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PDEMatlab
这是偏微分方程在图像处理中的应用一书的配套光盘,非常好的东东哦(This is a partial differential equations in image processing applications supporting CD-ROM book, very good stuff oh)
- 2010-06-20 12:01:39下载
- 积分:1
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FDTF_2D
this file is yee method to simulation of plane wave propagation
- 2010-01-24 00:14:46下载
- 积分:1
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mapping-technology
matlab 一些作图划线的基本知识,并且包含一些矩阵运算,方程的求解,附带若干个例子(Basic knowledge of MATLAB, some mapping crossed, and contains a number of matrix calculation, equations, with several examples)
- 2014-02-21 16:07:52下载
- 积分:1
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func_coherence
相关函数,计算功率谱,互功率谱,相关性和相位(coherence function,Computing power spectrum, cross spectrum, coherence and phase)
- 2016-03-30 11:03:53下载
- 积分:1
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BayesNetToolboxforMatlab
Bayes Net Toolbox for matlab,包含源码和说明(Bayes Net Toolbox)
- 2010-07-31 10:52:28下载
- 积分:1
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hanban-paiduilun--renkouzengzhang
本人自己做的三篇数学建模论文 一个是基于主成分分析的人口增长预测 一个是基于排队论的高速公路收费口的设置 一个是关于航班的(I own the three papers of mathematical modeling is based on principal component analysis of a population forecast is based on queuing theory, a highway toll gate, setting one on the flight)
- 2011-09-22 12:19:23下载
- 积分:1
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ga-tool1
基于matlab的关于遗传算法的一些重要的函数的m文件,供读者参考
(Based on some of the important matlab m file on genetic algorithm function for readers reference)
- 2013-12-23 14:16:47下载
- 积分:1
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a.m
test, this is only to learn ow to start.
- 2009-12-22 17:23:49下载
- 积分:1
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PN_synchronization_simlulink
基于PN序列的同步仿真链路(simulink+m files),收端算法为接受序列与本地序列求滑动相关。(PN sequence based on the synchronous Link Simulation (Simulink m files), Algorithm-admission to accept the sequence with the local demand sliding related sequences.)
- 2007-01-25 10:15:42下载
- 积分:1
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DCTlicheng
研究表明,构成K一L变换矩阵的向量也就是ToePhtz矩阵的特征向量。与此同时,离散
余弦变换矩阵逼近于ToePutz矩阵的特征向量矩阵,所以离散余弦变换矩阵与自然图像的
K一L变换矩阵十分相似。经过离散余弦变换后的变换系数块的协方差矩阵Cy非常接近对角
阵,即除了对角线元素以外,其它很多元素都近似为0,并且在左上角集中了主要能量。这
反映了自然图像大部分区域变化不大,亮度突变只占少数,即图像能量以低频成分为主的特
性。通过变换后的量化,舍弃对视觉效果影响较小的次要信息,可达到进一步的压缩效果。
虽然从去相关性能的意义上讲,DCT是一种次于K一L变换的准最佳变换,但是从算法实现的角度来看,DCT则远远优于K一L变换。首先,当图像的分块大小确定后,DCT的变换矩阵也就随之确定了,不随输入信号的统计特性变化而变化 其次,二维DCT能够分解成两次一维DCT,有利于硬件实现。
(Studies have shown that constitute a K L transformation matrix vector is ToePhtz eigenvector of the matrix. At the same time, discrete
The cosine transform matrix approximation in ToePutz matrix eigenvector matrix, so the discrete cosine transform matrix and natural images
Is very similar to a K L transformation matrix. After discrete cosine transform, the transform coefficient block of Cy is very close to the diagonal of covariance matrix
Matrix, namely except diagonal elements, many other elements are approximate to 0, and focused the main energy in the upper left corner. this
Reflects the natural images most area changed little, brightness mutations accounted for only a few, the energy is given priority to with low frequency components of image
Sex. Through quantitative after transformation, abandoning smaller effect on the visual performance of secondary information, can achieve further compression effect.
Although from related to the performance of the sense, DCT is a kind o)
- 2013-11-25 16:00:24下载
- 积分:1