Efficient design of 2D multiplierless FIR filters by transformation
This paper deals with the design of 2D multiplierless FIR digital filters, first a special class of multiplierless 1D FIR filters are designed with coefficients which are a sum or difference of power-of-two, and then map it into 2D multiplierless FIR filters by McClellan transform; This technique has the advantage that it is very fast, because only a 1-D filter must be designed, also the hardware implementation for these 2D FIR filters is very attractive and efficient.