利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

495 条记录 (耗时 0.035 秒)

    VIDEO CODING USING MAPPED TRANSFORMS AND SCANNING MODES
    1.
    发明申请
    VIDEO CODING USING MAPPED TRANSFORMS AND SCANNING MODES 审中-公开
    使用映射变换和扫描模式进行视频编码

    公开(公告)号：US20120170649A1

    公开(公告)日：2012-07-05

    申请号：US13336682

    申请日：2011-12-23

    申请人： Peisong Chen ,  Yunfei Zheng ,  Rajan Laxman Joshi ,  Muhammed Zeyd Coban ,  Marta Karczewicz

    发明人： Peisong Chen ,  Yunfei Zheng ,  Rajan Laxman Joshi ,  Muhammed Zeyd Coban ,  Marta Karczewicz

    IPC分类号： H04N7/50 ,  H04N7/30

    CPC分类号： H04N19/60 ,  H04N19/122 ,  H04N19/129 ,  H04N19/147 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46

    摘要： A video encoder may transform residual data by using a transform selected from a group of transforms. The transform is applied to the residual data to create a two-dimensional array of transform coefficients. A scanning mode is selected to scan the transform coefficients in the two-dimensional array into a one-dimensional array of transform coefficients. The combination of transform and scanning mode may be selected from a subset of combinations that is based on an intra-prediction mode. The scanning mode may also be selected based on the transform used to create the two-dimensional array. The transforms and/or scanning modes used may be signaled to a video decoder.

    摘要翻译： 视频编码器可以通过使用从一组变换中选择的变换来变换残差数据。 将变换应用于残差数据以创建变换系数的二维阵列。 选择扫描模式以将二维阵列中的变换系数扫描成变换系数的一维阵列。 可以从基于帧内预测模式的组合的子集中选择变换和扫描模式的组合。 也可以基于用于创建二维阵列的变换来选择扫描模式。 所使用的变换和/或扫描模式可以被通知给视频解码器。

    PIXEL LEVEL ADAPTIVE INTRA-SMOOTHING
    8.
    发明申请
    PIXEL LEVEL ADAPTIVE INTRA-SMOOTHING 有权
    像素水平自适应平滑

    公开(公告)号：US20120195378A1

    公开(公告)日：2012-08-02

    申请号：US13267762

    申请日：2011-10-06

    申请人： Yunfei Zheng ,  Muhammed Zeyd Coban ,  Marta Karczewicz

    发明人： Yunfei Zheng ,  Muhammed Zeyd Coban ,  Marta Karczewicz

    IPC分类号： H04N7/32

    CPC分类号： H04N19/85 ,  H04N19/105 ,  H04N19/117 ,  H04N19/136 ,  H04N19/182 ,  H04N19/593 ,  H04N19/80

    摘要： This disclosure describes intra-smoothing techniques for intra-coding of video data. In one example, a video encoder is configured to determine a plurality of prediction samples for intra-predictive coding of a block to be coded in a video frame, calculate a local statistic for a first prediction sample of the prediction samples, select a filter from a plurality of filters based on the local statistic, and apply the selected filter to the first prediction sample. The video encoder may also be configured to calculate at least one local statistic for each prediction sample of the prediction samples, select a filter from a plurality of different filters based on the at least one local statistic for each prediction sample, and apply each selected filter to the corresponding prediction sample to generate the filtered version of the prediction sample. Embodiments further include video decoders and method of decoding encoded video signals.

    摘要翻译： 本公开描述了用于视频数据的帧内编码的帧内平滑技术。 在一个示例中，视频编码器被配置为确定用于在视频帧中要编码的块的预测编码的多个预测样本，计算预测样本的第一预测样本的局部统计量，从 基于所述局部统计量的多个过滤器，并将所选择的过滤器应用于所述第一预测样本。 视频编码器还可以被配置为针对预测样本的每个预测样本计算至少一个局部统计量，基于每个预测样本的至少一个局部统计量从多个不同的滤波器中选择滤波器，并且应用每个选择的滤波器 到相应的预测样本以生成预测样本的滤波版本。 实施例还包括解码编码视频信号的视频解码器和方法。

    USING A MOST PROBABLE SCANNING ORDER TO EFFICIENTLY CODE SCANNING ORDER INFORMATION FOR A VIDEO BLOCK IN VIDEO CODING
    9.
    发明申请
    USING A MOST PROBABLE SCANNING ORDER TO EFFICIENTLY CODE SCANNING ORDER INFORMATION FOR A VIDEO BLOCK IN VIDEO CODING 审中-公开
    使用最可能的扫描命令有效地为视频编码中的视频块进行扫描订单信息

    公开(公告)号：US20120163456A1

    公开(公告)日：2012-06-28

    申请号：US13332054

    申请日：2011-12-20

    申请人： Muhammed Zeyd Coban ,  Yunfei Zheng ,  Joel Sole Rojals ,  Marta Karczewicz

    发明人： Muhammed Zeyd Coban ,  Yunfei Zheng ,  Joel Sole Rojals ,  Marta Karczewicz

    IPC分类号： H04N7/32

    CPC分类号： H04N19/157 ,  H04N19/129 ,  H04N19/13 ,  H04N19/176 ,  H04N19/196 ,  H04N19/46 ,  H04N19/463 ,  H04N19/70

    摘要： In one example, an apparatus is disclosed for coding coefficients associated with a block of video data during a video coding process, the apparatus comprising a video coder configured to code information that identifies a scanning order associated with the block, wherein to code the information that identifies the scanning order associated with the block, the video coder is configured to determine a most probable scanning order for the block, and code an indication of whether the scanning order associated with the block is the most probable scanning order. In another example, to code the information that identifies the scanning order associated with the block, the video coder is further configured to, in the event the scanning order associated with the block is not the most probable scanning order, code an indication of the scanning order associated with the block.

    摘要翻译： 在一个示例中，公开了一种用于在视频编码过程期间对与视频数据块相关联的系数进行编码的装置，该装置包括视频编码器，该视频编码器被配置为对与块相关联的扫描顺序进行编码的信息，其中， 识别与块相关联的扫描顺序，视频编码器被配置为确定块的最可能的扫描顺序，并且编码与块相关联的扫描顺序是否是最可能的扫描顺序的指示。 在另一示例中，为了对识别与该块相关联的扫描顺序的信息进行编码，视频编码器还被配置为在与该块相关联的扫描顺序不是最可能的扫描顺序的情况下，编码扫描的指示 与块相关联的顺序。