Intra prediction modes
    2.
    发明授权
    Intra prediction modes 有权
    帧内预测模式

    公开(公告)号:US09083974B2

    公开(公告)日:2015-07-14

    申请号:US13109129

    申请日:2011-05-17

    摘要: New intra angular prediction modes and methods for decoding are offered for providing greater accuracy when processing predictions of digital video data blocks. One new method considers predicting a current prediction sample by taking the linear interpolation of two previously reconstructed reference samples that lay along a common angular line. Another new method offers a method for making previously unavailable samples from a neighboring block available as reference samples when predicting a current prediction sample. Another new method considers a new combined intra prediction mode that utilizes a local mean to predict a current prediction sample. And a new decoding method offers to rearrange the order in which video data blocks are predicted based on the intra prediction mode used for predicting the video data blocks.

    摘要翻译: 提供用于解码的新的角内预测模式和方法,用于在处理数字视频数据块的预测时提供更高的精度。 一种新方法考虑通过采用沿着公共角度线布置的两个先前重建的参考样本的线性插值来预测当前预测样本。 另一种新方法提供了一种用于在预测当前预测样本时,作为可用作参考样本的相邻块进行先前不可用的样本的方法。 另一种新方法考虑了利用局部均值来预测当前预测样本的新的组合帧内预测模式。 并且新的解码方法提供了基于用于预测视频数据块的帧内预测模式重新排列预测视频数据块的顺序。

    INTRA-PREDICTION METHOD, AND ENCODER AND DECODER USING SAME
    10.
    发明申请
    INTRA-PREDICTION METHOD, AND ENCODER AND DECODER USING SAME 有权
    内部预测方法,以及使用它的编码器和解码器

    公开(公告)号:US20140056352A1

    公开(公告)日:2014-02-27

    申请号:US14113708

    申请日:2012-04-10

    IPC分类号: H04N7/46 H04N7/26

    摘要: The present invention relates to an intra-prediction method and to an encoder and decoder using same. The intra-prediction method according to one embodiment of the present invention comprises the steps of: deriving a prediction mode of a current block; and generating a prediction block with respect to the current block on the basis of the prediction mode of the current block. When the prediction mode of the current block is an intra-angular prediction mode, values of boundary samples from among left boundary samples and upper boundary samples of the prediction block, which are not positioned in a prediction direction of the intra-angular prediction mode, are derived on the basis of reference samples positioned in the prediction direction of the intra-angular prediction mode, and on the basis of adjacent reference samples.

    摘要翻译: 本发明涉及帧内预测方法和涉及使用其的编码器和解码器。 根据本发明的一个实施例的帧内预测方法包括以下步骤:导出当前块的预测模式; 并根据当前块的预测模式生成关于当前块的预测块。 当当前块的预测模式是角内预测模式时,未位于角内预测模式的预测方向的左边界样本和预测块的上边界样本之间的边界样本的值, 是基于位于角内预测模式的预测方向上的参考样本,并且基于相邻参考样本导出的。