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Factorizations of two families of two-dimensional IIR paraunitary matrices

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2 Author(s)
Delgosha, F. ; Center for Signal & Image Process., Georgia Inst. of Technol., Atlanta, GA, USA ; Fekri, F.

Paraunitary matrices play an important role in the design of perfect reconstruction filter banks. There are building blocks that generate the whole family of both FIR and IIR one-dimensional paraunitary matrices over the complex field. Because of applications in digital signal and image processing, there has been an attempt to generalize the factorization methods to the two-dimensional case. However, no general building block that covers all two-dimensional IIR paraunitary matrices has been found yet. In this paper, we present a factorization for two families of such matrices.

Published in:

Signals, Systems and Computers, 2004. Conference Record of the Thirty-Seventh Asilomar Conference on  (Volume:2 )

Date of Conference:

9-12 Nov. 2003