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symmetric filter
相关语句
  对称滤波器
     The circular symmetric filter bank satisfying reconstruction conditions is designed by genetic algorithm. The 9/7 biorthogonal filter bank is mapped to fan filter bank by the mapping function which derived from the Bernstein polynomial.
     文中利用遗传算法设计满足重构要求的圆对称滤波器组,应用伯恩斯坦多项式设计的映射函数将9/7双正交滤波器组映射为扇形滤波器组。
短句来源
     The circular symmetric filter banks in the fanlet transform,which satisfies reconstruction conditions,was designed by genetic algorithm.
     利用遗传算法设计fanlet变换中满足重构条件的圆周对称滤波器组.
短句来源
     The circular symmetric filter bank satisfying reconstruction conditions is designed by genetic algorithm. The 9/7 biorthogonal filter bank is mapped to fan filter bank by the mapping function which derived from the Bernstein polynomial.
     文中利用遗传算法设计满足重构要求的圆对称滤波器组,应用伯恩斯坦多项式设计的映射函数将9/7双正交滤波器组映射为扇形滤波器组.
短句来源
     The circular symmetric filter bank satisfying perfect reconstruction conditions in the undecimated pyramidal decomposition is designed by McClellan transform.
     文中利用McClellan变换设计非抽样塔式分解中满足精确重构条件的圆对称滤波器组。
短句来源
     Thus from given regular symmetric filter, or from a known symmetric biorthogonal wavelet, a new symmetric biothogonal wavelet filter banks with better frequency selectivity can easily be designed.
     因此,从给出的正则对称滤波器,或者从已知的对称双正交小波,都可以很容易得到一系列带有更好频率选择特性的对称双正交小波滤波器组。
短句来源
  相似匹配句对
     On the Filter
     关于共轭滤波器
短句来源
     Some Things on Symmetric Wavelet's Filter
     对称化思想在小波分析中的应用
短句来源
     Parameterization Design of Symmetric-Antisymmetric Orthonormal Multiwavelets Filter
     对称-反对称正交多小波滤波器序列的参数化设计
短句来源
     Symmetric Copula
     具有对称性的Copula
短句来源
     The Multifunction Filter
     一种多功能气体过滤器
短句来源
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  symmetric filter
The interdigital filter is a symmetric filter of coupled resonators.
      
The difference between Gabor filter and circular symmetric filter lies in the modulating sinusoidal functions.
      
The anti-symmetric function from the odd-symmetric filter will cancel out the corresponding symmetric function from the even-symmetric filter.
      
Their behaviour is more complex, combining in a non-linear fashion the responses of the even and odd symmetric filter responses.
      
Taking the difference of the absolute value of the even-symmetric filter and the odd one give a quantification of the degree of symmetry in an object.
      
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All efficient method of N-D FIR digital filter designs and implementation is presented in the peper.The most interesting aspects of the work in the paper are divided into three parts:First,an efficient transformation functions which have good properties are proposed.Second,the essential properties for spherically or hyperspherically symmetric filters are given.Finally,the most efficient implementatiou which exploits the structure inherent in the design is discussed.

AnEfficientMethodofN-DFIRDigitalFilterDesignsandImplementation¥LiJixing;WeiXiaoling;ShongQian(CollegeofElectronicInformation,...

In this paper, we present two classes of new filters from the viewpoint of probability: the symmetric phase type filter and the symmetric step type filter. We also prove that the sequences of the two classes of filters can uniformly approximate any arbitrarily given non negative symmetric filters within (-∞,+∞). The sequences are shown to have a unified formL(x)=∑si=1 e λ i|x-μ| ∑N ik=0a (i) k|x-μ| k.The analytic expressions of some optimal rules...

In this paper, we present two classes of new filters from the viewpoint of probability: the symmetric phase type filter and the symmetric step type filter. We also prove that the sequences of the two classes of filters can uniformly approximate any arbitrarily given non negative symmetric filters within (-∞,+∞). The sequences are shown to have a unified formL(x)=∑si=1 e λ i|x-μ| ∑N ik=0a (i) k|x-μ| k.The analytic expressions of some optimal rules are given for selecting the optimal filter L(x) . Thus we demonstrate that L(x) is not only general but also easy to analytically and numerically considered. For example, the two papers of Li and Ma [6] and Ma and Li [9] are shown to have an intrinsic uniformity from our results.

该文从概率的角度提出了两类新的滤波器 :对称位相型滤波器和对称梯阶滤波器 ;证明了对任意给定的非负对称滤波器可用这两类滤波器的序列在 (-∞ ,+∞ )内一致逼近 ;这种序列有着统一的结构形式 :L (x) =∑si=1eλi| x -μ | ∑Nik=0a( i)k |x -μ|k.对于 L (x) ,文中给出了选择 L (x )一些最优准则的解析表达式 .从而表明 L (x )既具有一般性 ,又易进行解析处理和数值计算 .对于已有文献中相关于对称指数滤波器的两类不同形式 ,例如 L i等 [6 ] 和 Ma等 [9] ,该文从理论上进一步刻画了它们的内在一致性

Image fusion method based on a new class of wavelet non-separable wavelet with compactly supported, symmetric, orthogonal and dilation matrix is presented. We first present a new constructing method of two dimensional 4x4 symmetric filter bank. Using this method, we construct a non-separable wavelet 4-channels filter bank. The images involved the fusion were decomposed by the filter bank. We use the fusion algorithm as follow: for low-frequency part, the average value was selected, and selecting...

Image fusion method based on a new class of wavelet non-separable wavelet with compactly supported, symmetric, orthogonal and dilation matrix is presented. We first present a new constructing method of two dimensional 4x4 symmetric filter bank. Using this method, we construct a non-separable wavelet 4-channels filter bank. The images involved the fusion were decomposed by the filter bank. We use the fusion algorithm as follow: for low-frequency part, the average value was selected, and selecting the center pixel value of the local area window whose the energy is bigger for the three high-frequency parts of each level, then the new image was reconstructed. The method's performance was evaluated by using the entropy, cross-entropy, mutual information, error of mean square root and points signal to noise ratio. The experiment results show that it has good effect for the fusion of visible image and infrared image, far infrared image and near infrared image, aero image and satellite image, multi-focus images and many others class of images. We can obtain the fused image whose edges is no distortion. The performance of the non-separable wavelet fusion method is better than the performance of the Haar separable wavelet fusion method.

提出了基于一类新的小波-具有紧支撑、对称性和正交性、伸缩矩阵为( )的非张量积小波的图像融合新方法。首先根据非张量积小波理论,提出了一种新的二维4通道4×4对称滤波器组的设计方法,并用此方法设计出一组具有上述性质的非张量积小波4×4滤波器组,利用此滤波器组对参加融合的图像进行滤波;然后对低频部分采用取均值、高频部分采用基于局部窗口能量取大的融合算法对滤波后的图像进行融合;最后重构。并采用熵、交叉熵、互信息、均方根误差和峰值信噪比等指标对该方法的融合性能进行了客观评价。对可见光图像与红外图像、远红外图像与近红外图像、航空图像和卫星图像、多聚焦图像等其它多类图像的融合实验结果表明本方法有较好的融合效果,可得到无边缘失真的融合结果图像,其融合性能比采用同样融合算法的张量积Haar小波的融合方法的融合性能好。

 
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