Construction of two-direction tight wavelet frames
Yan FENG, Shouzhi YANG
Construction of two-direction tight wavelet frames
We investigate the construction of two-direction tight wavelet frames. First, a sufficient condition for a two-direction refinable function generating two-direction tight wavelet frames is derived. Second, a simple constructive method of two-direction tight wavelet frames is given. Third, based on the obtained two-direction tight wavelet frames, one can construct a symmetric multiwavelet frame easily. Finally, some examples are given to illustrate the results.
Two-direction refinable function / two-direction tight wavelet frame / two-direction quadrature mirror filter (TQMF) condition / multiwavelet / symmetry
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