Implementation of 2-D separable-in-denominator digital filters for real-time processing

The general decomposition of separable in denominator 2-D discrete systems is reported. Several novel realizations for separable-in-denominator 2-D digital filters are presented. The number of required multipliers and additions for the implementation of these structures are reduced in comparison with the previously reported structures. The proposed realizations possess high degrees of parallelism/modularity which are suitable for VLSI design and implementation.