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speccorr
这里给出另一组对谱线校正的方法,其中包括了9种方法。(Here are the other group on the spectrum correction method, including nine kinds of methods.)
- 2008-02-18 18:19:48下载
- 积分:1
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29782188Classification_toolbox
这是一些关于模式识别工具箱的源代码,和模式识别第二版配套使用,有很强的运用价值。(These are some original Matlab codes on pattern classification:pattern calssification toolbox)
- 2009-05-08 08:43:41下载
- 积分:1
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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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BP
说明: 改进后的BP神经网络,可以用于模型的优化和预测(The improved BP neural network can be used for optimization and prediction models)
- 2014-09-11 17:29:51下载
- 积分:1
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KalmanAdptiveFilter
说明: 卡尔曼滤波器是用前一个估计值和最近一个观察数据估计信号的值,他是用状态方程和递推的方法进行估计,本例用来追踪一个5阶的FIR不确定的滤波器系数。(Kalman filter is to use the previous estimate and the most recent observation data to estimate the value of the signal, he is using the state equation and recursive estimation methods, in this case is used to track a 5-order FIR filter coefficients of uncertainty.)
- 2009-10-23 09:14:34下载
- 积分:1
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KMeans1
My version of k-means function. Improved so that there are no empty clusters after segmentation.
- 2009-05-24 04:05:31下载
- 积分:1
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demo
数字图像处理MATLAB演示程序。包含图像灰度处理、平滑、锐化、压缩等。运行demo.m执行主界面。(Digital Image Processing MATLAB demonstration program. Contains the image gray scale processing, smoothing, sharpening, compression. The run demo.m perform the main interface.)
- 2013-02-25 20:28:05下载
- 积分:1
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some_beamforming_method
多种波束形成源代码,有很好的可扩展性
包括:直接相移波束形成,MVDR波束形成,music波束形成的源程序(A variety of beamforming source code, has very good scalability, including: direct phase-shift beamforming, MVDR beamforming, music source beamforming)
- 2008-05-15 00:32:06下载
- 积分:1
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PEAKS
Peaks计算二维光子晶体带隙程序较长用起来还可以(Peaks calculate two-dimensional photonic bandgap program longer can also use them)
- 2013-01-18 22:36:00下载
- 积分:1
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PCA
使用主成分分析对高维数据进行降维,程序包含了降维的过程和结果(Using PCA to reduct dimensionality for data. the program contains the process and solution.)
- 2013-12-25 21:56:37下载
- 积分:1