Title :
Optimal design method of 2-D IIR digital filters based on a simple genetic algorithm
Author :
Kawamata, Masayuki ; Imakubo, Jun ; Higuchi, Tatsuo
Author_Institution :
Dept. of Syst. Inf. Sci., Tohoku Univ., Sendai, Japan
Abstract :
The paper proposes an optimal design method of separable-denominator (SD) two-dimensional digital filters (2DDFs) based on a simple genetic algorithm (SGA) for frequency-domain specifications. Parameters of the transfer function of a SD-2DDF are encoded to bit strings in order to apply a SGA to the design. Stability of a 2DDF is easily checked because of the separability of the denominator of the transfer function. The proposed method has flexibility for change of specifications of 2DDFs, and enables one to use arbitrary error functions. The usefulness of the proposed method is demonstrated by design examples
Keywords :
IIR filters; encoding; frequency-domain synthesis; genetic algorithms; stability; transfer functions; two-dimensional digital filters; 2D IIR digital filters; SD-2DDF; bit strings; error functions; frequency-domain specifications; genetic algorithm; optimal design method; separability; separable-denominator; transfer function; Design methodology; Design optimization; Digital filters; Filtering; Finite impulse response filter; Genetic algorithms; IIR filters; Optimization methods; Stability; Transfer functions;
Conference_Titel :
Image Processing, 1994. Proceedings. ICIP-94., IEEE International Conference
Conference_Location :
Austin, TX
Print_ISBN :
0-8186-6952-7
DOI :
10.1109/ICIP.1994.413421
