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Matlab-code
有限元计算程序，三角形线性单元求解泊松方程
包含网格划分，求解，误差分析(Finite element program)
- 2011-11-19 20:56:46下载
- 积分：1
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DCT_and_IDCT_for_image
dct and idct for image.matlab实现信息序列的嵌入和提取(dct and idct for image.matlab realize embedded information and extract sequence)
- 2007-10-11 15:25:13下载
- 积分：1
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GUISUSAN
边缘是图像最基本的特征，是图像分割的第一步。经典的边缘检测方法如：Roberts，Sobel，Prewitt，Kirsch，Laplace等方法，基本都是对原始图像中象素的小邻域构造边缘检测算子，进行一阶微分或二阶微分运算，求得梯度最大值或二阶导数的过零点，最后选取适当的阀值提取边界。由于这些算法涉及梯度的运算，因此均存在对噪声敏感、计算量大等缺点。在实践中，发现SUSAN算法只基于对周边象素的灰度比较，完全不涉及梯度的运算，因此其抗噪声能力很强，运算量也比较小。并将SUSAN算法用于多类图像的边缘检测中，实验证明该算法非常适合含噪图像的边缘检测。 2 SUSAN边缘检测简介
(err)
- 2009-10-22 11:34:46下载
- 积分：1
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RD
说明： 实现了SAR成像点目标仿真中中RD算法的零斜视角成像，根据洪文翻译的Ian G. Cumming的《合成孔径雷达成像算法与算法》讲解的算法实现。(SAR imaging point target to achieve a simulation algorithm in RD zero oblique angle imaging, achieved according to Hung translation of Ian G. Cumming " synthetic aperture radar imaging algorithm and algorithm" to explain the algorithm.)
- 2014-09-03 21:02:02下载
- 积分：1
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gui3
matalb guui......................(matalb gui.......................)
- 2013-11-03 20:49:41下载
- 积分：1
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small-world-networks
1998年, Watts和Strogatz 提出了小世界网络这一概念,并建立了WS模型。 实证结果表明,大多数的真实网络都具有小世界特性(较小的最短路径) 和聚类特性(较大的聚类系数) 。
WS小世界模型构造算法
1、从规则图开始：考虑一个含有N个点的最近邻耦合网络，它们围成一个环，其中每个节点都与它左右相邻的各K/2节点相连，K是偶数。
2、随机化重连：以概率p随机地从新连接网络中的每个边，即将边的一个端点保持不变，而另一个端点取为网络中随机选择的一个节点。其中规定，任意两个不同的节点之间至多只能有一条边，并且每一个节点都不能有边与自身相连。
(In 1998, Watts and Strogatz proposed the concept of the small world network, and the establishment of the WS model. The empirical results show that most real networks have small world (the smaller the shortest path) and clustering properties (high clustering coefficient).
WS small-world model construction algorithm
1, from the rules FIG: consider a nearest neighbor coupling network with N points, they are surrounded by a ring, wherein each node and its left and right adjacent to each of K/2 connected to the node, K is an even number.
The 2 randomized reconnection: randomly with probability p from the new connection on each side of the network, coming section of one of the endpoints remain unchanged, while the other endpoint is taken as the random selection of a node in the network. Which states that between any two different nodes can have at most one edge, and each node can not be connected to its own side.)
- 2021-04-27 08:08:44下载
- 积分：1
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CommandDemo
功能：本程序演示MATLAB常用命令的基本操作
用法：运行该程序后，切换到命令窗口，按提示进行操作(Function: This program demonstrates MATLAB basic operation of the common commands usage: run the program, switch to the command window and follow the prompts)
- 2012-10-03 16:27:10下载
- 积分：1
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6787-14807-1-PB
A Novel Image Reconstruction Algorithm Based
on Concatenated Dictionary
This paper presents a novel method for image
reconstruction, which decomposites the image by
concatenating a redundant dictionary of several bases and
then reconstruct the image efficiently by means of Matching
Pursuit algorithm. The proposed method constructs the
concatenated dictionary with cosine bases, wavelet bases
and contourlet bases, which will lead to a better
approximation of the original image. The experimental
results show that the proposed algorithm can greatly reduce
the computational complexity and generate a better
reconstruction effect compared with previous methods.(A Novel Image Reconstruction Algorithm Based on Concatenated Dictionary This paper presents a novel method for image reconstruction, which decomposites the image by concatenating a redundant dictionary of several bases and then reconstruct the image efficiently by means of Matching Pursuit algorithm. The proposed method constructs the concatenated dictionary with cosine bases, wavelet bases and contourlet bases, which will lead to a better approximation of the original image. The experimental results show that the proposed algorithm can greatly reduce the computational complexity and generate a better reconstruction effect compared with previous methods.)
- 2013-11-24 21:37:52下载
- 积分：1
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GA(PSO)
基于PSO（粒子群算法）的列车速度优化，matlab实现。(Train speed optimization based on PSO (particle swarm optimization) is realized by matlab.)
- 2020-10-28 15:59:57下载
- 积分：1
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downsample
说明： 关于降采样和升采样的代码展示，可以在MATLAB中运行调试，能够给出结果(The code display of down sampling and up sampling can be run and debugged in MATLAB)
- 2020-03-26 20:14:43下载
- 积分：1
