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    Motion vector determination for video coding
    1.
    发明授权
    Motion vector determination for video coding 有权

    公开(公告)号：US09736489B2

    公开(公告)日：2017-08-15

    申请号：US13585423

    申请日：2012-08-14

    申请人： Xianglin Wang ,  Yunfei Zheng ,  Vadim Seregin ,  Marta Karczewicz

    发明人： Xianglin Wang ,  Yunfei Zheng ,  Vadim Seregin ,  Marta Karczewicz

    IPC分类号： H04N19/436 ,  H04N19/52

    CPC分类号： H04N19/436 ,  H04N19/52

    摘要： For each prediction unit (PU) belonging to a coding unit (CU), a video coder generates a candidate list. The video coder generates the candidate list such that each candidate in the candidate list that is generated based on motion information of at least one other PU is generated without using motion information of any of the PUs belonging to the CU. After generating the candidate list for a PU, the video coder generates a predictive video block for the PU based on one or more reference blocks indicated by motion information of the PU. The motion information of the PU is determinable based on motion information indicated by a selected candidate in the candidate list for the PU.

    MOTION VECTOR DETERMINATION FOR VIDEO CODING
    2.
    发明申请
    MOTION VECTOR DETERMINATION FOR VIDEO CODING 有权
    运动矢量确定视频编码

    公开(公告)号：US20130070854A1

    公开(公告)日：2013-03-21

    申请号：US13585423

    申请日：2012-08-14

    申请人： Xianglin Wang ,  Yunfei Zheng ,  Vadim Seregin ,  Marta Karczewicz

    发明人： Xianglin Wang ,  Yunfei Zheng ,  Vadim Seregin ,  Marta Karczewicz

    IPC分类号： H04N7/34

    CPC分类号： H04N19/436 ,  H04N19/52

    摘要： For each prediction unit (PU) belonging to a coding unit (CU), a video coder generates a candidate list. The video coder generates the candidate list such that each candidate in the candidate list that is generated based on motion information of at least one other PU is generated without using motion information of any of the PUs belonging to the CU. After generating the candidate list for a PU, the video coder generates a predictive video block for the PU based on one or more reference blocks indicated by motion information of the PU. The motion information of the PU is determinable based on motion information indicated by a selected candidate in the candidate list for the PU.

    摘要翻译： 对于属于编码单元（CU）的每个预测单元（PU），视频编码器生成候选列表。 视频编码器生成候选列表，使得在不使用属于CU的任何PU的运动信息的情况下生成基于至少一个其他PU的运动信息生成的候选列表中的每个候选。 在生成PU的候选列表之后，视频编码器基于由PU的运动信息指示的一个或多个参考块来生成PU的预测视频块。 PU的运动信息可以基于PU的候选列表中由选择的候选者指示的运动信息来确定。

    Restriction of prediction units in B slices to uni-directional inter prediction
    3.
    发明授权
    Restriction of prediction units in B slices to uni-directional inter prediction 有权
    限制B片中的预测单位到单向帧间预测

    公开(公告)号：US09451277B2

    公开(公告)日：2016-09-20

    申请号：US13628562

    申请日：2012-09-27

    申请人： Xianglin Wang ,  Vadim Seregin ,  Marta Karczewicz

    发明人： Xianglin Wang ,  Vadim Seregin ,  Marta Karczewicz

    IPC分类号： H04N7/32 ,  H04N19/52 ,  H04N19/159 ,  H04N19/176 ,  H04N19/109 ,  H04N19/577

    CPC分类号： H04N19/52 ,  H04N19/109 ,  H04N19/159 ,  H04N19/176 ,  H04N19/577

    摘要： A computing device determines whether a prediction unit (PU) in a B slice is restricted to uni-directional inter prediction. In addition, the computing device generates a merge candidate list for the PU and determines a selected merge candidate in the merge candidate list. If the PU is restricted to uni-directional inter prediction, the computing device generates a predictive video block for the PU based on no more than one reference block associated with motion information specified by the selected merge candidate. If the PU is not restricted to uni-directional inter prediction, the computing device generates the predictive video block for the PU based on one or more reference blocks associated with the motion information specified by the selected merge candidate.

    摘要翻译： 计算装置确定B片中的预测单元（PU）是否被限制为单向帧间预测。 此外，计算装置生成PU的合并候选列表，并确定合并候选列表中所选择的合并候选。 如果PU被限制为单向帧间预测，则计算设备基于与由所选择的合并候选指定的运动信息相关联的不超过一个参考块来生成PU的预测视频块。 如果PU不限于单向帧间预测，则计算设备基于与由所选择的合并候选指定的运动信息相关联的一个或多个参考块生成PU的预测视频块。

    RESTRICTION OF PREDICTION UNITS IN B SLICES TO UNI-DIRECTIONAL INTER PREDICTION
    4.
    发明申请
    RESTRICTION OF PREDICTION UNITS IN B SLICES TO UNI-DIRECTIONAL INTER PREDICTION 有权

