Implementation structure of 3-D FIR digital filters based on the transformation method

Authors:
Guergana Mollova
Affiliations:
Dept. of Computer Aided Engineering, University of Architecture, Civil Engineering and Geodesy, Sofia, Bulgaria
Venue:
ISCGAV'08 Proceedings of the 8th conference on Signal processing, computational geometry and artificial vision
Year:
2008

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Abstract

In this paper, we show the application of Chebyshev structure proposed by McClellan and Chan for design of three-dimensional (3-D) filters based on the McClellan transformation. We consider the implementation of 3-D FIR cone-shaped filters designed recently by Mollova and Mecklenbräuker. The Chebyshev structure is originally developed for 2-D digital filters designed by transformation method, but it is also applicable for 3-D filters design. By using analytical expressions for transformation function and 3-D direct convolution, an effective realization of the transformation subfilter is proposed.