随机场

The application of Karhunen-Loeve expansion to simulating the soil parameters random field is researched;and the characteristics of the KL decomposition are analyzed;and the Galerkin finite element method is adopted to solve the integral equation numerically in the irregular region and for arbitrary covariance function and to simulate the anisotropic conductivity field.

研究了Karhunen-Loeve展开在土性参数随机场模拟中的应用，分析了KL展开的特点，针对不规则区域和任意类型协方差函数提出了积分方程的Galerkin数值解法，模拟了土壤渗透系数各向异性随机场。

Diffusion process is a Gaussian process, which makes it reasonable to model DTI image as Gaussian markov random field.

扩散过程是一个高斯马尔可夫过程，论文提出了用高斯马尔可夫随机场对DTI图像进行建模。

Numerical solution of the model is maed by using Monte-Carlo sampling method.Its solution is astochastic field. It is showed by a real case that the model can describe the main trend and changing range ofpollutant'sconcentration at any calculating point,and the probability is added to the isopleth of the pollutant'sconcentration.

该随机模型的解是一个随机场，实例计算表明，它的解能够反映任一计算点的浓度变化趋势及范围，并能够给程度等值线附加上概率的意义，表现了在不确定因素的影响下，污染带随机变化的情况。

In this paper,a video object segmentation algorithm based on Markov Random Field using wavelet transform is proposed.

马尔可夫随机场（Markov Random Field，MRF）理论已经被广泛地应用于视频图像的分割。

Taking the regional seismicity energy as the random function of space and time, the features of small seismicity field in Ningxia and its neighborhood region are studied by the analytical method of natural orthogonal function expansion.

地震释放能量是地震活动的一个本质要素，可看成是空间和时间坐标的随机函数，这个随机函数可称为地震活动能量随机场，或称为地震能量场。

Recent research demonstrates that terrain change is essentially random and it can be modeled as a random field.

近来的研究表明，地形表面在本质上是随机的，可以将其模型化为一个随机场。

Based on Markov random field,an improved GA image restoration method is presented.

本文基于马尔可夫随机场，提出了改进的遗传图象恢复方法。

Whole image is seen as a discrete random field, each pixel is a random variable.

整幅图像被看作是一个离散的随机场，每个像素都是一个随机变量。

The local averaging method is used to discretize the random field, correlated random variables are transformed to a set of uncorrelated normalized random variables, combining viscoelastic stochastic finite element method with H-L algorithm, the reliability of solid propellant grain is studied with different random parameters.

为了讨论各类随机因素对药柱结构可靠性的影响，采用局部平均法离散参数随机场，并通过相关结构分解成归一化的独立随机变量，将可靠度指标算法和粘弹性随机有限元法相结合，进行了固体推进剂药柱的结构可靠性分析。

Manual annotation,model building and analysis,and extraction tools serve as visual module; Support Vector Machine,Conditional Random Field are integrated as algorithms.

它集成了"手工标注"，"抽取结果分析与比较"，"应用演示输出"三个可视化工具和"支持向量机"，"条件随机场"两种机器学习算法。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。