Progress toward three-scale biorthogonal decomposition
Raghuveer Rao, Harold H Szu · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1996
Algorithms are developed for generating FIR filter banks for triadic, biorthogonal decompositions. The basis for the algorithms is a set of simultaneous quadratic equations in the decomposition and reconstruction filter coefficients which arise as necessary conditions for biorthogonality. The solution is obtained either by nonlinear optimization or by iterative pseudoinverse solution of linear equations.