特征函数

After binarization and the adoption of multiple indexes evaluation function for color reverse, characters are segmented on the basis of connected component analysis.

摘 要：通过对连续视频流分析的方法判断并捕获车牌图像帧；基于数学形态学方法和边缘特征分析来进行车牌定位，进行二值化、引入多指标联合评价函数判断反色等处理；最后基于连通体分析的方法切分字符。

First, a features-preserving filtering algorithm for point set surface and surface attributes is developed,which is based on robust statistics.

首先是把鲁棒统计理论应用在了对点采样曲面保护特征的滤波中，并扩展该算法到定义在曲面上的函数的滤波中。

One thing that should be immediately obvious is that this is a runtime feature .

现在，比较明显的一件事情就是虚函数的运行特征。

Energy consumption is the leading character of separating process whose essence of design optimization is the optimization of the balance between energy and economic.

分离过程是以消耗能量为主要特征的过程，其优化设计本质上是能量和经济权衡的优化，而选择合适的目标函数是进行这种权衡优化的重要基础。

The energy of every IMF and the singular value of the IMF matrix were chosen as features. The Shannon and Renyi entropy of the energy and singular value distribution were also extracted.

计算各固有模态函数的能量和矩阵的奇异值，采用Shannon熵和Renyi熵度量能量和奇异值分布，构成原始特征子集。

Reservoir characteristics ; linear programming ; comprehensive evaluation ; quantitative description ; semi-variation function ; k-th spherical model

储集层特征；线性规划；综合评价；定量描述；半变异函数； k阶球状模型

The simulated climate fields were decomposed with the spherical harmonics function and the corresponding spectral analysis was made,thus the spherical harmonics feature of global 500 hPa height and the sea level pressure in several truncations was investigated and the field changes on doubling CO2 were analyzed too.

对模拟的气候场用球谐函数作波谱分析，得到了全球500hPa高度和海平面气压在不同截断时的波谱特征以及由CO2倍增(2×CO2)引起的流场变化。

The relationship between relative yield and relative water use is formulated,based on these data, a optimal irrigation scheduling under sprinkling irrigation condition can be made or the lower level of soil moisture in different growing stage might be teken as the indicator for the scheduling irrifgation in winter wheat.

喷灌条件下土壤水分、硝态氮空间变异特征研究：应用地统计学理论，以半方差函数为工具分析不同灌溉制度下，土壤含水率(0～60cm)和土壤中硝态氮在相应深度的空间分布，用各类模型拟合半方差图，在此基础上应用普通克立格技术估算未知点的土壤含水率，使用最优内插值法绘制土壤含水率和硝态氮在田间的空间分布等值线图。

The calculated results, which include the stationary electron distribution and characteristic time for beams to reach the stationary distributions, are analyzed and discussed.

对计算所得的稳态电子分布函数以及达到稳态分布所需的特征时间进行了分析和讨论。

In this dissertation , the methods of prediction and parameters\' estimation based on stationary multivariate autoregressive models AR(p are studied systematically. Some properties of these methods are formulized.In the first part, it introduce some basal conceptions about multidimensional stationary time series, contained the estimation and property of mean vector and auto-covariance function. Then the stable condition of multidimensional AR models are discussed.

本文主要研究了多维平稳序列自回归模型AR的参数估计及其相关的统计性质，具体内容如下：第一部分，介绍了多维平稳时间序列及其均值向量和协方差阵函数的概念，并引入了多维AR模型及其数字特征，在此基础上给出了模型的平稳性条件。

Do not gum up the work by telling mother what we are going to do .

别告诉母亲我们要干的事，那会把事情搞糟的。

In recent years, application of the partial prestressed concrete beam s is developed.

近年来，随着部分预应力砼梁应用的推广，发现我国规范所采用的名义拉应力法的计算结果不稳定。