Error Concealment for Scalable Video Coding
    5.
    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。

    Method and apparatus for representing moving objects in a sequence of images
    7.
    发明授权
    Method and apparatus for representing moving objects in a sequence of images 失效
    用于表示图像序列中的移动物体的方法和装置

    公开(公告)号:US07400747B2

    公开(公告)日:2008-07-15

    申请号:US10694887

    申请日:2003-10-29

    IPC分类号: G06K9/00

    摘要: A method of representing motion of an object appearing in a sequence of images comprises deriving for each image a set of representative points representing the location of the object, deriving an approximate function representing the trajectory of a representative point in two or more of said sequence of images, and calculating an error value for said approximate function for the representative point for an image, characterised in that the error value is based on the difference between the area of the object as represented by the representative point and the area of the object with the representative point replaced by the respective approximate function value.

    摘要翻译: 表示出现在图像序列中的对象的运动的方法包括为每个图像导出代表对象的位置的一组代表点,导出表示两个或更多个所述序列中的代表点的轨迹的近似函数 图像,并计算图像的代表点的所述近似函数的误差值,其特征在于,误差值基于由代表点表示的对象的面积与具有代表点的对象的面积之间的差异 代表点由相应的近似函数值代替。

    Method and apparatus for compensating for erroneous motion vectors in image and video data
    8.
    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。

    IMAGE ENCODING AND DECODING
    9.
    发明申请
    IMAGE ENCODING AND DECODING 审中-公开
    图像编码和解码

    公开(公告)号:US20090252229A1

    公开(公告)日:2009-10-08

    申请号:US12373270

    申请日:2007-07-10

    申请人: Leszek Cieplinski

    发明人: Leszek Cieplinski

    IPC分类号: H04N7/26

    摘要: An improved MPEG adaptive reference fine granularity scalability encoder and decoder is described. The parameters α and β used to weight difference data during the generation of a prediction error signal in an enhancement layer are modified in dependence upon the magnitude of the values in the difference data.

    摘要翻译: 描述了改进的MPEG自适应参考精细粒度可伸缩性编码器和解码器。 在增强层中产生预测误差信号期间用于加权差分数据的参数α和β根据差异数据中的值的大小进行修改。