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    INTRA PREDICTION MODE SIGNALING FOR FINER SPATIAL PREDICTION DIRECTIONS
    2.
    发明申请
    INTRA PREDICTION MODE SIGNALING FOR FINER SPATIAL PREDICTION DIRECTIONS 审中-公开
    内部预测模式信号用于空间预测方向

    公开(公告)号：US20110317757A1

    公开(公告)日：2011-12-29

    申请号：US13166713

    申请日：2011-06-22

    Applicant: Muhammed Z. Coban ,  Marta Karczewicz

    Inventor： Muhammed Z. Coban ,  Marta Karczewicz

    IPC: H04N7/32 ,  H04N7/26

    CPC classification number: H04N19/19 ,  H04N19/105 ,  H04N19/119 ,  H04N19/176 ,  H04N19/196 ,  H04N19/197 ,  H04N19/46 ,  H04N19/463 ,  H04N19/593 ,  H04N19/96

    Abstract: A video encoder selects a prediction mode for a current video block from a plurality of prediction modes that includes both main modes and finer directional intra spatial prediction modes, also referred to as non-main modes. The video encoder may be configured to encode the selection of the prediction mode of the current video block based on prediction modes of one or more previously encoded video blocks of the series of video blocks. The selection of a non-main mode can be coded as a combination of a main mode and a refinement to that main mode. A video decoder may also be configured to perform the reciprocal decoding function of the encoding performed by the video encoder. Thus, the video decoder uses similar techniques to decode the prediction mode for use in generating a prediction block for the video block.

    Abstract translation: 视频编码器从包括主模式和更精细的定向帧内空间预测模式的多个预测模式中选择当前视频块的预测模式，也称为非主模式。 视频编码器可以被配置为基于一系列视频块的一个或多个先前编码的视频块的预测模式来对当前视频块的预测模式的选择进行编码。 非主模式的选择可以被编码为主模式和对主模式的细化的组合。 视频解码器还可以被配置为执行由视频编码器执行的编码的倒数解码功能。 因此，视频解码器使用类似的技术来解码用于生成视频块的预测块的预测模式。

    Efficient transcoding of B-frames to P-frames
    3.
    发明授权
    Efficient transcoding of B-frames to P-frames 失效
    将B帧有效的代码转换为P帧

    公开(公告)号：US08687685B2

    公开(公告)日：2014-04-01

    申请号：US12759563

    申请日：2010-04-13

    Applicant: Muhammed Z. Coban ,  Marta Karczewicz ,  Rahul P. Panchal ,  Seyfullah H Oguz ,  Amit Rohatgi

    Inventor： Muhammed Z. Coban ,  Marta Karczewicz ,  Rahul P. Panchal ,  Seyfullah H Oguz ,  Amit Rohatgi

    IPC: H04N7/12 ,  H04B1/66

    CPC classification number: H04N19/40 ,  H04N19/124 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46 ,  H04N19/48 ,  H04N19/61 ,  H04N19/619

    Abstract: Techniques are described for efficient transcoding from a first format that supports I-units, P-units and B-units to a second format that supports I-units and P-units but does not support the B-units. In particular, techniques are described for converting B-frames or B-slices of the first format into P-frames or P-slices of the second format. The techniques avoid the need to decode and re-encode that frames or slices. Instead, residuals associated with the B-video blocks in the first format are augmented and made to be dependent upon only one of the two lists associated with the B-video blocks so that such B-video blocks in the first format can be redefined as P-video blocks in the second format.

    Abstract translation: 描述了从支持I单元，P单元和B单元的第一格式到支持I单元和P单元但不支持B单元的第二格式的有效代码转换的技术。 特别地，描述了将第一格式的B帧或B片转换成第二格式的P帧或P片的技术。 这些技术避免了对该帧或片段进行解码和重新编码的需要。 相反，与第一格式的B视频块相关联的残差被增加，并且使得仅依赖于与B视频块相关联的两个列表中的一个列表，使得第一格式的这种B视频块可以被重新定义为 第二格式的P视频块。

    LOW COMPLEXITY B TO P-SLICE TRANSCODER
    4.
    发明申请
    LOW COMPLEXITY B TO P-SLICE TRANSCODER 审中-公开
    低复杂度B到P-SLICE TRANSCODER

    公开(公告)号：US20100329338A1

    公开(公告)日：2010-12-30

    申请号：US12491894

    申请日：2009-06-25

    Applicant: Muhammed Z. Coban ,  Marta Karczewicz ,  Hongqiang Wang

    Inventor： Muhammed Z. Coban ,  Marta Karczewicz ,  Hongqiang Wang

    IPC: H04N7/26

    CPC classification number: H04N19/40 ,  H04N19/48 ,  H04N19/61 ,  H04N19/70

    Abstract: A system and method for transcoding compressed multimedia video is described. Particularly, a system and method for converting Bi-Predictive frame to transcoded Predictive frames, is disclosed. Present embodiments accomplish this conversion with minimal additional error, thereby providing an efficient means for maintaining video quality even after transcoding.

