FINE GRAINED SCALABILITY ORDERING FOR SCALABLE VIDEO CODING
    1.
    发明申请
    FINE GRAINED SCALABILITY ORDERING FOR SCALABLE VIDEO CODING 审中-公开
    精细化的可扩展定标可定量视频编码

    公开(公告)号:US20070223826A1

    公开(公告)日:2007-09-27

    申请号:US11689444

    申请日:2007-03-21

    IPC分类号: G06K9/46

    摘要: Methods, devices, and computer code products for encoding and decoding a video signal involving encoding blocks of the video signal by scan position within a coding cycle in decreasing order to increase the probability that the next symbol will be non-zero. Scalable video decoding techniques can include setting a state variable for a block to a run length if the state variable for the current block is zero otherwise decrementing the state variable if it is not zero. The current coefficient for the block can be set to the terminating value if the state variable is zero otherwise the coefficient can be set to zero if the state variable is not zero.

    摘要翻译: 用于对视频信号进行编码和解码的方法,装置和计算机代码产品,所述视频信号涉及按照编码周期内的扫描位置按照递减顺序增加视频信号的块,以增加下一个符号将不为零的概率。 如果当前块的状态变量为零,则可扩展视频解码技术可以包括将块的状态变量设置为运行长度,否则如果状态变量不为零则递减状态变量。 如果状态变量为零,则块的当前系数可以设置为终止值,否则如果状态变量不为零,则系数可以设置为零。

    Method and apparatus for sub-pixel interpolation for updating operation in video coding
    3.
    发明申请
    Method and apparatus for sub-pixel interpolation for updating operation in video coding 审中-公开
    用于更新视频编码中的操作的子像素插值的方法和装置

    公开(公告)号:US20070110159A1

    公开(公告)日:2007-05-17

    申请号:US11504973

    申请日:2006-08-15

    IPC分类号: H04N11/02 H04N11/04 H04B1/66

    摘要: In the video encoding and decoding of digital video sequence having a prediction operation and an update operation, the update operation includes interpolation to generate energy distributed interpolation. Prediction is carried out on each block based on motion compensated prediction with respect to a reference frame and a motion vector in order to provide a corresponding block of prediction residues. Updating is carried out on a reference video frame based on motion compensated prediction with respect to the block of prediction residues and a reverse direction of the motion vector. The interpolation filter is determined based on the motion vector and the sample values of sub-pixel are interpolated using the block prediction residues by treating the sample values outside the block of prediction residues to be zero. Interpolation is performed along horizontal direction and vertical direction separately using one dimensional interpolation filter.

    摘要翻译: 在具有预测操作和更新操作的数字视频序列的视频编码和解码中,更新操作包括内插以产生能量分布插值。 基于关于参考帧和运动矢量的运动补偿预测在每个块上执行预测,以便提供相应的预测残差块。 基于关于预测残差块的运动补偿预测和运动矢量的反向的参考视频帧进行更新。 基于运动矢量确定内插滤波器,并且通过将预测残差块外的样本值处理为零,使用块预测残差内插子像素的采样值为零。 使用一维插值滤波器分别沿水平方向和垂直方向进行插值。

    System and method for motion prediction in scalable video coding
    4.
    发明申请
    System and method for motion prediction in scalable video coding 审中-公开
    可扩展视频编码中运动预测的系统和方法

    公开(公告)号:US20060012719A1

    公开(公告)日:2006-01-19

    申请号:US10891430

    申请日:2004-07-14

    IPC分类号: H04B1/66 H04N5/14

    摘要: A device, system and method for motion vector prediction in scalable video coding. Embodiments of the present invention may determine a predictive motion vector in scalable video coding by obtaining current layer motion vectors; determining a final base layer motion vector; and calculating a predictive motion vector based on the current layer motion vectors and the final base layer motion vector. A similarity or consistency of neighboring motion vectors at a current layer and a reliability of motion vector prediction using neighboring motion vectors at a base layer may be used to determine the predictive motion vector.

    摘要翻译: 用于可伸缩视频编码中的运动矢量预测的装置,系统和方法。 本发明的实施例可以通过获得当前层运动矢量来确定可伸缩视频编码中的预测运动矢量; 确定最终基层运动矢量; 以及基于当前层运动矢量和最终基层运动矢量来计算预测运动矢量。 可以使用在当前层处的相邻运动矢量的相似性或一致性以及使用基层的相邻运动矢量的运动矢量预测的可靠性来确定预测运动矢量。

    FGS identification in scalable video coding
    5.
    发明授权
    FGS identification in scalable video coding 失效
    可扩展视频编码中的FGS识别

    公开(公告)号:US07756206B2

    公开(公告)日:2010-07-13

    申请号:US11105312

    申请日:2005-04-13

    IPC分类号: H04N7/12

    摘要: A system and method for providing improved FGS identification in scalable video coding. According to the present invention, each FGS enhancement layer is assigned a unique dependency identifier and contains only FGS enhancement information. For subsequent enhancement layers, the base dependency identifier for the subsequent enhancement layers will point to either a base-quality layer or an FGS enhancement layer.

