timestamp associated with the second frame of data is generated. The second timestamp includes a portion of the complete timing information. The second frame of data and the associated second timestamp is then transmitted to the destination. Additional frames of data are encoded and additional timestamps associated with the additional frames of data are generated. The majority of the additional timestamps include a portion of the complete timing information.

    摘要翻译： 编码第一帧数据并生成与第一帧数据相关联的第一时间戳。 第一个时间戳记包括完整的时间信息。 数据的第一帧和相关联的第一时间戳被发送到目的地。 编码第二帧数据，并且生成与第二数据帧相关联的第二时间戳。 第二时间戳包括完整定时信息的一部分。 然后将第二帧数据和相关联的第二时间戳发送到目的地。 编码附加的数据帧，并且生成与附加数据帧相关联的附加时间戳。 大多数附加时间戳包括完整定时信息的一部分。

    Timecoding media samples
    35.
    发明授权
    Timecoding media samples 有权
    Timecoding媒体样本

    公开(公告)号：US07171107B2

    公开(公告)日：2007-01-30

    申请号：US11271766

    申请日：2005-11-10

    申请人： Gary J. Sullivan

    发明人： Gary J. Sullivan

    IPC分类号： H04N5/91

    CPC分类号： H04N21/8547 ,  G11B27/3036

    摘要： Timecoding embodiments are described which, in some embodiments, permit a true time to be ascertained from media samples whose timecodes contain an amount of drift which can arise from having non-integer frame rates.

    摘要翻译： 描述了时间码解码实施例，其在一些实施例中允许从其时间码包含可能由于具有非整数帧速率而产生的漂移量的媒体样本来确定真实时间。

    Methods, systems and data structures for timecoding media samples
    36.
    发明授权
    Methods, systems and data structures for timecoding media samples 有权
    时间编码媒体样本的方法，系统和数据结构

    公开(公告)号：US07167633B2

    公开(公告)日：2007-01-23

    申请号：US11025263

    申请日：2004-12-29

    申请人： Gary J. Sullivan

    发明人： Gary J. Sullivan

    IPC分类号： H04N5/91

    CPC分类号： H04N21/8547 ,  G11B27/3036

    摘要： Timecoding systems, methods and data structures are described which, in some embodiments, permit a true time to be ascertained from media samples whose timecodes contain an amount of drift which can arise from having non-integer frame rates. Inventive methods incorporate the use of an offset parameter that describes a time difference between a timecode and a true time associated with a media sample. The inventive approaches can be incorporated with and used compatibly in connection with current timecoding paradigms such as SMPTE timecode and the like. Further embodiments permit timecoding to take place at the field level of a frame. This can permit true-time calculations to be done to ascertain the true time associated with individual fields of a frame. In addition, other embodiments provide novel counting compensation methods that are directed to reducing the drift that can be associated with media samples that are sampled at non-integer frame rates.

    摘要翻译： 描述了时钟编码系统，方法和数据结构，其在一些实施例中允许从其时间码包含可能由具有非整数帧速率而产生的漂移量的媒体样本确定真实时间。 本发明的方法包括使用偏移参数来描述时间码与与媒体样本相关联的真实时间之间的时间差。 本发明的方法可以结合当前的时间代码范例（例如SMPTE时间码等）并兼容地使用。 另外的实施例允许在帧的场级进行时间编码。 这可以允许进行真实计算以确定与帧的各个字段相关联的真实时间。 此外，其他实施例提供了新颖的计数补偿方法，其旨在减少可以与以非整数帧速率采样的媒体样本相关联的漂移。

    Method and apparatus for encoding video content
    37.
    发明授权
    Method and apparatus for encoding video content 有权

    公开(公告)号：US07023492B2

    公开(公告)日：2006-04-04

    申请号：US09982127

    申请日：2001-10-18

    申请人： Gary J. Sullivan

    发明人： Gary J. Sullivan

    IPC分类号： H04N7/18

    CPC分类号： H04N7/08 ,  H04N7/0122

    摘要： A system identifies video data to be encoded as well as multiple display regions associated with a particular video display type. Each of the multiple display regions is associated with a different portion of an image associated with the video data. The video data is encoded such that the encoded video data includes information regarding the multiple display regions. Each of the multiple display regions has an associated display region identifier. Additionally, the system may identify an active region of the video data. The active region may be located anywhere within an image associated with the video data. The video data is encoded such that the encoded video data includes information regarding the active region.

    Lapped orthogonal vector quantization
    39.
    发明授权
    Lapped orthogonal vector quantization 失效
    研究正交矢量量化

    公开(公告)号：US5805739A

    公开(公告)日：1998-09-08

    申请号：US631644

    申请日：1996-04-02

    申请人： Henrique S. Malvar ,  Gary J. Sullivan ,  Gregory W. Wornell

    发明人： Henrique S. Malvar ,  Gary J. Sullivan ,  Gregory W. Wornell

    IPC分类号： G06T9/00 ,  G06K9/36 ,  G06K9/38

    CPC分类号： G06T9/008

    摘要： A method and apparatus for encoding a sampled signal using a nonscalar vector quantizer. A lapping window operator is applied to blocks of signal samples of length greater than N to produce length-N transform vectors which are then encoded by a nonscalar vector quantizer. The method and apparatus may use or have a window operator that is identical to that of the modulated lapped transform, that is a 2N.times.N matrix operator, that is identical to that of the modulated lapped transform with asymmetrical, orthogonal butterflies, or that has butterfly transmittances given by h�n!=sin�(2n+1).pi./4N!. The method and apparatus may use or have a vector quantizer is an unconstrained mean-square optimized vector quantizer having codewords of length N. The method and apparatus may use or have a vector reconstructor being an inverse of the nonscalar vector quantizer to reconstruct length-N vectors coupled through a transmission channel to received the length-N vectors from the vector quantizer, and a block decoder connected to receive as input the reconstructed length-N vectors from the vector reconstructor and to apply a reconstructor window operator to produce vectors that may be superimposed to generate a reconstruction of the sampled signal. The reconstructor window operator may be the inverse of the lapping window operator.

    摘要翻译： 一种使用非标量矢量量化器对采样信号进行编码的方法和装置。 将研磨窗口操作符应用于长度大于N的信号样本块以产生长度为N的变换向量，然后由非标量向量量化器编码。 该方法和装置可以使用或具有与调制的重叠变换相同的窗口运算符，其是2NxN矩阵运算符，其与具有不对称正交蝴蝶的调制重叠变换的窗口运算符相同，或者具有蝴蝶透明度 由h [n] = sin [（2n + 1）pi / 4N]给出。 该方法和装置可以使用或具有矢量量化器是具有长度为N的码字的无约束均方优化矢量量化器。该方法和装置可以使用或具有矢量重构器，其是非标量矢量量化器的逆，以重建长度N 通过传输信道耦合的矢量，以从矢量量化器接收长度N个矢量;以及块解码器，连接成从矢量重建器接收重建的长度N个矢量，并且应用重构器窗口算子来产生可能为 叠加以产生采样信号的重构。 重建窗口操作符可以是研磨窗口操作符的倒数。