    公开(公告)号：US20130202037A1

    公开(公告)日：2013-08-08

    申请号：US13628562

    申请日：2012-09-27

    申请人： Xianglin Wang ,  Vadim Seregin ,  Marta Karczewicz

    发明人： Xianglin Wang ,  Vadim Seregin ,  Marta Karczewicz

    IPC分类号： H04N7/32

    CPC分类号： H04N19/52 ,  H04N19/109 ,  H04N19/159 ,  H04N19/176 ,  H04N19/577

    摘要： A computing device determines whether a prediction unit (PU) in a B slice is restricted to uni-directional inter prediction. In addition, the computing device generates a merge candidate list for the PU and determines a selected merge candidate in the merge candidate list. If the PU is restricted to uni-directional inter prediction, the computing device generates a predictive video block for the PU based on no more than one reference block associated with motion information specified by the selected merge candidate. If the PU is not restricted to uni-directional inter prediction, the computing device generates the predictive video block for the PU based on one or more reference blocks associated with the motion information specified by the selected merge candidate.

    Method and apparatus for coding video and method and apparatus for decoding video accompanied with arithmetic coding
    6.
    发明授权
    Method and apparatus for coding video and method and apparatus for decoding video accompanied with arithmetic coding 有权
    用于编码视频的方法和装置以及伴随算术编码解码视频的方法和装置

    公开(公告)号：US09565455B2

    公开(公告)日：2017-02-07

    申请号：US14130052

    申请日：2012-06-27

    申请人： Vadim Seregin ,  Il-koo Kim

    发明人： Vadim Seregin ,  Il-koo Kim

    IPC分类号： H04N19/13 ,  H04N19/60 ,  H04N7/50 ,  H04N7/60 ,  H04N19/91 ,  H04N19/169 ,  H04N19/157 ,  H04N19/176 ,  H04N19/44 ,  H04N19/593

    CPC分类号： H04N19/13 ,  H04N19/157 ,  H04N19/176 ,  H04N19/1883 ,  H04N19/44 ,  H04N19/593 ,  H04N19/60 ,  H04N19/91

    摘要： A method of decoding a video through symbol decoding includes parsing symbols of image blocks from a received bitstream; classifying a current symbol into a prefix bit string and a suffix bit string based on a threshold value determined according to a size of a current block; performing arithmetic decoding of the prefix bit string and the suffix bit string by using respective arithmetic decoding methods determined for each of the prefix bit string and the suffix bit string; performing inverse binarization of the prefix bit string and the suffix bit string by using respective binarization methods determined for each of the prefix bit string and the suffix bit string; and restoring the image blocks by performing an inverse transformation operation and a prediction operation on the current block by using the current symbol restored through the arithmetic decoding and the inverse binarization.

    摘要翻译： 通过符号解码对视频进行解码的方法包括从接收到的比特流解析图像块的符号; 基于根据当前块的大小确定的阈值，将当前符号分类为前缀位串和后缀位串; 通过使用为每个前缀位串和后缀位串确定的相应的算术解码方法来执行前缀位串和后缀位串的算术解码; 通过使用为每个前缀位串和后缀位串确定的相应的二进制化方法来执行前缀位串和后缀位串的逆二值化; 以及通过使用通过算术解码和逆二值化恢复的当前符号对当前块执行逆变换操作和预测操作来恢复图像块。

    Video-encoding method and apparatus for same and video-decoding method and apparatus for same using a selective scan mode
    10.
    发明授权
    Video-encoding method and apparatus for same and video-decoding method and apparatus for same using a selective scan mode 有权
    用于相同和视频解码方法的视频编码方法和装置以及使用选择性扫描模式的装置

    公开(公告)号：US09414056B2

    公开(公告)日：2016-08-09

    申请号：US13979795

    申请日：2012-01-13

    申请人： Vadim Seregin ,  Jianle Chen

    发明人： Vadim Seregin ,  Jianle Chen

    IPC分类号： H04N7/12 ,  H04N19/129 ,  H04N19/60 ,  H04N19/96

    CPC分类号： H04N19/129 ,  H04N19/136 ,  H04N19/18 ,  H04N19/186 ,  H04N19/60 ,  H04N19/625 ,  H04N19/96

    摘要： Provided are encoding and decoding methods and apparatuses for a video by selectively determining and using a scan mode. The video encoding method includes: generating transformation coefficients by performing transformation based on a transformation unit to encode an image; determining a scan mode, from among a plurality of scan modes, indicating a scanning direction of the generated transformation coefficients, based on characteristics of the transformation coefficients; and determining and outputting an encoding order of the generated transformation coefficients based on the scanning direction of the determined scan mode.

    摘要翻译： 提供了通过选择性地确定和使用扫描模式的用于视频的编码和解码方法和装置。 视频编码方法包括：通过基于变换单元执行变换来编码图像来生成变换系数; 根据所述变换系数的特性，从多个扫描模式中确定表示所生成的变换系数的扫描方向的扫描模式; 以及基于所确定的扫描模式的扫描方向确定并输出所生成的变换系数的编码顺序。