The use of moments for image analysis is straightforward if we consider a binary or gray level image segment as a two-dimensional density distribution function.
若把二值图或灰度图看作是二维密度分布函数，就可把矩技术应用于图像分析中。
This paper analyzes the probability density distribution of the non-soluble deposit density, and hence deduces a combined probability density distribution function.
笔者分析了灰密的概率密度分布，并推导出盐密与灰密的联合概率密度函数。
Figure 1 shows a typical normal probability density function, so called because most observations fall into this sort of distribution.
图1显示了一个典型的正态概率分布函数，这样命名是因为绝大多数值都属于这个分布范围内。
A distribution of air pressure and the mass of a given volume of air such that the air density is not a function only of atmospheric pressure.
一种气压的分布情况，其中给定体积内的空气质量，即空气的密度，不仅仅是气压的函数。
A distribution of air pressure and the mass of a given volume of air such that the air density is a function of only atmospheric pressure.
气压的-种分布情况，给定体积内空气质量，即空气的密度，仅仅是气压的函数。
The method not only would be effective to describe the inter-frame correlation information, but overcome tie of the state probability density function being mixture Gauss distribution.
它不仅能有效地在语音识别中引入帧间相关信息，而且能克服状态输出概率密度函数为混合高斯分布的束缚。
We can talk about the wave function squared, the probability density, or we can talk about the radial probability distribution.
我们可以讨论它，波函数的平方，概率密度，或者可以考虑它的径向概率分布。
The continuous ion exchange process was analysed through the concept of probability density and conversion distribution function.
引用概率密度的概念，即转化率分布密度函数对连续离子交换过程进行分析。
This paper points out that we can use the density function of the Gaussian distribution to set a thinned array, extending the covariance matrix will advance the gain clearly.
提出利用高斯随机分布的密度函数设置稀疏阵列，在稀疏阵列得到的协方差矩阵经扩展后，增益有了明显的提高。
The loads and the distribution of stress amplitude frequency are obtained by cycle count and reliable data for fatigue design are provided by probability density function fit.
用循环计数法求出载荷及应力幅频率分布，用概率密度函数拟合，为疲劳设计提供可靠性高的数据资。
By using the unified colored noise approximation method, the master equation for probability density, the steady state probability distribution function and its extrema equation are derived.
讨讼色泊松噪声驱动系统，利用统一色噪声近似方法，得到系统几率密度主方程，定态几率分布函数及其极值方程。
In this paper, a formula of ground settlement around deep excavation is proposed based on the normal distribution of density function.
本文提出了按正态分布密度函数计算深基坑开挖引起的地表沉降值的公式。
This paper points out that a thinned array can be set with the density function of the Gaussian distribution, after the extending of covariance matrix the gain can be increased clearly.
提出利用高斯随机分布的密度函数设置稀疏阵列，稀疏阵列得到的协方差矩阵经扩展后，增益会有明显的提高。
An introduction is Made of the method of using the weight of probability density function of error distribution law to conduct anti-error estimation.
文中主要介绍了利用误差分布律概率密度函数定权来进行抗差估计的一种方法。
Bidirectional reflectance distribution function (BRDF) models treat plant density and optical properties differently and, therefore, can help to assess plant condition objectively.
二向反射分布函数BRDF模型把植物密度和光学特性区别对待，因而它有助于植物状况的客观评估。
The probability density function, cumulative distribution function, average level crossing rate and average fade duration of each composite fading channel are analyzed, and some uniform expression.
给出了各种复合衰落的概率密度函数、累积分布函数、平均电平交叉率、平均衰落时间的统一表达式。
The diving depth distribution density function of an actual submarine or submersible can be determined by considering all the factors of the design parameters, task and action area.
可根据潜艇的设计参数、任务及航行区域等因素来选取最可能的分布形式获得潜深分布密度函数。
Diffusion probability density function in fractals is described by stable distribution.
物质在分形结构中的扩散密度分布函数属于稳定分布。
When a inverse function of monotone function can not show the explicit formula, the distribution density curve of continuous randon variable can be gained with a parametric equation.
当单调函数的反函数不能显性表示时，连续型随机变量的分布密度曲线仍可通过参数方程的形式获得。
A distribution density function used to express the drop size distribution is obtained by means of mathematical statistics.
用数理统计的方法得到了描绘粒度分布的分布密度函数。
The function on signal amplitude density distribution is clearly defined.
明确给出了信号幅值密度分布函数的定义。
The Weibull distribution is used to describe the probability density function of voltage-tolerance curve.
用威布尔分布作为元件电压耐受曲线的概率描述形式。
The generalized density function of the singular normal distribution is also deducted in this paper.
定义了奇异正态分布的广义密度函数。
SLC uses a multiplayer network to estimate the distribution function of the training samples and obtains density by taking derivative.
该算法运用多层感知器估计训练样本的分布函数，然后求导得到概率密度。
It is demonstrated that the function is equal to the probability density function and several examples of the relative distribution function are given.
文中论证了它与概率密度分布函数的等价性、列举了一些相对分布函数实例。
Based on Tchebycheff distribution and Taylor distribution, this paper presents a new amplitude distribution-normal distribution, the density function of which is used to design an antenna array.
本文在切比雪夫分布和泰勒分布的基础上，提出了一种新的振幅分布即正态分布，并利用正态分布密度函数来设计阵列天线。
Gauss distribution function was employed to describe the relation between the density of nucleation sites and the temperature and was integrated to get the grain density at a given undercooling.
通过高斯分布函数描述形核质点密度随温度的分布关系，在给定过冷度时对分布函数求积分可得该时刻的形核密度。
Articles about the theory of "distribution function of surface charge density" are reviewed and that this theory is incorrect is argued from viewpoint of symmetry.
文摘：从对称性角度出发讨论了导体表面的电荷分布问题，并对“电荷密度分布函数”的理论作了评述。
It is verified that in the function of normal distribution can be expressed the density law of the rock structure crevice group and the calculation error is minor.
证明用正态分布函数能表示岩石构造裂隙组合的疏密规律，且计算误差小。
The equations of the density function of residence time distribution, the axial growth of the velocity half - radius, the axial decay of radial maximum jet ve...
给出了停留时间分布密度函数、无因次半速度半径轴向增长、径向射流最大速度轴向衰减和径向速度分布计算公式。
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