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VistaRestoreTools1.0
denoise
In BayesShrink[5] we determine the threshold for
each subband assuming a Generalized Gaussian
Distribution(GGD) . The GGD is given by
GG¾ X ¯ (x) = C(¾ X ¯ )exp¡ [® (¾ X ¯ )jxj]¯ (6)
¡ 1 < x < 1 ¯ > 0, where
® (¾ X ¯ ) = ¾ ¡ 1
X [ ¡ (3=¯ )
¡ (1=¯ ) ]1=2
and
C(¾ X ¯ ) = ¯ ¢ ® (¾ X ¯ )
2¡ ( 1
¯ )
and ¡ (t) =
R1
0 e¡ uut¡ 1du.
The parameter ¾ X is the standard deviation and ¯
is the shape parameter It has been observed[5] that
with a shape parameter ¯ ranging from 0.5 to 1, we
can describe the the distribution of coefficients in a
subband for a large set of natural images.Assuming
such a distribution for the wavelet coefficients, we empirically
estimate ¯ and ¾ X for each subband and try
to find the threshold T which minimizes the Bayesian
Risk, i.e, the expected value of the mean square error.
- 2012-06-08 01:38:48下载
- 积分：1
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basicboostconverter
this is simulink model of boost converter basic principal of operation
- 2013-08-26 06:02:12下载
- 积分：1
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MATLAB
说明： MATLAB做的源代码，用于录制声音等获取信号啦，研究(MATLAB to do the source code, used to record the voice signal, such as access to you, research)
- 2008-10-28 23:00:24下载
- 积分：1
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matlab
RLS , channel equalizer
- 2011-09-09 00:26:38下载
- 积分：1
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genzonglvbo
实现雷达信号处理的跟踪滤波功能，亲测可用，效果很好(Tracking radar signal processing filtering, pro-test can be used with good results)
- 2015-01-15 23:37:57下载
- 积分：1
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echo-cancellation
利用lms算法，实现回波抵消，消除回声信道返回的噪声信号。(Least means squares (LMS algorithm, realize the echo offset, eliminate the noise signal back to the echo channel.)
- 2011-12-14 15:37:08下载
- 积分：1
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RVM_matlabToolBox
相关向量机(RVM)的matlab源程序，包含快速算法，内含代码使用说明。 RVM采取是与支持向量机相同的函数形式稀疏概率模型，对未知函数进行预测或分类。 优点： (1) 不仅仅输出预测目标量的点估计值,还可以输出预测值的分布. (2) 使用更少数量的支持向量,从而显著减少输出目标量预测值的计算时间. (3) RVM不需要估计过多的参数. (4) RVM对是否满足Mercer 定理的核函数没有限制,适应性更好(Relevance Vector Machine (RVM) of the matlab source code, including fast algorithm that contains code for use. RVM support vector machine is taken the same functional form sparse probabilistic model to predict the unknown function or classification. Advantages: (1) is not only the amount of output predicted target point estimates, but also the distribution of predicted values can be output. (2) using a smaller number of support vectors, thereby significantly reducing the output target amount predicted value calculation time. (3) RVM does not require excessive parameter estimation. (4) RVM meets Mercer theorem on the kernel function is not limited, and better adaptability)
- 2013-11-21 11:05:48下载
- 积分：1
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goldbach
问题描述：
哥德巴赫猜想：任何大偶数均可表示为2 个素数之和。(Problem Description: Goldbach conjecture: any large even number can be expressed as two Primes.)
- 2008-05-05 22:11:30下载
- 积分：1
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matlab_chaos_toolbox
说明： 混沌工具箱，用matlab编写的，该工具箱包括了混沌时间序列分析与预测的常用方法(Chaos toolbox matlab prepared to use the toolbox, including a chaotic time series analysis and forecast of the common methods)
- 2009-07-22 18:17:45下载
- 积分：1
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control2
online identification using neural network
- 2015-02-10 04:30:55下载
- 积分：1
