"For a one-dimensional finite pyramid filter with (2n???1) coefficients, its coefficients may be represented by a 1 x (2n???1) matrix [C1, C2, C3, . . . , Cn???1, Cn, Cn???1, . . . , C3, C2, C1]; where, n is a positive integer and C2???C1=C3???C2=. . . =Cn???Cn???1." . . . .