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。
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.
最后计算分析了多矩孔菲涅尔衍射的光强分布。
At last the light intensity distribution of Fresnel diffraction at several rectangular apertures is calculated and analyzed.
进而得到了麦克斯韦分子碰撞模型下离子分布函数的16矩近似。
The ion velocity distribution of Maxwell molecule collision model can be obtained using the 16-moment approximation.
本文是从电多极矩的物理意义的考虑,而用增补电荷的办法,推演出分布在小区域内的电荷系统在远处所产生的电势。
Physically in consideration of the multipole moments, by using supplementing charges, there can be derived in this paper the potential at great distances due to a localized charge distribution.
理论结果很好地再现了电荷分布实验数据中呈现的条件矩间的对数关联;
The logarithm correlation between second and third moments of experimental charge distribution is very well reproduced by theory.
简要介绍最大信息熵原理及其概率估计方法,推导出二阶矩意义下的最大熵概率密度分布表达式。
The maximum entropy principle method and the corresponding probability evaluation method are introduced, and the maximum entropy probability distribution expression is deduced in two degree moment.
后者既包括基于广义帕雷托分布(GPD)参数的极大似然估计,又包括矩法估计等。
The latter since include maximum likelihood estimate of the GPD(generalized Pareto distribution ) model parameters to still include moment estimate etc.
最后根据对前面过程的研究得到了推广矩估计量的平滑估计量的渐近分布。
Finally, the asymptotical distribution of the smoothing estimator related to the extended moment estimator is derived by the study of process before.
从颗粒运动的PDF(概率密度分布函数)输运方程出发建立颗粒相的质量、动量和脉动速度二阶矩方程。
Equations of mass, momentum and second moments for particulate phase are derived from a particle PDF (probability distribution function) equation in dilute turbulent sediment-laden flows.
因此得到了推广矩估计量的渐近分布,于是证明了推广估计量的渐近正态性。
Then we derive the asymptotical distribution of the extended moment estimator and prove its asymptotically normality.
本文使用导体截面矩量法提取芯片内互连线电阻和电感频变分布参数。
Conductor cross-section method of moment is applied in extracting resistance and inductance frequency-dependent distributed parameter of IC interconnects.
讨论了指数分布场合下序进应力加速寿命试验的矩估计问题。
This paper presents moment estimation of the progressive stress accelerated life testing under exponential distribution censored samples.
得到了离心泵蜗壳内速度、速度矩、压力等参数的分布,分析了蜗壳内部流动的特征。
The distributions of velocity, velocity moment, pressure and other flow parameters are obtained, and the properties of inner flow inside the volute are also analyzed.
由求解失效概率的改进一次二阶矩法出发,给出了失效概率对中间变量分布参数偏导数的计算公式;
On the basis of the advanced first order and second moment method, the partial derivatives of the failure probability to the distribution parameters of the process variables were formulated.
本文引进了局部分布、局部矩、局部矩法估计、样本局部矩和局部分布的矩确定等概念。
In this paper, some new concepts on the local moment, local distribution and the method of the local moment estimation are proposed.
利用条件矩的性质特征刻画伽玛分布,负二项分布,广义混合指数分布,广义混合几何分布。
By using conditional moments, the author characterized the Gamma, Negative Binomial, Generalized Mixed Exponential and Geometric distributions respectively.
静电相互作用可利用简单点电荷或更精细的包含分布式多极矩(可达到5级)来进行描述。
The electrostatic interactions may be described by simple point charges or by more elaborate descriptions involving distributed multipoles up to rank 5 if required.
通过对颗粒的分布作出一个合理的对数正态分布假设,运用矩方法求解颗粒的通用动力学方程,来研究颗粒的尺寸分布情况。
To study the change of particle size distribution, a general dynamic equation is established based on the moment method and the assumption of a reasonable log-normal size distribution.
夸克的横向性分布的一次矩定义了核子张量荷 。
The first moment of quark transversity distribution defines the tensor charge of nucleon.
针对瑞利分布,在全样本场合下给出了参数的矩估计、极大似然估计和区间估计。
For the Rayleigh distribution, the moment estimate; the maximum likelihood estimate and the interval estimate of the parameter are given based on the full sample.
结果在共轭先验分布的条件下,先验矩、分位数、众数与分位数三种方法确定的先验分布参数结果一致。
Results Under the condition of the conjugate prior distribution, the prior parameters computed by three methods were similar.
用导体截面矩量法提取多导体芯片传输线电阻和电感频变分布参数时,为了使矩量法程序化,提出了几种不同的网络划分方法。
Conductor cross section method of moment was applied in extracting the resistance and inductance frequency dependent distribution parameter of multiple conductor transmission lines of IC.
对指数分布下的双截尾数据和分段数据,给出了其参数矩估计的一种新的方法。
A new method of moment parameter estimation parameter is given by double side censored data and interval data in the exponential distribution.
用矩量法计算了飞机天线及其机身表面的电流分布,推导了飞机天线的辐射方向图。
Using the moment method, the antenna and surface currents of aircraft are calculated. Finally, the radiation pattern of a D-type-no-man aircraft is induced.
数理统计学原理主要包括:参数估计、统计分布类型、分布拟合检验; 工程结构可靠度理论主要介绍了一次二阶矩方法。
Such as parameter estimation types of statistics distribution tests of distribution hypothesis methods of linear-second order moment, ect.
对于颜色特征,计算图像颜色的局部累加直方图,同时提取分块的颜色矩弥补其不包含颜色空间分布关系的缺点。
To represent color feature, local color cumulative histogram is computed, we also extract the color moments of partitions to solve the problem of lacking the spatial knowledge.
六角形节块内的中子通量密度分布采用高次多项式近似表示,最后导出通量矩方程及偏流的响应矩阵方程。应用粗网再平衡和渐近源外推方法加速收敛。
The nodal equations and response matrix equations are derived using higher order polynomial approximations to the spatial dependence of the flux within the hexagonal-z node.
六角形节块内的中子通量密度分布采用高次多项式近似表示,最后导出通量矩方程及偏流的响应矩阵方程。应用粗网再平衡和渐近源外推方法加速收敛。
The nodal equations and response matrix equations are derived using higher order polynomial approximations to the spatial dependence of the flux within the hexagonal-z node.
应用推荐