Title :
Generalizing symmetric extension: multiple nonuniform channels and multidimensional nonseparable IIR filter banks
Author :
Bamberger, Roberto H. ; Eddins, Steven L. ; Nuri, Veyis
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Washington State Univ., Pullman, WA, USA
Abstract :
The symmetric extension method for the implementation of size-limited filter banks is generalized to allow for M-channel nonuniform filter banks, where M⩾2. Also, the symmetry condition on the analysis-synthesis filters is relaxed. A closed-form solution is presented for calculating initial conditions for symmetric extension IIR (infinite impulse response) filter banks. Unlike a previous solution, the new IIR method may be directly extended to two-dimensional nonseparable filter banks
Keywords :
filtering and prediction theory; multidimensional digital filters; 2D filter banks; analysis-synthesis filters; closed-form solution; infinite impulse response; initial conditions; multiple nonuniform channels; nonseparable IIR filter banks; symmetric extension method; Band pass filters; Closed-form solution; Computer vision; Convolution; Filter bank; Frequency; IIR filters; Image coding; Multidimensional systems; Signal analysis;
Conference_Titel :
Circuits and Systems, 1992. ISCAS '92. Proceedings., 1992 IEEE International Symposium on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0593-0
DOI :
10.1109/ISCAS.1992.230053
