1) spline dyadic wavelet
样条二进小波
1.
It was proved that the amplitude of spline dyadic wavelet transform of signal depended on its odd order derivation, while variance of wavelet transform coefficients of white Gaussian noise decreased at a decreasing rate across scales.
推导出信号的样条二进小波变换系数幅值沿尺度的变化趋势依赖于信号的奇数阶导数,高斯白噪声的样条二进小波变换系数方差沿尺度逐渐衰减且衰减率越来越小。
2) dyadic spline wavelets
二进样条小波
1.
In order to overcome the matter about locating singularity position,the paper introduces the ways of symmetry dyadic spline wavelets on zero,antisymmetry dyadic spline wavelets on zero,at the same time,puts forward to the transform arithmetic.
为了解决小波分析对奇异信号的奇异点定位困难的问题,重点介绍了基于余弦基展开式的零点对称的二进样条小波、零点反对称的二进样条小波构造方法,并提出了具体的实现算法及计算过程。
3) the second-order B-spline wavelet
二阶样条小波
1.
It was shown that the second-order B- spline wavelet was superior to the two others.
通过Haar小波函数、三次样条函数的导函数、二阶样条小波为小波母函数的连续小波变换法对模拟含噪声重叠信号的处理结果表明:二阶样条小波的连续小波变换法所得结果的信噪比明显高于前两种方法。
4) quadratic spline wavelet
二次样条小波
1.
And quadratic spline wavelet and Hu invariant moments are used to implement the shape-based image retrieval in this paper.
本文介绍了小波变换应用于图像边缘检测的基本原理,并利用二次样条小波变换和Hu不变矩算法建立图像检索系统。
5) quadric B-spline wavelet
二次B样条小波
1.
Based on Cinny s edge detecting criteria, according to the design-aim of optimal edge-filter, this paper discussed the general rules selecting the mother function of wavelet used in edge detection, then constructed a quadric B-spline wavelet and presented a new method of adaptive thresholds edge detection for image based on wavelet transform.
并在此基础上构造出二次B样条小波,提出了基于小波变换的多尺度自适应阈值图像边缘检测的新方法。
6) quadratic B-alpine wavelet
二次B-样条小波
补充资料:样条
样条
spline
样条[刘加;en几a皿,] 在区间【a,妇上定义的具有m一1阶连续导数的函数S。(A。;x),该函数在由剖分△。二“=x。
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参考词条