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由小波滤波器系数求尺度函数和小波函数
Computation of the Wavelet and Scaling Functions Using Coefficients of Wavelet Filter
【摘要】 为更好地将离散小波变换和连续小波变换联系起来,在分析了现有的由小波滤波器积法求尺度函数和小波函数的方法的基础上,提出了对迭代卷积法的一种改进算法,同时给出了迭代卷积法的收敛判定方法,并分析了改进后算法的优势.实验结果表明该算法是有效的.
【Abstract】 To associate the discrete wavelet transform with the continuous wavelet transform,an improved algorithm on iterative convolution algorithm is given by analyzing the usually used methods of the computation of the wavelet function and scaling function using coefficients of wavelet filter.The way of judging the convergence of iterative convolution is given.The advantages of improved algorithm is analyzed.The experimental result shows that the modified algorithm is effective.
【关键词】 小波滤波器系数;
尺度函数;
小波函数;
【Key words】 coefficients of wavelet filter; scaling function; wavelet function;
【Key words】 coefficients of wavelet filter; scaling function; wavelet function;
【基金】 国家自然科学基金资助项目(60472037)
- 【文献出处】 重庆大学学报(自然科学版) ,Journal of Chongqing University(Natural Science Edition) , 编辑部邮箱 ,2007年04期
- 【分类号】TN713
- 【被引频次】12
- 【下载频次】629