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    Conversion of monoscopic visual content to stereoscopic 3D
    52.
    发明授权
    Conversion of monoscopic visual content to stereoscopic 3D 有权

    公开(公告)号：US09769460B1

    公开(公告)日：2017-09-19

    申请号：US14805326

    申请日：2015-07-21

    Applicant: Google Inc.

    Inventor： Debargha Mukherjee ,  Meng Wang ,  Chen Wu

    IPC: G06T15/00 ,  H04N13/02

    CPC classification number: H04N13/261 ,  G06T7/40 ,  G06T15/00 ,  G06T2207/10028 ,  H04N2013/0081

    Abstract: A request to convert a two-dimensional image to a three-dimensional image may be received. A feature-to-depth mapping function associated with another three-dimensional image that shares a characteristic with the two-dimensional image that is to be converted to the three-dimensional image may be identified. A depth value for a plurality of pixels of the two-dimensional image may be determined based on the feature-to-depth mapping function associated with the other three-dimensional image. The three-dimensional image may be generated based on the depth value for the plurality of pixels of the two-dimensional image.

    Hybrid transforms in video coding
    54.
    发明授权
    Hybrid transforms in video coding 有权

    公开(公告)号：US09674530B1

    公开(公告)日：2017-06-06

    申请号：US13874412

    申请日：2013-04-30

    Applicant: Google Inc.

    Inventor： Ronald Sebastiaan Bultje ,  Debargha Mukherjee ,  Jingning Han

    IPC: H04N7/30 ,  H04N19/61 ,  H04N19/176

    CPC classification number: H04N19/00793 ,  H04N19/12 ,  H04N19/157 ,  H04N19/176

    Abstract: A block of video data can be encoded using intra prediction followed by transforming the generated residual block where the transform size is different from the prediction size. A plurality of transform modes for the residual block is provided whereby the transform subblocks of the residual block are transformed using horizontal and vertical one-dimensional transform types. The transform types may be selected such that their base function corresponds to a pattern in the data of the generated residual block resulting from the intra prediction mode. As a result, the position of each block relative to the peripheral pixels used to generate a prediction block for the block may be used to select the transform types.

    Video coding using compound prediction
    56.
    发明授权
    Video coding using compound prediction 有权

    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.

    SUPER-TRANSFORM VIDEO CODING
    57.
    发明申请
    SUPER-TRANSFORM VIDEO CODING 有权
    超变换视频编码

    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。

    COMPRESSING AND REPRESENTING MULTI-VIEW VIDEO
    58.
    发明申请
    COMPRESSING AND REPRESENTING MULTI-VIEW VIDEO 有权
    压缩和表示多视图视频

    公开(公告)号：US20160112705A1

    公开(公告)日：2016-04-21

    申请号：US14519006

    申请日：2014-10-20

    Applicant: GOOGLE INC.

    Inventor： Debargha Mukherjee

    IPC: H04N19/597 ,  H04N19/94 ,  H04N19/593 ,  H04N19/61 ,  H04N19/119 ,  H04N19/124

    CPC classification number: H04N19/17 ,  H04N19/12 ,  H04N19/124 ,  H04N19/154 ,  H04N19/167 ,  H04N19/597 ,  H04N19/61

    Abstract: In a general aspect, a method includes determining a tile position in a frame of a spherical video based on a view perspective, selecting a first portion of the frame of the spherical video as a first two dimensional tile based on the tile position, selecting a plurality of second two dimensional tiles from a second portion of the frame of the spherical video, the second portion of the frame surrounding the first portion of the frame and extending away from the first portion of the frame, encoding the first two dimensional tile using a first quality, encoding the plurality of second two dimensional tiles using at least one second quality, and transmitting a packet, as a streaming spherical video, the packet including the encoded first two dimensional tile and the plurality of encoded second two dimensional tiles.

    Abstract translation: 在一般方面，一种方法包括：基于视角透视确定球形视频的帧中的瓦片位置，基于瓦片位置选择球形视频的帧的第一部分作为第一二维瓦片，选择 来自球形视频的帧的第二部分的多个第二二维瓦片，框架的第二部分围绕框架的第一部分并且远离框架的第一部分延伸，使用第一二维瓦片 第一质量，使用至少一个第二质量对所述多个第二二维瓦片进行编码，以及作为流式球面视频发送包括所述经编码的第一二维瓦片和所述多个编码的第二二维瓦片的分组。

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