Construction of the Filte of Symmetry Tight Wavelet Frame
Chang Mia · Jiangnan daxue xuebao. Ziran kexue ban · 2015
In this paper,we study the construction of the symmetry tight wavelet frame when the scaling factor is 5.When the scaling factor is 5,nine framework generators are obtained. For the construction of the generator,we introduce a spline polynomial filter and intermediate variables. When the scale factor is 5,the length of low-pass filter may be 5L and 5L + 2. Using the perfect reconstruction condition,a low pass filter is constructed under the low-pass filter structure form. Under the different lengths of the low-pass filter,high-pass filters are constructed,respectively.