Realization of separable first- and second-order 2-D all-pass digital filters
P.S. Reddy, P. Satyanarayana, M.N.S. Swamy · IEEE Transactions on Circuits and Systems · 1989
The authors give structures realizing first- and second-order, separable, 2-D, all-pass digital filters. The method employs signal flow graph technique and S.J. Mason's gain formula to obtain the transfer function. The realizations obtained are minimal delay and minimal multiplier structures.>