拉普拉斯

lā pǔ lā sī
  • Laplace
拉普拉斯拉普拉斯
拉普拉斯[lā pǔ lā sī]
  1. 基于拉普拉斯矩阵的DNA序列集相似性分析

    Analysis of Similarity Between DNA Sequence Sets Based on Laplace Matrix

  2. 十九世纪,P·西蒙,M·拉普拉斯统一了这些早期思想,首先建立了概率的基本理论。

    In the nineteenth century , Pierre Simon , Marquis de Laplace unified all these early ideas and compiled the first general theory of probability .

  3. 一类含P拉普拉斯算子的非线性椭圆边值问题解的存在性

    The Existence of a Solution of Nonlinear Elliptic Boundary Value Problems Involving the P-Laplacian Operator

  4. ε-污染伽马类和拉普拉斯类数据的Robust量化器

    Robust Quantization of ε - Contaminated Gamma and Laplacian Data

  5. 用拉普拉斯变换用MATLAB求解二阶电路微分方程验证了得到的各元件参数。

    Secondly , solving differential equation in LAPLACE transformation with MATLAB validates the acquired parameters .

  6. 这是一个VC图象处理源代码,用拉普拉斯锐化进行边缘检测。

    This is a VC image processing source code , using Laplacian sharpening edge detection .

  7. 常系数线性微分方程的拉普拉斯(Laplace)变换解法

    Laplace transform solution in linear differential equation with constant coefficients

  8. 基于拉普拉斯分布模型的DCT域图像水印视觉可见性评估

    Evaluating the Visibility of Image Watermarking in the DCT Domain Based on Laplacian Model

  9. 基于拉普拉斯算子的Snakes方法分析

    Snakes Methods Analysis Based on Laplacian Operator

  10. 本文从拉普拉斯逆变换入手,推导出了逆Chirpz变换的定量计算方法。

    Base on inverse Laplace transform theory , author derived calculating method of a kind of inverse Chirp Z-transform .

  11. 本文给出的方法在x方向采用有限元法,t方向用拉普拉斯的数值逆求解。

    This article presents the finite element method in the direction of x , but applies the inversion technique for the Laplace transform in the direction of t.

  12. 这类问题可归结为拉普拉斯(Laplace)方程(包括非齐次的)或Possion方程。

    These problems can be deduced to Laplace or Possion equation .

  13. 采用拉普拉斯变换交流阻抗测量方法,测量了铝在NaCl溶液中阳极极化后的瞬时阻抗。

    The instantaneous impedance of Al in 1N NaCl at various polarization times has been measured using Laplace transformation method .

  14. Net环境下基于WebServices实现遥感图像的分布式处理方案,对其框架、流程进行了设计,并以图像处理的算法分布式为例详细介绍了边缘提取中拉普拉斯8邻域提取的具体WebServices实现。

    NET and Web Services to realize RS image distributed processing , then designs the frame and the work flow , and at last presents a RS image edge extraction example by this technology .

  15. 数学上,EIT的物理模型符合拉普拉斯椭圆偏微分方程。

    Mathematically , the physical model for EIT meets the Laplace elliptic partial differential equation .

  16. 相较于拉普拉斯分布模型,图像经DCT变换后交流系数的分布更加符合柯西分布。

    Compared to the Laplacian distribution model , the distribution of DCT transform coefficients is more in line with the Cauchy distribution .

  17. 针对井筒存储效应对ISA(InverseSolutionAlgorithm)试井分析方法的影响,利用拉普拉斯反褶积法对实际试井资料进行处理。

    In order to overcome the effects of wellbore storage in the ISA ( Inverse Solution Algorithm ) well testing , the Laplace deconvolution method is applied to deal with practical well testing data .

  18. 实验结果表明,在降噪方面该算法优于离散小波变换方法、拉普拉斯金字塔方法和Morphological金字塔方法。

    The experimental results demonstrated that the performance of proposed algorithm is superior to that of image fusion algorithms based on discrete wavelet transform , Laplacian pyramid , and Morphological pyramid respectively .

