Fast calculation of continuous wavelet transform using polynomial
Masako Omachi, Shinichiro Omachi · 2007
This paper proposes an efficient calculation method of the continuous wavelet transform (CWT) at various scales. In the proposed method, the mother wavelet is represented by a polynomial. Then an efficient incremental algorithm for calculating the convolutions necessary for CWT using the polynomial is presented. Experimental results using two-dimensional data clarifies that the proposed method is much faster than the traditional methods.