公开(公告)号：US09609343B1

公开(公告)日：2017-03-28

申请号：US14136053

申请日：2013-12-20

Applicant: Google Inc.

Inventor： Yue Chen ,  Debargha Mukherjee

IPC: H04N19/50 ,  H04N19/107

CPC classification number: H04N19/50 ,  H04N19/105 ,  H04N19/107 ,  H04N19/109 ,  H04N19/11 ,  H04N19/147 ,  H04N19/176 ,  H04N19/563 ,  H04N19/593

Abstract: Combining intra-frame and inter-frame prediction is described. A first combined prediction block for a first block is formed by combining weighted pixel values of a first inter prediction block and a first intra prediction block. The weighting is based on the intra prediction mode. A second combined prediction block is formed by selecting a second intra prediction block using a first partitioned area of the first block, selecting a second inter prediction block using a second partitioned area of the second block, the first and second partitioned areas separated by a border at an angle to an orientation of a row or column of pixels, and combining pixel values of the second inter and intra prediction blocks that are weighted by a weighting function based on a distance of a pixel from the border. One of the combined prediction blocks is selected to encode the first block.

公开(公告)号：US20170048553A1

公开(公告)日：2017-02-16

申请号：US14823269

申请日：2015-08-11

Applicant: Google Inc.

Inventor： Debargha Mukherjee ,  Yue Chen ,  Shunyao Li

IPC: H04N19/61 ,  H04N19/184 ,  H04N19/176

CPC classification number: H04N19/61 ,  H04N19/122 ,  H04N19/176 ,  H04N19/184 ,  H04N19/583 ,  H04N19/59

Abstract: Super-transform coding may include identifying a plurality of sub-blocks for prediction coding a current block, determining whether to encode the current block using a super-transform, and super-prediction coding the current block. Super-prediction coding may include generating a super-prediction block for the current block by generating a prediction block for each unpartitioned sub-block of the current block, generating a super-prediction block for each partitioned sub-block of the current block by super-prediction coding the sub-block, and including the prediction blocks and super-prediction blocks for the sub-blocks in a super-prediction block for the current block. Including the prediction blocks and super-prediction blocks for the sub-blocks in a super-prediction block for the current block may include filtering at least a portion of each prediction block and each super-prediction block based on a spatially adjacent prediction block. Super-transform coding may include transforming the super-prediction block for the current block using a corresponding super-transform.

Abstract translation: 超变换编码可以包括识别用于对当前块进行预测编码的多个子块，使用超变换确定是否对当前块进行编码，以及对当前块进行超预测编码。 超预测编码可以包括通过对当前块的每个未分割子块生成预测块来生成当前块的超预测块，通过超级生成当前块的每个分割子块的超预测块 - 对该子块进行预测编码，并且在当前块的超预测块中包括用于子块的预测块和超预测块。 包括用于当前块的超预测块中的子块的预测块和超预测块可以包括基于空间相邻的预测块来过滤每个预测块和每个超预测块的至少一部分。 超变换编码可以包括使用对应的超变换来变换当前块的超预测块。