Besides, Moving vector analysis is introduced to compute the digital curvature of the profile.

采用移动向量法求取轮廓曲线的数字曲率。

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So, the position of this point, p, is going to be the same as OP knowing the vector OP from the origin to this moving point.

点p的位置就是，从原点指向这个运动点的向量。

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By using backward difference of space-time intensity correlation function with respect to time delay, the two-dimensional velocity vector of a moving diffuser can be measured.

利用远场时变散斑空-时强度相关函致的有限差商可以测量散射体运动的二维速度矢量。

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