    Abstract translation: 描述了用于对压缩的多媒体视频进行代码转换的系统和方法。 特别地，公开了一种用于将双预测帧转换为代码转换的预测帧的系统和方法。 本实施例以最小的附加误差来实现该转换，由此提供即使在转码之后维持视频质量的有效手段。

    CODING MOTION PREDICTION DIRECTION IN VIDEO CODING
    6.
    发明申请
    CODING MOTION PREDICTION DIRECTION IN VIDEO CODING 有权
    编码运动预测方向在视频编码

    公开(公告)号：US20120027088A1

    公开(公告)日：2012-02-02

    申请号：US13179400

    申请日：2011-07-08

    Applicant: Wei-Jung Chien ,  Peisong Chen ,  Xianglin Wang ,  Marta Karczewicz ,  Ying Chen ,  Muhammed Z. Coban

    Inventor： Wei-Jung Chien ,  Peisong Chen ,  Xianglin Wang ,  Marta Karczewicz ,  Ying Chen ,  Muhammed Z. Coban

    IPC: H04N7/32

    CPC classification number: H04N19/52 ,  H04N19/109 ,  H04N19/114 ,  H04N19/115 ,  H04N19/13 ,  H04N19/159 ,  H04N19/162 ,  H04N19/174 ,  H04N19/176 ,  H04N19/177 ,  H04N19/196 ,  H04N19/46 ,  H04N19/463 ,  H04N19/573 ,  H04N19/577 ,  H04N19/61 ,  H04N19/70 ,  H04N19/91

    Abstract: This disclosure relates to techniques for reducing a cost of coding prediction information in video coding. Video blocks in a generalized P/B (GPB) frame are encoded using up to two motion vectors calculated from reference pictures in two separate reference picture lists that are identical. When one of the reference picture lists is preferred over the other reference picture list, the preferred reference picture list may be used for unidirectional prediction, by default. When a GPB frame is enabled such that the first and second reference picture lists are identical, either of the first and second reference picture lists may be used for unidirectional prediction. The techniques include coding one or more syntax elements indicating that a video block is coded using one of the unidirectional prediction mode with respect to a reference picture in a reference picture list and the bidirectional prediction mode using less than two bits.

    Abstract translation: 本公开涉及用于降低视频编码中的预测信息编码成本的技术。 广义P / B（GPB）帧中的视频块使用相同的两个单独参考图片列表中的参考图片计算的最多两个运动矢量进行编码。 当参考图像列表中的一个优于另一个参考图像列表时，默认情况下优选的参考图像列表可用于单向预测。 当启用GPB帧使得第一和第二参考图片列表相同时，第一和第二参考图片列表中的任一个可以用于单向预测。 这些技术包括编码一个或多个语法元素，其指示使用单向预测模式中的一个相对于参考图像列表中的参考图像和使用少于两个比特的双向预测模式来编码视频块。

    EFFICIENT TRANSCODING OF B-FRAMES TO P-FRAMES
    7.
    发明申请
    EFFICIENT TRANSCODING OF B-FRAMES TO P-FRAMES 失效
    B框架对P框架的有效转移

    公开(公告)号：US20100260262A1

    公开(公告)日：2010-10-14

    申请号：US12759563

    申请日：2010-04-13

    Applicant: Muhammed Z. Coban ,  Marta Karczewicz ,  Rahul P. Panchal ,  Seyfullah Halit Oguz ,  Amit Rohatgi

    Inventor： Muhammed Z. Coban ,  Marta Karczewicz ,  Rahul P. Panchal ,  Seyfullah Halit Oguz ,  Amit Rohatgi

    IPC: H04B1/66

    CPC classification number: H04N19/40 ,  H04N19/124 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46 ,  H04N19/48 ,  H04N19/61 ,  H04N19/619

    Abstract: This disclosure describes techniques for efficient transcoding from a first format that supports I-units, P-units and B-units to a second format that supports I-units and P-units but does not support the B-units. In particular, this disclosure provides techniques for converting B-frames or B-slices of the first format into P-frames or P-slices of the second format. The techniques avoid the need to decode and re-encode that frames or slices. Instead, residuals associated with the B-video blocks in the first format are augmented and made to be dependent upon only one of the two lists associated with the B-video blocks so that such B-video blocks in the first format can be redefined as P-video blocks in the second format.

    Abstract translation: 本公开描述了用于从支持I单元，P单元和B单元的第一格式有效地转码为支持I单元和P单元但不支持B单元的第二格式的技术。 特别地，本公开提供了用于将第一格式的B帧或B片转换成第二格式的P帧或P片的技术。 这些技术避免了对该帧或片段进行解码和重新编码的需要。 相反，与第一格式的B视频块相关联的残差被增加，并且使得仅依赖于与B视频块相关联的两个列表中的一个列表，使得第一格式的这种B视频块可以被重新定义为 第二格式的P视频块。

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