Moving picture prediction method, moving picture coding method and apparatus, and moving picture decoding method and apparatus
    6.
    发明授权
    Moving picture prediction method, moving picture coding method and apparatus, and moving picture decoding method and apparatus 有权
    运动图像预测方法,运动图像编码方法和装置以及运动图像解码方法和装置

    公开(公告)号:US09451276B2

    公开(公告)日:2016-09-20

    申请号:US14950484

    申请日:2015-11-24

    Abstract: An image decoding method is provided which includes a time information determination step of determining time information of a current picture, a first reference picture referred to by the current picture and a second reference picture referred to by the current picture; a scaling parameter calculation step of calculating a scaling parameter based on a time distance between the first reference picture and a second reference picture; a weighting coefficient determination step of determining two weighting coefficients based on the scaling parameter; a predictive pixel value generation step of generating a predictive pixel value of the current picture by scaling a pixel value of the first reference picture and a pixel value of the second reference picture using the two weighting coefficients determined in the weighting coefficient determination step; and a decoding step of decoding the current picture using the predictive pixel value.

    Abstract translation: 提供了一种图像解码方法,其包括:确定当前图像的时间信息的时间信息确定步骤,当前图像参考的第一参考图像和由当前图像参考的第二参考图像; 缩放参数计算步骤,基于第一参考图片和第二参考图片之间的时间距离来计算缩放参数; 加权系数确定步骤,基于所述缩放参数来确定两个加权系数; 预测像素值生成步骤,使用加权系数确定步骤中确定的两个加权系数,通过缩放第一参考图像的像素值和第二参考图像的像素值来生成当前图像的预测像素值; 以及解码步骤,使用预测像素值对当前图像进行解码。

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