Method and apparatus for compensating for erroneous motion vectors in image and video data
    1.
    发明申请
    Method and apparatus for compensating for erroneous motion vectors in image and video data 审中-公开
    用于补偿图像和视频数据中的错误运动矢量的方法和装置

    公开(公告)号:US20050078751A1

    公开(公告)日:2005-04-14

    申请号:US10628385

    申请日:2003-07-29

    IPC分类号: H03M7/36 H04N19/895 H04N7/12

    CPC分类号: H04N19/895 H04N19/51

    摘要: A method of approximating a motion vector for an image block comprises deriving a first set of vectors from motion vectors of neighbouring blocks in the same frame and the corresponding block and its neighbouring blocks in one or more preceding and/or subsequent frames, deriving a set of candidate vectors from one or more of motion vectors of neighbouring blocks in the same frame and the corresponding block and its neighbouring blocks in one or more preceding and/or subsequent frames, analysing said first set of vectors, and selecting one of the candidate vectors on the basis of the analysis.

    摘要翻译: 逼近图像块的运动矢量的方法包括从同一帧中的相邻块的运动矢量以及一个或多个先前和/或后续帧中的相应块及其相邻块导出第一组向量,导出一组 从相同帧中的相邻块的运动矢量中的一个或多个运动向量和一个或多个先前和/或后续帧中的对应块及其相邻块中的候选向量中的一个或多个候选向量分析所述第一组向量,并且选择一个候选向量 在分析的基础上。

    Error Concealment for Scalable Video Coding
    3.
    发明申请
    Error Concealment for Scalable Video Coding 审中-公开
    可扩展视频编码的错误隐藏

    公开(公告)号:US20090220004A1

    公开(公告)日:2009-09-03

    申请号:US12087517

    申请日:2007-01-11

    IPC分类号: H04N11/02

    摘要: A method of deriving replacement block information, such as a replacement motion vector, for a lost or damaged image block in scalable video coding comprises combining information about neighbouring block information in at least the current layer and the corresponding and/or neighbouring blocks in at least one other layer, to derive said replacement block information.

    摘要翻译: 导出可缩放视频编码中的丢失或损坏图像块的替换运动矢量的替换块信息的方法包括至少在当前层中将关于相邻块信息的相关块信息和相应块和/或相邻块组合起来,至少 一个其他层,以导出所述替换块信息。

    Rate adaptive video coding
    5.
    发明申请
    Rate adaptive video coding 审中-公开
    速率自适应视频编码

    公开(公告)号:US20060088094A1

    公开(公告)日:2006-04-27

    申请号:US11226210

    申请日:2005-09-15

    摘要: A method of encoding a sequence of frames for transmission comprises encoding a sequence of frames under different conditions to produce a plurality of encoded bit streams each representing the sequence of frames, for transmission at different bit rates, and storing each of the encoded bit streams in a respective buffer, and outputting a bit stream from a buffer for transmission, and the method further comprises switching between buffers to change the bit rate of the data for transmission, wherein at least one frame to be stored in one buffer is encoded with reference to a frame stored in another buffer.

    摘要翻译: 编码用于传输的帧序列的方法包括在不同条件下对帧序列进行编码以产生多个编码比特流,每个编码比特流表示帧序列,用于以不同比特率传输,并将每个编码比特流存储在 相应的缓冲器,并且从用于发送的缓冲器输出比特流,并且该方法还包括在缓冲器之间切换以改变用于传输的数据的比特率,其中参考将要存储在一个缓冲器中的至少一个帧被编码 一个帧存储在另一个缓冲区中。