Description: This a Bayesian ICA algorithm for the linear instantaneous mixing model with additive Gaussian noise [1]. The inference problem is solved by ML-II, i.e. the sources are found by integration over the source posterior and the noise covariance and mixing matrix are found by maximization of the marginal likelihood [1]. The sufficient statistics are estimated by either variational mean field theory with the linear response correction or by adaptive TAP mean field theory [2,3]. The mean field equations are solved by a belief propagation method [4] or sequential iteration. The computational complexity is N M^3, where N is the number of time samples and M the number of sources. Platform: |
Size: 7168 |
Author:陈互 |
Hits:
Description: 利用偏微分方程总变分（TV）方法进行图像去噪代码。基于ROF模型的。-Partial differential equations using the total variational (TV) method of image denoising code. Based on the ROF model. Platform: |
Size: 1024 |
Author:luohongwen |
Hits:
Description: 将变分法用于图像去噪最早且引用率极高的文章是1992Rudin等人的文章，这里实现了其中的算法-The variational method for image denoising first rate and highly cited article is 1992Rudin article and others, where the realization of the algorithm which Platform: |
Size: 1457152 |
Author:黎芳 |
Hits:
Description: 总变分法TV模型代码domo，部分代码，对图像恢复，去噪有一定作用-Variational method of total TV model code domo, some code, for image restoration, denoising have a certain role Platform: |
Size: 162816 |
Author:chanzhicogn |
Hits:
Description: 一套使用全变分方法进行图像去噪处理的图像源代码(MATLAB),算法结果性能优良,适用范围广泛.-Use a variational method for image denoising images deal with the source code (MATLAB), the results of algorithm performance, the broad scope of application. Platform: |
Size: 76800 |
Author:dhxu757 |
Hits:
Description: This Matlab file demomstrates a narrow band algorithm that implements the level set method in Li et al s paper "Level Set Evolution Without Re-initialization: A New Variational Formulation" in Proceedings of CVPR 05, vol. 1, pp. 430-436. Platform: |
Size: 20480 |
Author:Alpha |
Hits:
Description: c++的图像处理程序，主要功能是去噪，利用变分法的偏微分方程作的，很好的程序-c++ image processing procedures, the main function is to de-noising using variational method for the partial differential equations, and a very good program Platform: |
Size: 6926336 |
Author:shenmiao |
Hits:
Description: Total variation整体变分方法的经典论文-Total variation variational method the overall thesis of the classical Platform: |
Size: 1455104 |
Author:张驰 |
Hits:
Description: level set 图像分割算法
Level Set Evolution Without Re-initialization: A New Variational Formulation Matlab 实现-level set method for image segmentation
Level Set Evolution Without Re-initialization: A New Variational Formulation Platform: |
Size: 17408 |
Author:Deng Fu Qin |
Hits:
Description: 建模教程 包含变分法，层次分析法，整数规划，图与网格等 附带MATLAB简介-Modeling Tutorial contains variational method, the level of analysis, integer programming, such as map and attached to the grid MATLAB Introduction Platform: |
Size: 1819648 |
Author:李峰 |
Hits:
Description: ：Or绍了有限元法的本质特征及用变分试函数法和残值试函数法导出有限元法的过程，给出了在Matlab
语言环境下实现有限元法的步骤．利用Matlab语言中的PDE工具箱求解偏微分方程具有简便、快速、可视化
程度高等优点，能满足精度要求，并以一个工程实例说明了利用有限元法求解偏微分方程从而解决实际问题
的方法．-: Or introduce a finite element method and the essential characteristics of the trial function with variational trial function and the residual value method to export the process of finite element method is given in the Matlab language environment for the realization of the finite element method under the steps. Matlab language using PDE Toolbox to solve partial differential equations is simple, rapid and high degree of visibility, to meet accuracy requirements, and examples of a project using the finite element method for solving partial differential equations to solve practical problems . Platform: |
Size: 141312 |
Author:云 |
Hits:
Description: 变分方法及其应用，在研究偏微分方程的应用前，先看看其基础理论，对于代码的具体实现以及公式推导都会有帮助-Variational method and its application, the application of partial differential equations in the study before the first look at its basic theory, for the specific implementation code and the formula will help Platform: |
Size: 2702336 |
Author:tedachun |
Hits:
Description: 本文主要研究基于水平集方法的活动轮廓模型图像分割，在回顾活动轮廓模
型发展的基础上，介绍了曲线演化理论及其水平集方法，证明了水平集方法可以
有稳定的数值实现方式且其处理拓扑变化的自然性，进一步引出了变分水平集方
法。
本文介绍了两种不同的几何活动轮廓模型：基于梯度信息的李纯明模型以及
基于区域信息的 Chan-Vese 模型（C-V 模型）。在分析上述两模型的优缺点上，提
出了一种改进的 C-V 模型，改进模型引入了距离约束项，同时对基于区域的外部
能量项进行了改进，使得水平集函数重新初始化寓于模型的演化之中，分割结果
对参数的依赖性减小。
-This paper mainly study image segmentation of active contour model based on
level set. After reviewing the development of the active contour model, curve evolution
and level set method are presented, then we proved that the level set method has a stable
numerical realization and can describe the topology change of the contour naturally, in
addition we introduce level set of variational method.
We introduce two different GAC models in this paper: Li Chunming model which
is based on gradient information and Chan-Vese model （C-V model） which is based
on region information. Based on the drawbacks and advantages of these two models, we
improve the C-V model by adding penalizing energy term of signed distance function,
at the same time, mending the external energy term which based on region information,
then the re-initialization of the level set can accomplish in the model evolution, and the
degree of the segmentation result depend on the parameters decline.
Platform: |
Size: 3344384 |
Author:赵昭 |
Hits:
Description: 图像处理。PDE与变分法相融合的低质量指纹增强.是一种新型的指纹增强方法-Image Processing. PDE and variational method is a new type of fingerprint enhancement method Platform: |
Size: 2652160 |
Author:猪头 |
Hits:
Search - variational method