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- In this paper，two robust digital watermarking algorithms based on image normalization and invariant centroid theory are proposed. 摘要 以图像归一化和不变质心理论为基础提出了两种安全性较高的数字图像水印算法。
- Invariant centroid 不变质心
- The speed of light is an invariant constant. 光速是一个不变常数。
- Such values are read only and invariant. 这些值都是只读和不变的。
- The Document may contain zero Invariant Sections. 文档可以没有固定章节。
- An invariant quantity, function, configuration, or system. 不变量不变的数量、作用、布局或系统
- Identical in all directions; invariant with respect to direction. 同向性的所有方向上都相同的；就方向上来讲不变的
- The column ID of a base table should be invariant under views. 基表的列ID应该在视图下保持不变。
- The path name needs to be compared in an invariant manner. 需要用固定方式对路径名进行比较。
- Identical in all directions;invariant with respect to direction. 同向性的所有方向上都相同的;就方向上来讲不变的
- The results showed that the centroid and ward are better than other methods. 比较发现类平均距离法、离差平方和法要优于其他方法。
- An invariant quantity,function,configuration,or system. 不变量不变的数量、作用、布局或系统
- Document preconditions, postconditions, and invariant conditions. 对前置、后置、不变条件进行文档注释。
- A new GM(1,1) model is given based on response invariant method. 基于响应不变法，提出了一种新的无偏GM(1,1)模型。
- We use signed distance and centroid to defuzzify the total cost in the fuzzy sense in fuzzy inventory without backorder. 利用有号距离和形心将无缺货补货的模糊库存的总成本利用有号距离和形心解模糊化。
- The invariant parts could be moved into a separate table to save space. 可以将不变的部分转移到一个单独的表中。
- In the fully plastic condition, the neutral axis does not necessarily pass through the centroid. 在全塑状态下，中性轴不一定需要通过形心。
- If the Document does not identify any Invariant Sections then there are none. 如果看不出文档中有什么固定章节，那就是没有了。
- Hamiltonian is invariant under any translation of spatial coordinates. 对于一体系，哈密算符在任何空间坐标变换下是不变的。
- A new method to estimate Doppler centroid and Doppler rate applicable to real flight condition is proposed. 该方法设置飞机速率和脉冲重复频率比为常数，保证方位向接收信号均匀空间取样，使用实时最小二乘拟合算法。
