查询词典 birational invariant

First, we have proved that the constraint of local constant gradient angles is equivalent to the minimization of total variation. Based on this, a stronger continuity constraint of gradient angle is presented. The interpolation formula (a 3-degree-PDE) derived from the constraint can ensure the continuity of level lines and reduce the width of edges. The contrast invariant of the regularizer of the formula is also proved.

首先证明了局部恒定的梯度角约束插值等价于总变分最小化；在此基础上，提出一个具有更强连续性的梯度角约束，由这个约束条件导出的三阶偏微分方程使插值的图像既可以保证水平线方向的连续性，又减小图像边缘的宽度；最后证明了插值方程中正则项的对比不变性。

This paper studies the concrete implementation flow of contour-based retrieval based on wavelet transform modulus maxima , multi-scale morphology and invariant relative moments. Also, experimental results are given to validate the feasibility of our strategy and the corresponding retrieval performance is analyzed.

从理论和技术的角度研究了在基于目标形状的遥感影像检索中，应用基于小波变换模极大值和多尺度形态学的边缘检测方法以及基于不变相对矩的轮廓特征描述方法的具体实现技术流程，通过实验充分验证了本文方法的可行性，并分析了检索性能。

Morishima's beautiful generalization of this Marx-Sraffa theorem,which can be stated as giving sufficient conditions for a subset of the goods to keep invariant relative prices as the profit rate changes, belongs to my Class A rather to Class B or Class C.

森岛通夫关于马克思－斯拉法定理很好的归纳，即可以被描述为在利润率改变的情况下为以一系列的商品保持不变的相对价格给出充分的条件，这属于我等级A的范畴而不是等级B或等级C。

Lie symmetry, Noether symmetry, invariant, relative motion, singular system, discrete mechanics

中文关键词 Lie对称性， Noether对称性，守恒量，相对运动，奇异系统，离散力学

Therefore, the change of velocity is an invariant, though only, of course, on condition that the relative motion of our two c.s.

当然，我们的例子是很简单的，是一种直线运动的例子，其中的坐标系可以用一根坚硬的杆来代表。

In reparametrization with arcs length, the curvature and torsion is invariant to translation and rotation transformation. The curvature and torsion are views as feature sets.

无论是二维碎片物体还是三维碎片物体的形状复原问题，皆看成是特殊的物体识别问题，其特殊性就是在处理的方法上采用基于轮廓线的匹配来识别。

If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts, replace the ''with...

如果你有『恒常章节』、『前封面文字』和『后封面文字』，请将「with。。。

The spectrum of the Laplacian on a Riemannian manifold is an importantanalytic invariant and is deeply connected with geometry and topology of a man-ifold.

黎曼流形上Laplace算子的谱是流形上重要的解析不变量，它与流形的几何、拓扑有着深刻的联系。

Coefficient function I1 ,I2 ,I3 of quadratic carve is the invariant under the right - angled coordinate transform.

二次曲线的系数的函数I1，I2，I3是直角坐标变换下的不变量，而系数函数k只是转轴变换下的不变量。

Finally, tests of following crop row showed that shadow removal method based on illumination invariant image satisfied real-time requirement of system and improved the robustness of extracting navigation parameters under variable daylight illuminants.

最后，通过作物行跟踪试验表明，基于光照无关图的阴影去除方法不仅满足了导航实时性的要求，而且使农业机器人在光照变化的情况下导航参数提取的鲁棒性有了更大的提高。

The shaping method of noncircular part and the tool holder's radial motion characters in noncircular turning process are discussed in detail in the thesis.

论文详细研究了非圆零件的成型方法和加工过程中刀架的径向运动规律。

I have not really liked him,I do not like his this kind of disposition.

我没有真的喜欢他，我不喜欢他的这种性格。