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Eigenfilter approach for the design of variable fractional delay FIR and all-pass filters

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1 Author(s)
Tseng, C.-C. ; Dept. of Comput. & Commun. Eng., Nat. Kaohsiung Inst. of Technol., Taiwan

An eigenfilter approach is presented for designing 1-D and 2-D variable fractional delay FIR and all-pass filters. First, the coefficients of filters are expressed as a polynomial of the fractional delay parameter. Then, the optimal polynomial coefficients are obtained from the elements of the eigenvector corresponding to the minimum eigenvalue of a real, symmetric and positive definite matrix. Finally, several design examples of 1-D and 2-D variable fractional delay FIR and all-pass filters are used to illustrate the effectiveness of the eigenfilter approach.

Published in:

Vision, Image and Signal Processing, IEE Proceedings -  (Volume:149 ,  Issue: 5 )

Date of Publication:

Oct 2002

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