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    Optimization techniques for data compression
    3.
    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。

    Video coding
    5.
    发明授权
    Video coding 有权
    视频编码

    公开(公告)号：US08638853B2

    公开(公告)日：2014-01-28

    申请号：US12700581

    申请日：2010-02-04

    申请人： Alexandros Tourapis ,  Feng Wu ,  Shipeng Li

    发明人： Alexandros Tourapis ,  Feng Wu ,  Shipeng Li

    IPC分类号： H04N7/12

    CPC分类号： H04N19/109 ,  H04N19/147 ,  H04N19/176 ,  H04N19/513 ,  H04N19/52 ,  H04N19/56 ,  H04N19/573 ,  H04N19/577

    摘要： Improved video coding is described to encode video data within a sequence of video frames. To this end, at least a portion of a reference frame is encoded to include motion information associated with the portion of the reference frame. At least a portion of a predictable frame that includes video data predictively correlated to said portion of said reference frame is defined based on the motion information. At least said portion of the predictable frame is encoded without including corresponding motion information and including mode identifying data. The mode identifying data indicate that the encoded portion of the predictable frame can be directly derived using at least the motion information associated with the portion of the reference frame.

    摘要翻译： 描述了改进的视频编码以对视频帧序列内的视频数据进行编码。 为此，参考帧的至少一部分被编码以包括与参考帧的该部分相关联的运动信息。 基于运动信息来定义包括与所述参考帧的所述部分预测相关的视频数据的可预测帧的至少一部分。 可预测帧的至少所述部分被编码而不包括对应的运动信息并且包括模式识别数据。 模式识别数据指示可以使用至少与参考帧的部分相关联的运动信息直接导出可预测帧的编码部分。

    Video coding
    6.
    发明授权
    Video coding 有权
    视频编码

    公开(公告)号：US07646810B2

    公开(公告)日：2010-01-12

    申请号：US11275103

    申请日：2005-12-09

    申请人： Alexandros Tourapis ,  Feng Wu ,  Shipeng Li

    发明人： Alexandros Tourapis ,  Feng Wu ,  Shipeng Li

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

    CPC分类号： H04N19/109 ,  H04N19/147 ,  H04N19/176 ,  H04N19/513 ,  H04N19/52 ,  H04N19/56 ,  H04N19/573 ,  H04N19/577

    摘要： Improved video coding is described to encode video data within a sequence of video frames. To this end, at least a portion of a reference frame is encoded to include motion information associated with the portion of the reference frame. At least a portion of a predictable frame that includes video data predictively correlated to said portion of said reference frame is defined based on the motion information. At least said portion of the predictable frame is encoded without including corresponding motion information and including mode identifying data. The mode identifying data indicate that the encoded portion of the predictable frame can be directly derived using at least the motion information associated with the portion of the reference frame.

    摘要翻译： 描述了改进的视频编码以对视频帧序列内的视频数据进行编码。 为此，参考帧的至少一部分被编码以包括与参考帧的该部分相关联的运动信息。 基于运动信息来定义包括与所述参考帧的所述部分预测相关的视频数据的可预测帧的至少一部分。 可预测帧的至少所述部分被编码而不包括对应的运动信息并且包括模式识别数据。 模式识别数据指示可以使用至少与参考帧的部分相关联的运动信息直接导出可预测帧的编码部分。

    Video coding
    9.
    发明授权
    Video coding 有权
    视频编码

    公开(公告)号：US08406300B2

    公开(公告)日：2013-03-26

    申请号：US12474821

    申请日：2009-05-29

    申请人： Alexandros Tourapis ,  Feng Wu ,  Shipeng Li

    发明人： Alexandros Tourapis ,  Feng Wu ,  Shipeng Li

    IPC分类号： H04N11/04

    CPC分类号： H04N19/109 ,  H04N19/147 ,  H04N19/176 ,  H04N19/513 ,  H04N19/52 ,  H04N19/56 ,  H04N19/573 ,  H04N19/577

    摘要： Improved video coding is described to encode video data within a sequence of video frames. To this end, at least a portion of a reference frame is encoded to include motion information associated with the portion of the reference frame. At least a portion of a predictable frame that includes video data predictively correlated to said portion of said reference frame is defined based on the motion information. At least said portion of the predictable frame is encoded without including corresponding motion information and including mode identifying data. The mode identifying data indicate that the encoded portion of the predictable frame can be directly derived using at least the motion information associated with the portion of the reference frame.

    摘要翻译： 描述了改进的视频编码以对视频帧序列内的视频数据进行编码。 为此，参考帧的至少一部分被编码以包括与参考帧的该部分相关联的运动信息。 基于运动信息来定义包括与所述参考帧的所述部分预测相关的视频数据的可预测帧的至少一部分。 可预测帧的至少所述部分被编码而不包括对应的运动信息并且包括模式识别数据。 模式识别数据指示可以使用至少与参考帧的部分相关联的运动信息直接导出可预测帧的编码部分。