Title :
Design of orthogonal near-symmetric scaling filters by using differential evolution
Author_Institution :
Lab. of Appl. Math., Lappeenranta Univ. of Technol., Finland
Abstract :
The use of differential evolution in the design of a near-symmetric orthogonal scaling filter is studied. Parametrization is used for maintaining the orthogonality while the symmetry and moment conditions are optimized. Several near-symmetric scaling filters have been found and the results are compared with filters found by Grobner basis method. Especially a very near-symmetric and smooth 8-tap orthogonal filter is constructed.
Keywords :
evolutionary computation; filtering theory; optimisation; Grobner basis method; differential evolution; orthogonal near-symmetric scaling filter; Computer networks; Filter bank; Image reconstruction; Laboratories; Mathematics; Multiresolution analysis; Nonlinear filters; Optimization methods; Wavelet analysis; Wavelet domain;
Conference_Titel :
Cybernetics and Intelligent Systems, 2004 IEEE Conference on
Print_ISBN :
0-7803-8643-4
DOI :
10.1109/ICCIS.2004.1460453
