Moving picture predicting method, moving image encoding method and device, and moving image decoding method and device
    3.
    发明授权
    Moving picture predicting method, moving image encoding method and device, and moving image decoding method and device 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:US07542510B2

    公开(公告)日:2009-06-02

    申请号:US10500801

    申请日:2003-09-04

    IPC分类号: H04N7/12 G06K9/36

    摘要: A moving picture prediction method for enabling a calculation amount and a storage capacity to be reduced in a prediction about a moving picture by scaling processing is provided. A method for predicting the value P of Time T from the value P0 of Time T0 and the value P1 of Time T1 includes a step of judging whether it is possible to generate a predictive value with a predetermined significant number of bits by scaling using Time T0, T1 and T (Step S90); a step of predicting the value P from the values P0 and P1 by scaling using Time T0, T1 and T when it is possible to generate a predictive value with the predetermined significant number of bits (Step S92); and a step of predicting the value P from the values P0 and P1 without using Time T0, T1 and T when it is impossible to generate a predictive value with the predetermined significant number of bits (Step S91).

    摘要翻译: 提供一种运动图像预测方法,用于通过缩放处理使关于运动图像的预测中的计算量和存储容量减小。 从时间T0的值P0和时间T1的值P1预测时间T的值P的方法包括以下步骤:通过使用时间T0进行缩放来判断是否可以通过缩放生成具有预定有效位数的预测值 ,T1和T(步骤S90); 当可以产生具有预定有效位数的预测值时,通过使用时间T0,T1和T的缩放来从值P0和P1中预测值P的步骤(步骤S92)。 以及当不可能用预定的有效位数生成预测值时,不使用时间T0,T1和T,从值P0和P1预测值P的步骤(步骤S91)。

    Moving picture prediction method, moving picture coding method and apparatus, and moving picture decoding method and apparatus
    9.
    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:US08553770B2

    公开(公告)日:2013-10-08

    申请号:US13475179

    申请日:2012-05-18

    IPC分类号: H04B1/66 G06K9/36

    摘要: An image decoding method is provided for generating a predictive pixel value of a current picture to be decoded, and decoding the current picture using the predictive pixel value. The method includes a first parameter calculation step of calculating a first parameter corresponding to a distance between the current picture and a first reference picture; a second parameter calculation step of calculating a second parameter corresponding to a distance between the first reference picture and a second reference picture; a judgment step of judging whether or not a value of a third parameter calculated using a value obtained by dividing the first parameter by the second parameter is a value which is represented by a plurality of bits; a predictive pixel value generation step of generating a predictive pixel value of the current picture; and a decoding step of decoding the current picture using the predictive pixel value.

    摘要翻译: 提供一种用于产生要解码的当前图像的预测像素值并使用预测像素值对当前图像进行解码的图像解码方法。 该方法包括:计算与当前图像和第一参考图像之间的距离对应的第一参数的第一参数计算步骤; 第二参数计算步骤,计算与第一参考图片和第二参考图片之间的距离对应的第二参数; 判断步骤,判断使用通过将第一参数除以第二参数获得的值计算的第三参数的值是否是由多个比特表示的值; 预测像素值生成步骤,生成当前画面的预测像素值; 以及解码步骤,使用预测像素值对当前图像进行解码。