Two-Dimensional Block Implementation of Symmetric Half-Plane Recursive Digital Filters
Journal
IEEE Transactions on Circuits and Systems
Journal Volume
35
Journal Issue
6
Pages
736-742
Date Issued
1988
Author(s)
Abstract
Two-dimensional (2-D) block implementation of 2-D symmetric half-plane (SHP) recursive filters is considered. A 2-D block-recursive equation is first derived. It is found that all the coefficient matrices associated with the input and previous output blocks are Toeplitz in their submatrices. Therefore, high-speed convolution algorithms can be utilized to perform the associated submatrix-vector multiplications. The block implementation using the fast Fourier transform is compared to the direct implementation as regards computational requirements.>
Type
journal article