    摘要翻译: 一种用于在可缩放视频编码中提供改进的FGS识别的系统和方法。 根据本发明,每个FGS增强层被分配唯一的相关性标识符,并且仅包含FGS增强信息。 对于随后的增强层,后续增强层的基本依赖性标识符将指向基本质量层或FGS增强层。

    END-OF-BLOCK MARKERS SPANNING MULTIPLE BLOCKS FOR USE IN VIDEO CODING
    6.
    发明申请
    END-OF-BLOCK MARKERS SPANNING MULTIPLE BLOCKS FOR USE IN VIDEO CODING 审中-公开
    最终块标记在视频编码中使用多个块

    公开(公告)号:US20070283132A1

    公开(公告)日:2007-12-06

    申请号:US11696662

    申请日:2007-04-04

    IPC分类号: G06F9/30

    摘要: The present invention involves the use of the FRExt approach for FGS. According to the present invention, an 8×8 data block is de-interleaved and processed as individual 4×4 data blocks, with an additional end-of-8×8-block (EO8B) marker indicating that no more coefficients remain in any of the de-interleaved 4×4 data blocks. The EO8B symbol may be a binary flag. The invention also uses a longer codeword for the EO8B symbol, conveying information about which de-interleaved blocks contain additional coefficients.

    摘要翻译: 本发明涉及使用FRExt方法进行FGS。 根据本发明,将8×8数据块作为单独的4×4数据块进行解交织和处理,附加的8×8块(EO8B)标记指示在任何解交织的4×4中不再有系数 数据块。 EO8B符号可以是二进制标志。 本发明还使用用于EO8B符号的更长的码字,传达关于哪些去交织的块包含附加系数的信息。

    Residual prediction mode in scalable video coding
    7.
    发明申请
    Residual prediction mode in scalable video coding 审中-公开
    可扩展视频编码中的残留预测模式

    公开(公告)号:US20070014349A1

    公开(公告)日:2007-01-18

    申请号:US11446018

    申请日:2006-06-02

    IPC分类号: H04B1/66 H04N11/04 H04N11/02

    摘要: Methods, devices, and computer code products for encoding and decoding a video signal including conditional encoding and decoding of a residual prediction flag for an enhancement layer only of all base layers are discrete layers. If some base layers are not discrete, the residual prediction flag is always encoded and decoded. Encoding and decoding the residual prediction flag can include using contexts which depend on whether the reconstructed prediction residual of the discrete base layers is zero or not.

    摘要翻译: 用于对视频信号进行编码和解码的方法,设备和计算机代码产品,包括仅针对所有基础层的增强层的残留预测标志的条件编码和解码是离散层。 如果一些基本层不是离散的,则残留预测标志总是被编码和解码。 编码和解码残留预测标志可以包括使用取决于离散基础层的重建预测残差是否为零的上下文。

    Method and apparatus for update step in video coding based on motion compensated temporal filtering
    8.
    发明申请
    Method and apparatus for update step in video coding based on motion compensated temporal filtering 审中-公开
    基于运动补偿时间滤波的视频编码中的更新步骤的方法和装置

    公开(公告)号:US20070009050A1

    公开(公告)日:2007-01-11

    申请号:US11402620

    申请日:2006-04-11

    IPC分类号: H04B1/66 H04N11/02 H04N11/04

    摘要: The present invention reduces the complexity in the update step without significantly affecting the coding performance. In the update operation in motion compensated temporal filtering for video coding, an interpolation filter is adaptively selected from a short filter and a long filter so that the update signal can be obtained through the interpolation of prediction residue based on the interpolation filter. A short filter refers to a filter with a relatively small number of filter taps such as two. A long filter refers to a filter with a more than two filter taps.

    摘要翻译: 本发明降低了更新步骤中的复杂性,而不显着影响编码性能。 在用于视频编码的运动补偿时间滤波的更新操作中,从短滤波器和长滤波器自适应地选择插值滤波器,使得可以通过基于内插滤波器的预测残差内插来获得更新信号。 短过滤器是指具有相对较少数量的过滤器抽头(例如两个)的过滤器。 长过滤器是指具有两个以上过滤器抽头的过滤器。

    SWITCHED FILTER UP-SAMPLING MECHANISM FOR SCALABLE VIDEO CODING
    10.
    发明申请
    SWITCHED FILTER UP-SAMPLING MECHANISM FOR SCALABLE VIDEO CODING 审中-公开
    用于可缩放视频编码的切换过滤器抽样机制

    公开(公告)号:US20070217502A1

    公开(公告)日:2007-09-20

    申请号:US11621951

    申请日:2007-01-10

    IPC分类号: H04B1/66

    摘要: An improved switched filter up-sampling mechanism for scalable video coding. A filter switching mechanism of the present invention takes advantage of the best performance of each of the filters in a collaborative manner. The switching process of the present invention can be generalized to more filter choices and potentially relieve the computational complexity due to the added freedom and flexibility of filter choices.

    摘要翻译: 用于可扩展视频编码的改进的切换滤波器上采样机制。 本发明的滤波器切换机构以协作的方式利用每个滤波器的最佳性能。 本发明的切换过程可以推广到更多的过滤器选择,并且由于滤波器选择的附加自由度和灵活性而有可能减轻计算复杂度。