Title :
BIBO stability of inverse 2-D digital filters in the presence of nonessential singularities of the second kind
Author :
Lin, Zhiping ; Bruton, Leonard T.
Author_Institution :
Dept. of Electr. Eng., Calgary Univ., Alta., Canada
fDate :
2/1/1989 12:00:00 AM
Abstract :
It is shown that there exist bounded-input bounded-output (BIBO) stable 2-D filter transfer functions having simple nonessential singularities of the second kind on T2, that also admit BIBO stable inverses. A class of such functions is obtained. Another class of BIBO stable 2-D functions that cannot have BIBO stable inverses is also characterized
Keywords :
stability; two-dimensional digital filters; BIBO; bounded-input bounded-output; inverse 2-D digital filters; nonessential singularities; stable inverses; transfer functions; Degradation; Digital filters; Digital images; Image restoration; Large scale integration; Multidimensional systems; Polynomials; Stability; Testing; Transfer functions;
Journal_Title :
Circuits and Systems, IEEE Transactions on
