gray level difference vector 灰度级差矢量
Difference Vector 差分向量
time difference vector 时间差矢量
grey level difference vector 灰度差矢量
Motion Vector Difference 运动矢量差
displacement vector difference 位移矢量差
vector difference equation 向量差分方程
Standard vector difference 标准向量差分
Now, an important difference between curl here and curl in the plane is that now the curl of a vector field is again a vector field.
和平面上的旋度的一个重要的不同点是，这里向量场的旋度，仍然是一个向量场。
Construct the skeleton tree′s adjacency matrix, then define a Topology Signature Vector and compute the distance of matching node pair by the difference of the TSV.
构造骨架树邻接矩阵并给出拓扑标记向量的定义，用拓扑标记向量之差的二范数作为两个骨架树匹配节点对的距离；
Only if the component vectors are on a straight line will the length of the vector for the sum be equal to the sum of the lengths of these components or to their difference.
只有当几个分矢量在一直线上，那么表示其和的矢量长度才会等于这些分量的长度和或它们的差。
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