  19. 计算机仿真结果表明,当观察的低分辨率图像的噪声方差较大时,本文提出的算法重建的效果相对于基于拉普拉斯算子或者是双边滤波器算子的MAP算法都有较大的改善。

    Simulation results show that when low resolution images of the noise variance is larger , the algorithm proposed in this paper has a results than algorithms that based on the Laplacian or bilateral filter operator .

  20. 正则图多重线图的拉普拉斯Estrada指数

    The Laplacian Estrada Index of Iterated Line Graphs of Regular Graphs

  21. 采用拉普拉斯变换、泰勒极数和线性逼近的方法,将分析模型简化,提出了两种简单而实用的PIN二极管仿真模型;

    Using the Laplace transform , Tayler expansion and Asymptotic Waveform Evaluation ( AWE ) methods , simplifying the analysis model , obtaining two simple and applicable PIN diode simulation models ;

  22. 最后,通过拉普拉斯反演后求得扰动量之傅里叶分量的解析解是用传播核(或格林函数)Kk(z,t)来表示的。

    In the real world the Fourier components of the fluctuations are written with the propagation kernal ( or Green function ) Kk ( z , t ), after the inverting Laplace transforms are performed .

  23. 本文利用MATLAB求解《复变函数与积分变换》中的留数、有理函数展开、富里叶变换、拉普拉斯变换和线性微分方程组等若干问题。

    Here MATLAB is utilized to solve several problems in Complex variable function & integral transform , such as : residue , rational function , Fourier transform , Laplace transform and system of linear differential equations .

  24. 另外,我们还给出了拉普拉斯方程和一般方程的Pinching-估计以及Hamilton张量极大值原理的一个应用。

    Furthermore , we shall give Pinching-estimate for general equation and the proof of n-dimensional for the Laplace equation and an application of Hamilton tensor maximum principle .

  25. 本文在LPP算法中,通过拉普拉斯图保持局部样本不变性,并引入全局算法主成分分析(PCA)保证了样本的整体性。

    Under the condition of Laplace figure keeping local sample data , while overall algorithm is introduced to ensure the integrity of the sample .

  26. 定量分析了高斯函数、高斯-拉普拉斯二阶微分函数和DOG函数对标准尺度信号的检测性能并作了比较,比较结果表明DOG函数有更好的尺度检测性能;

    After the quantitative analysis and the comparison of the scale detection performance of Gauss function , the second order derivative of Gaussian-laplacian and DOG , it is showed that DOG function has better scale detection performance .

  27. 在指定的控制微元内,通过对模型的假设和简化以及对系数T,X的常数化,并对该模型进行双拉普拉斯变换,获得了模型的解析解;

    According to the assumptions of the model and simplified representation on the coefficients T , X regarded as constant , the analytic solution of this model has been gotten by implementing the double Laplace transformation on it .

  28. 对传统的中值滤波实验分析又加以改进,均不能满足系统要求,由此本文又采用了拉普拉斯算法与高斯算法相结合的LOG滤波方法,通过二次滤波,达到了滤波要求;

    But the improved single median filter can 't meet the request of system , so by combining of Laplacian and Gauss arithmetic the paper adopts LOG filter , which filters twice and satisfies the request of filter ;

  29. 现有多种方法能用于检测钙化点并各有优缺点,其中典型的高斯-拉普拉斯算子(LOG)是有效方法之一,尽管其能较精确地检出钙化点的位置但检测效率低。

    Now , various methods can be used to detect microcalcifications , among them typical Gauss - Laplace operator ( LOG ) is one of effective methods . Although LOG can accurately detect microcalcifications , it is inefficient .

  30. 在文中,分别讨论了拉普拉斯平滑及其改进算法、平均曲率流、PDE方法及基于方向的平滑算法。

    In this paper , we discuss Laplacian smoothing and modified methods , mean curvature flow , PDE method and the smoothing method based on directions .