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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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Untitled
特征提取例3.3 以年龄为论域,取 。Zadeh给出了“年轻”的模糊集Y,其隶属函数为
(Example 3.3 Feature Extraction of age on the field, take. Zadeh gives the " young" fuzzy sets Y, its membership function)
- 2015-03-18 17:33:14下载
- 积分:1
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BPSO
说明: 利用离散二进制粒子群算法,主要用于网络重构(Discrete binary particle swarm optimization algorithm for reconstruction)
- 2020-07-10 09:07:43下载
- 积分:1
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OFDM
ofdm用bpsk下的编程,最后可以做用ofdm和不用的情况的对比(ofdm bpsk programming)
- 2012-11-13 19:54:36下载
- 积分:1
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MPLAB
MPLABde 使用指南 和C指针库(jjdkkddkkdjjd)
- 2010-11-21 22:52:01下载
- 积分:1
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MIMO_OFDM
matlab code for mimo
- 2011-05-22 18:16:17下载
- 积分:1
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Ch10
包含4个高斯分量信号的PWD,比wvd具有更好的性能(Contains 4Gauss component signal PWD, WVD has better performance than)
- 2012-05-17 14:56:20下载
- 积分:1
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matlab2012
matlab2012a 的安装过程及破解步骤(Installation process and cracked steps of matlab2012a)
- 2012-07-01 19:54:14下载
- 积分:1
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Elman
本程序是采用先进的网络结构Elman网,对糖厂PH值澄清工段进行建模。(This procedure is the use of advanced network Elman network, the PH value to clarify the Section of sugar to model.)
- 2010-08-12 19:42:01下载
- 积分:1
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Transient-Response
连接微电网的双馈异步电机的暂态相应的提升(Transient Response Improvement of Microgrids Exploiting the Inertia of a Doubly-Fed Induction Generator (DFIG))
- 2013-01-09 19:00:18下载
- 积分:1